1 | function [Dx, Dy, FileName] = measdisp(varargin) |
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2 | %MEASDISP - Measures the dispersion function |
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3 | % [Dx, Dy, FileName] = measdisp(DeltaRF, BPMxFamily, BPMxList, BPMyFamily, BPMyList, WaitFlag, ModulationMethod) |
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4 | % |
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5 | % Examples: |
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6 | % [Dx, Dy] = measdisp(DeltaRF, BPMxList, BPMyList) |
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7 | % [Dx, Dy] = measdisp('BPMx', [], 'BPMz') |
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8 | % [Dx, Dy] = measdisp(DeltaRF, 'Physics', mcf) |
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9 | % [Dx, Dy] = measdisp(DeltaRF, 'Physics') |
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10 | % [Dx, Dy] = measdisp |
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11 | % [Dx, Dy] = measdisp('Archive') |
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12 | % [Dx, Dy] = measdisp('Struct') |
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13 | % |
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14 | % INPUTS |
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15 | % 1. DeltaRF is the change in RF frequency {Default: .2% energy change} |
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16 | % Units match the units the RF family is in (or the override units) |
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17 | % 2. BPMxFamily and BPMyFamily are the family names of the BPM's, {Default: gethbpmfamily, getvbpmfamily} |
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18 | % 3. BPMxList and BPMyList are the device list of BPM's, {Default or []: the entire list} |
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19 | % 4. WaitFlag >= 0, wait WaitFlag seconds before measuring the tune (sec) |
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20 | % = -1, wait until the magnets are done ramping |
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21 | % = -2, wait until the magnets are done ramping + BPM processing delay {Default} |
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22 | % = -4, wait until keyboard input |
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23 | % 5. Modulation method for changing the RF frequency |
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24 | % 'bipolar' changes the RF by +/- DeltaRF/2 {Default} |
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25 | % 'unipolar' changes the RF from 0 to DeltaRF |
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26 | % 6. 'Physics' - For actual dispersion units (m/(dp/p)) add 'Physics' with an optional input |
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27 | % of the momentum compaction factor. If empty, the mcf will be found from the getmcf |
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28 | % function. That mean the model must be correct for the dispersion to be scaled properly. For |
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29 | % instance, when measuring the disperison of the injection lattice the model lattice |
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30 | % would have to reflect the injection lattice too. If not, override mcf on the input line. |
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31 | % 'Hardware' in the input line forces hardware units, usually mm/MHz. The actual units will |
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32 | % depend on the units for the BPM and RF families. |
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33 | % 7. 'Struct' will return data structures instead of vectors {Default for data structure inputs} |
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34 | % 'Numeric' will return vector outputs {Default for non-data structure inputs} |
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35 | % 8. Optional override of the mode |
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36 | % 'Online' - Set/Get data online |
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37 | % 'Simulator' - Set/Get data on the simulated accelerator using AT (ie, same commands as 'Online') |
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38 | % 'Model' - (same as Simulator, use modeldisp to get the model dispersion with no BPM errors) |
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39 | % 'Manual' - Set/Get data manually |
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40 | % 9. Optional display |
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41 | % 'Display' - Plot the dispersion {Default if no outputs exist} |
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42 | % 'NoDisplay' - Dispersion will not be plotted {Default if outputs exist} |
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43 | % 10.'NoArchive' - No file archive {Default} |
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44 | % 'Archive' - Save a dispersion data structure to \<Directory.DispData>\<DispArchiveFile><Date><Time>.mat |
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45 | % To change the filename, included the filename after the 'Archive', '' to browse |
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46 | % |
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47 | % OUTPUTS |
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48 | % For hardware units: |
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49 | % Dx = Delta BPMx / Delta RF and Dy = Delta BPMy / Delta RF |
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50 | % hence Dx and Dy are not quite the definition of dispersion |
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51 | % |
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52 | % x2(RF0+DeltaRF/2) - x1(RF0-DeltaRF/2) |
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53 | % D = ------------------------------------- |
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54 | % DeltaRF |
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55 | % |
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56 | % where RF0 = is the present RF frequency |
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57 | % |
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58 | % For physics units: |
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59 | % DeltaRF is converted to change in energy, dp/p |
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60 | % |
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61 | % The units for orbit change depend on what the hardware or physics units are. |
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62 | % Typical units are mm for hardware and meters for physics. |
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63 | % |
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64 | % Structure outputs have the following fields: |
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65 | % Data: [double] - orbit shift with RF or energy shift |
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66 | % FamilyName: 'DispersionX' or 'DispersionY' |
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67 | % Actuator: [1x1 struct] - RF structure with starting frequency |
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68 | % ActuatorDelta: Change in RF in hardware units |
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69 | % Monitor: [1x1 struct] - BPM structure with starting orbit |
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70 | % GeV: Storage ring energy |
