Changeset 3191 in Sophya for trunk/Cosmo/RadioBeam/mbeamcyl.cc

Timestamp:

Mar 19, 2007, 9:29:05 AM (19 years ago)

Author:

legoff

Message:

Cylinders have different x positions (NS).
This is taken into account in the signal phase shift
and in the exp() term when combining cylinders.
We can have more bins in x than antennas in one cylinder
to see the gain in resolution along x due to several cylinders at different x

File:

• trunk/Cosmo/RadioBeam/mbeamcyl.cc (modified) (3 diffs)

trunk/Cosmo/RadioBeam/mbeamcyl.cc

@@ -7 +7 @@
 //=================================================
 
-MultiBeamCyl::MultiBeamCyl(int nr, int ns, double posy)
+MultiBeamCyl::MultiBeamCyl(int nr, int ns, double posx, double posy)
   : texact(ns) , tjitt(ns) , toffset(nr) ,
     signal(ns), sigjitt(ns) , gain(nr)
@@ -14 +14 @@
   NS = ns;
   posY = posy;
+  posX = posx;
 
   SetPrintLevel(0);
@@ -87 +88 @@
     // pas celle apres shift (freq-reduite)
     // lambda = c T = c/freq avec c = 1, dephasage = 2*pi*num*Da*sin(ang)/lambda
-    double dephasage = num*Da*sin(src->angX(is)) + posY*sin(src->angY(is)) ;
+    double dephasage = (posX+num*Da)*sin(src->angX(is)) + 
+                                posY*sin(src->angY(is)) ;
     dephasage *= (2*M_PI*(fr+freq0));
     // On ajoute alors la phase propre de chaque source