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71 | % TimeStamp: Clock (for example, [2003 7 9 0 21 36.2620]) |
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72 | % DCCT: Beam current |
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73 | % ModulationMethod: 'bipolar' or 'unipolar' |
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74 | % WaitFlag: BPM wait flag (usually -2) |
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75 | % ExtraDelay: 0 |
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76 | % DataDescriptor: 'Dispersion' |
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77 | % CreatedBy: 'measdisp' |
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78 | % MCF: momentum compaction factor |
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79 | % Units: 'Hardware' or 'Physics' |
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80 | % UnitsString: typically 'mm/MHz' or meters/(dp/p) |
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81 | % dp: change in moment |
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82 | % Orbit: [2 column vectors] (orbit at RF0+DeltaRF/2 and RF0-DeltaRF/2) |
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83 | % RF: [RF0+DeltaRF/2 RF0-DeltaRF/2] |
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84 | % |
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85 | % If no output exists, the dispersion function will be plotted to the screen. |
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86 | % |
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87 | % NOTES |
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88 | % 1. 'Hardware', 'Physics', 'Eta', 'Archive', 'Numeric', and 'Struct' are not case sensitive |
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89 | % 2. 'Eta' can be used instead of 'Physics' |
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90 | % 3. Get and set the RF frequency are done with getrf and setrf |
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91 | % 4. RF frequency is changed by +/-(DeltaRF/2) |
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92 | % 5. All inputs are optional |
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93 | % 6. Units for DeltaRF depend on the 'Physics' or 'Hardware' flags |
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94 | % |
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95 | % See also plotdisp, modeldisp, measchro |
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96 | |
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97 | % |
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98 | % Written by Gregory J. Portmann and Jeff Corbett |
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99 | % Modified by Laurent S. Nadolski |
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100 | % March 2009, add coupling flag |
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101 | |
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102 | % DeltaRFphysics max currently 15 kHz. |
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103 | |
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104 | BPMxFamily = gethbpmfamily; |
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105 | BPMyFamily = getvbpmfamily; |
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106 | BPMxList = []; |
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107 | BPMyList = []; |
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108 | CouplingFlag = 1; |
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109 | |
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110 | WaitFlag = -2; |
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111 | if iscontrolroom |
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112 | ExtraDelay = 5; % seconds; |
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113 | else |
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114 | ExtraDelay = 0; |
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115 | end |
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116 | ModulationMethod = 'bipolar'; |
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117 | StructOutputFlag = 0; |
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118 | NumericOutputFlag = 0; |
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119 | ArchiveFlag = 0; |
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120 | FileName = -1; |
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121 | if nargout == 0 |
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122 | DisplayFlag = 1; |
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123 | else |
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124 | DisplayFlag = 0; |
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125 | end |
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126 | ModeFlag = {}; % model, online, manual, or '' for default mode |
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127 | UnitsFlag = ''; % hardware, physics, or '' for default units |
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128 | MCF = []; |
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129 | |
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130 | |
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131 | InputFlags = {}; |
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132 | for i = length(varargin):-1:1 |
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133 | if isstruct(varargin{i}) |
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134 | % Ignore structures |
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135 | elseif iscell(varargin{i}) |
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136 | % Ignore cells |
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137 | elseif strcmpi(varargin{i},'struct') |
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138 | StructOutputFlag = 1; |
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139 | varargin(i) = []; |
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140 | elseif strcmpi(varargin{i},'numeric') |
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141 | NumericOutputFlag = 1; |
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142 | StructOutputFlag = 0; |
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143 | varargin(i) = []; |
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144 | elseif strcmpi(varargin{i},'archive') |
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145 | ArchiveFlag = 1; |
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146 | if length(varargin) > i |
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147 | % Look for a filename as the next input |
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148 | if ischar(varargin{i+1}) |
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149 | FileName = varargin{i+1}; |
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150 | varargin(i+1) = []; |
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151 | end |
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152 | end |
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153 | varargin(i) = []; |
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154 | elseif strcmpi(varargin{i},'noarchive') |
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155 | ArchiveFlag = 0; |
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156 | varargin(i) = []; |
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157 | elseif strcmpi(varargin{i},'Display') |
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158 | DisplayFlag = 1; |
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159 | varargin(i) = []; |
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160 | elseif strcmpi(varargin{i},'NoDisplay') |
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161 | DisplayFlag = 0; |
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162 | varargin(i) = []; |
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163 | elseif strcmpi(varargin{i},'bipolar') |
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164 | ModulationMethod = 'bipolar'; |
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165 | varargin(i) = []; |
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166 | elseif strcmpi(varargin{i},'unipolar') |
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167 | ModulationMethod = 'unipolar'; |
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168 | varargin(i) = []; |
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169 | elseif strcmpi(varargin{i},'eta') || strcmpi(varargin{i},'physics') |
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170 | UnitsFlag = 'Physics'; |
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171 | varargin(i) = []; |
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172 | if length(varargin) >= i |
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173 | if isnumeric(varargin{i}) |
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174 | MCF = varargin{i}; |
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175 | varargin(i) = []; |
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176 | end |
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177 | end |
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178 | elseif strcmpi(varargin{i},'hardware') |
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179 | UnitsFlag = varargin{i}; |
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180 | varargin(i) = []; |
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181 | if length(varargin) >= i |
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182 | if isnumeric(varargin{i}) |
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183 | MCF = varargin{i}; |
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184 | varargin(i) = []; |
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185 | end |
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186 | end |
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187 | elseif strcmpi(varargin{i},'simulator') || strcmpi(varargin{i},'model') |
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188 | ModeFlag = varargin(i); |
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189 | varargin(i) = []; |
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190 | elseif strcmpi(varargin{i},'online') |
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191 | ModeFlag = varargin(i); |
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192 | varargin(i) = []; |
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193 | elseif strcmpi(varargin{i},'manual') |
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194 | ModeFlag = varargin(i); |
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195 | varargin(i) = []; |
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196 | end |
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197 | end |
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198 | |
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199 | |
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200 | % Look for DeltaRF input |
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201 | if length(varargin) >= 1 |
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202 | if isnumeric(varargin{1}) |
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203 | DeltaRF = varargin{1}; |
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204 | varargin(1) = []; |
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205 | else |
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206 | DeltaRF = []; |
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207 | end |
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208 | else |
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209 | DeltaRF = []; |
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210 | end |
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211 | |
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212 | % Look for BPMx family info |
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213 | if length(varargin) >= 1 |
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214 | if ischar(varargin{1}) |
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215 | BPMxFamily = varargin{1}; |
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216 | varargin(1) = []; |
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217 | if length(varargin) >= 1 |
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218 | if isnumeric(varargin{1}) |
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219 | BPMxList = varargin{1}; |
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220 | varargin(1) = []; |
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221 | end |
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222 | end |
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223 | elseif isnumeric(varargin{1}) |
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224 | BPMxList = varargin{1}; |
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225 | varargin(1) = []; |
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226 | elseif isstruct(varargin{1}) |
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227 | BPMxFamily = varargin{1}.FamilyName; |
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228 | BPMxList = varargin{1}.DeviceList; |
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229 | if isempty(UnitsFlag) |
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230 | UnitsFlag = varargin{1}.Units; |
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231 | end |
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232 | if ~NumericOutputFlag |
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233 | % Only change StructOutputFlag if 'numeric' is not on the input line |
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234 | StructOutputFlag = 1; |
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235 | end |
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236 | varargin(1) = []; |
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237 | end |
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238 | end |
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239 | |
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240 | % Look for BPMy family info |
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241 | if length(varargin) >= 1 |
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242 | if ischar(varargin{1}) |
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243 | BPMyFamily = varargin{1}; |
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244 | varargin(1) = []; |
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245 | if length(varargin) >= 1 |
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246 | if isnumeric(varargin{1}) |
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247 | BPMyList = varargin{1}; |
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248 | varargin(1) = []; |
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249 | end |
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250 | end |
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251 | elseif isnumeric(varargin{1}) |
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252 | BPMyList = varargin{1}; |
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253 | varargin(1) = []; |
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254 | elseif isstruct(varargin{1}) |
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255 | BPMyFamily = varargin{1}.FamilyName; |
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256 | BPMyList = varargin{1}.DeviceList; |
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257 | if isempty(UnitsFlag) |
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258 | UnitsFlag = varargin{1}.Units; |
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259 | end |
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260 | if ~NumericOutputFlag |
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261 | % Only change StructOutputFlag if 'numeric' is not on the input line |
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262 | StructOutputFlag = 1; |
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263 | end |
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264 | varargin(1) = []; |
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265 | end |
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266 | end |
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267 | |
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268 | % Look for WaitFlag input |
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269 | if length(varargin) >= 1 |
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270 | if isnumeric(varargin{1}) && ~isempty(varargin{1}) |
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271 | WaitFlag = varargin{1}; |
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272 | varargin(1) = []; |
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273 | end |
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274 | end |
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275 | % End of input parsing |
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276 | |
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277 | |
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278 | % Archive data structure |
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279 | if ArchiveFlag |
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280 | if isempty(FileName) |
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281 | FileName = appendtimestamp(getfamilydata('Default', 'DispArchiveFile')); |
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282 | DirectoryName = getfamilydata('Directory','DispData'); |
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283 | if isempty(DirectoryName) |
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284 | DirectoryName = [getfamilydata('Directory','DataRoot') 'Dispersion', filesep]; |
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285 | else |
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286 | % Make sure default directory exists |
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287 | DirStart = pwd; |
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288 | [DirectoryName, ErrorFlag] = gotodirectory(DirectoryName); |
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289 | cd(DirStart); |
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290 | end |
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291 | [FileName, DirectoryName] = uiputfile('*.mat', 'Select Dispersion File', [DirectoryName FileName]); |
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292 | drawnow; |
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293 | if FileName == 0 |
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294 | ArchiveFlag = 0; |
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295 | disp(' Dispersion measurement canceled.'); |
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296 | Dx=[]; Dy=[]; FileName=''; |
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297 | return |
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298 | end |
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299 | FileName = [DirectoryName, FileName]; |
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300 | elseif FileName == -1 |
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301 | FileName = appendtimestamp(getfamilydata('Default', 'DispArchiveFile')); |
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302 | DirectoryName = getfamilydata('Directory','DispData'); |
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303 | if isempty(DirectoryName) |
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304 | DirectoryName = [getfamilydata('Directory','DataRoot') 'Dispersion', filesep]; |
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305 | end |
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306 | FileName = [DirectoryName, FileName]; |
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307 | end |
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308 | end |
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309 | |
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310 | |
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311 | % Get the input units |
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312 | if isempty(UnitsFlag) |
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313 | RFUnitsInput = getfamilydata('RF','Setpoint','Units'); |
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314 | UnitsFlag = RFUnitsInput; |
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315 | else |
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316 | RFUnitsInput = UnitsFlag; |
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317 | end |
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318 | |
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319 | |
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320 | % Get DeltaRF in Hardware units |
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321 | RFHWUnits = getfamilydata('RF','Setpoint','HWUnits'); |
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322 | |
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323 | |
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324 | % Make sure DeltaRF is in hardware units |
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325 | if isempty(DeltaRF) || ~isnumeric(DeltaRF) |
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326 | % Get the default from the AD is in Hardware units |
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327 | DeltaRF = getfamilydata('DeltaRFDisp'); |
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328 | |
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329 | % If the default is not in the AD |
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330 | if isempty(DeltaRF) |
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331 | % Here is the second level default |
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332 | DeltaRF = getrf('Hardware', ModeFlag{:}) * getmcf * .002; % .2% energy change |
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333 | end |
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334 | |
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335 | else |
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336 | if strcmpi(UnitsFlag, 'Physics') |
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337 | % Change to hardware |
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338 | RFUnitsInput = UnitsFlag; |
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339 | DeltaRF = physics2hw('RF', 'Setpoint', DeltaRF, []); |
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340 | end |
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341 | end |
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342 | |
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343 | % DeltaRF must be in hardware units at this point |
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344 | |
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345 | |
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346 | % Use the AT model directly (measdisp or modeldisp) |
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347 | if ~isempty(ModeFlag) && strcmpi(ModeFlag{1}, 'Model') |
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348 | % Measure in hardware and convert later |
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349 | if 1 |
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350 | % Simulator mode (just so that the BPM gain or rotation errors are in the dispersion) |
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351 | [HorDisp, VertDisp] = measdisp(DeltaRF, BPMxFamily, BPMxList, BPMyFamily, BPMyList, WaitFlag, ModulationMethod, 'Simulator', 'Struct', 'Hardware'); |
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352 | |
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353 | else |
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354 | % Use the AT Model (no BPM gain or rotation errors) |
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355 | [HorDisp, VertDisp] = modeldisp(DeltaRF, BPMxFamily, BPMxList, BPMyFamily, BPMyList, ModulationMethod, 'Struct', 'Hardware'); |
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356 | end |
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357 | |
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358 | % This might not always work (it's only a problem if the first input family is in the vertical plane) |
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359 | if ~isempty(strfind(lower(BPMxFamily),'z')) || ~isempty(strfind(lower(BPMxFamily),'v')) |
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360 | d(1) = VertDisp; |
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361 | d(2) = HorDisp; |
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362 | d(1).Monitor = getam(BPMyFamily, BPMyList, 'Model', 'Struct', 'Hardware'); |
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363 | d(2).Monitor = getam(BPMxFamily, BPMxList, 'Model', 'Struct', 'Hardware'); |
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364 | else |
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365 | d(1) = HorDisp; |
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366 | d(2) = VertDisp; |
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367 | d(1).Monitor = getam(BPMxFamily, BPMxList, 'Model', 'Struct', 'Hardware'); |
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368 | d(2).Monitor = getam(BPMyFamily, BPMyList, 'Model', 'Struct', 'Hardware'); |
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369 | end |
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370 | |
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371 | if isempty(MCF) |
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372 | MCF = getmcf('Model'); |
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373 | end |
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374 | |
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375 | d(1).Actuator = getrf(d(1).Actuator.UnitsString, 'Model', 'Struct', 'Hardware'); |
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376 | d(2).Actuator = d(1).Actuator; |
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377 | |
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378 | else |
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379 | % Online & Simulation Modes |
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380 | |
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381 | % Check DeltaRF for resonable values |
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382 | DeltaRFphysics = hw2physics('RF', 'Setpoint', DeltaRF, []); |
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383 | if DeltaRFphysics > 15000; % Hz |
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384 | tmp = questdlg(sprintf('%f Hz is a large RF change. Do you want to continue?', DeltaRFphysics),'Dispersion Measurement','YES','NO','YES'); |
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385 | if strcmp(tmp,'NO') |
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386 | Dx=[]; Dy=[]; |
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387 | return |
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388 | end |
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389 | end |
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390 | |
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391 | % Dispersion can be found using the response matrix generation program |
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392 | if DisplayFlag |
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393 | %DispRespMat = measrespmat({getam(BPMxFamily,BPMxList,'Struct','Hardware',ModeFlag), getam(BPMyFamily,BPMyList,'Struct',ModeFlag)}, getsp('RF','Struct',ModeFlag), DeltaRF, ModulationMethod, WaitFlag, ExtraDelay, 'Struct', 'Display', 'Hardware', ModeFlag{:}); |
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394 | DispRespMat = measrespmat({BPMxFamily,BPMyFamily}, {BPMxList,BPMyList}, 'RF', [], DeltaRF, ModulationMethod, WaitFlag, ExtraDelay, 'Struct', 'Display', 'Hardware', ModeFlag{:}); |
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395 | else |
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396 | %DispRespMat = measrespmat({getam(BPMxFamily,BPMxList,'Struct','Hardware',ModeFlag), getam(BPMyFamily,BPMyList,'Struct',ModeFlag)}, getsp('RF','Struct',ModeFlag), DeltaRF, ModulationMethod, WaitFlag, ExtraDelay, 'Struct', 'NoDisplay', 'Hardware', ModeFlag{:}); |
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397 | DispRespMat = measrespmat({BPMxFamily,BPMyFamily}, {BPMxList,BPMyList}, 'RF', [], DeltaRF, ModulationMethod, WaitFlag, ExtraDelay, 'Struct', 'NoDisplay', 'Hardware', ModeFlag{:}); |
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398 | end |
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399 | |
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400 | d(1) = DispRespMat{1}; |
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401 | d(2) = DispRespMat{2}; |
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402 | |
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403 | |
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404 | % For multiple RF cavities in the model it's possible to get multiple columns in the response matrix |
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405 | if size(d(1).Data,2) > 1 |
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406 | % More Actuators means the RF was implemented as multiple cavities and not 1 RF frequency |
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407 | % This is really not recommended!!! |
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408 | d(1).Data = sum(d(1).Data,2); |
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409 | d(1).Actuator.Data = d(1).Actuator.Data(1); |
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410 | d(1).Actuator.DeviceList = d(1).Actuator.DeviceList(1); |
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411 | d(1).Actuator.Status = d(1).Actuator.Status(1); |
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412 | d(1).Actuator.DataTime = d(1).Actuator.DataTime(1); |
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413 | |
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414 | d(2).Data = sum(d(2).Data,2); |
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415 | d(2).Actuator.Data = d(2).Actuator.Data(1); |
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416 | d(2).Actuator.DeviceList = d(2).Actuator.DeviceList(1); |
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417 | d(2).Actuator.Status = d(2).Actuator.Status(1); |
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418 | d(2).Actuator.DataTime = d(2).Actuator.DataTime(1); |
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419 | |
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420 | DeltaRFphysics = DeltaRFphysics(1); |
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421 | end |
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422 | |
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423 | |
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424 | % Get the momentum compaction factor in if was not on the input line |
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425 | if isempty(MCF) |
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426 | MCF = getmcf(ModeFlag); |
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427 | end |
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428 | end |
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429 | |
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430 | |
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431 | d(1).FamilyName = 'DispersionX'; |
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432 | d(2).FamilyName = 'DispersionY'; |
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433 | d(1).GeV = getenergy(ModeFlag{:}); |
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434 | d(2).GeV = d(1).GeV; |
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435 | |
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436 | |
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437 | for i = 1:2 |
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438 | d(i).MCF = MCF; |
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439 | d(i).dp = -DeltaRF / (d(i).Actuator.Data * MCF); |
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440 | d(i).Mode = d(i).Actuator.Mode; |
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441 | d(i).Units = d(i).Actuator.Units; |
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442 | d(i).UnitsString = [d(i).Monitor.UnitsString,'/',d(i).Actuator.UnitsString]; |
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443 | d(i).OperationalMode = getfamilydata('OperationalMode'); |
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444 | d(i).DataDescriptor = 'Dispersion'; |
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445 | d(i).CreatedBy = 'measdisp'; |
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446 | end |
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447 | |
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448 | |
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449 | % Final units conversion |
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450 | if strcmpi(RFUnitsInput, 'Physics') |
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451 | d = hw2physics(d); |
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452 | end |
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453 | |
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454 | |
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455 | % Plot if no output |
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456 | if DisplayFlag |
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457 | %figure; |
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458 | if strcmpi(d(1).Mode,'Online') && CouplingFlag |
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459 | % Take into account coupling and gain for the BPMs |
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460 | Data = family2coupling(d(1).Monitor.DeviceList); |
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461 | for ik =1:size(d(1).Monitor.DeviceList,1), |
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462 | eta = Data.Cinv{ik}(:,:)*[d(1).Monitor.Data(ik); d(2).Monitor.Data(ik)]; |
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463 | d(1).Monitor.Data(ik) = eta(1); d(2).Monitor.Data(ik) = eta(2); |
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464 | end |
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465 | end |
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466 | plotdisp(d(1),d(2)); |
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467 | end |
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468 | |
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469 | % Archive data structure |
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470 | if ArchiveFlag |
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471 | % If the filename contains a directory then make sure it exists |
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472 | [DirectoryName, FileName, Ext] = fileparts(FileName); |
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473 | DirStart = pwd; |
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474 | [DirectoryName, ErrorFlag] = gotodirectory(DirectoryName); |
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475 | BPMxDisp = d(1); |
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476 | BPMyDisp = d(2); |
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477 | save(FileName, 'BPMxDisp', 'BPMyDisp'); |
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478 | if DisplayFlag |
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479 | fprintf(' Dispersion data saved to %s.mat\n', [DirectoryName FileName]); |
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480 | if ErrorFlag |
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481 | fprintf(' Warning: %s was not the desired directory\n', DirectoryName); |
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482 | end |
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483 | end |
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484 | cd(DirStart); |
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485 | FileName = [DirectoryName, FileName, '.mat']; |
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486 | end |
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487 | if FileName == -1 |
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488 | FileName = ''; |
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489 | end |
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490 | |
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491 | |
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492 | % Output |
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493 | if StructOutputFlag |
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494 | Dx = d(1); |
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495 | Dy = d(2); |
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496 | else |
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497 | Dx = d(1).Data; |
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498 | Dy = d(2).Data; |
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499 | end |
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500 | |
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501 | |
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502 | if DisplayFlag |
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503 | fprintf(' Dispersion measurement complete\n'); |
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504 | end |
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505 | |
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506 | |
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507 | |
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