cross [WP][FIX]: assign correct spectrum

program operates correctly in convolution mode; though results are not yet as
expected in cross-correlation mode

src/ts/wf/cross.cc

@@ -243,11 +243,11 @@ FourierProcessor::Tspectrum
   FourierProcessor::Tspectrum result(sref.size());
   result=FourierProcessor::Tspectrum::Tvalue(0.);
   aff::Browser<FourierProcessor::Tspectrum::Tcoc> BR(sref);
-  aff::Browser<FourierProcessor::Tspectrum::Tcoc> BD(sref);
+  aff::Browser<FourierProcessor::Tspectrum::Tcoc> BD(ssig);
   aff::Iterator<FourierProcessor::Tspectrum> IR(result);
   while (BR.valid() && BD.valid() && IR.valid())
   {
-    *IR = (*BR) * (*BD);
+    (*IR) = ((*BR) * (*BD));
     ++IR;
     ++BR;
     ++BD;
@@ -268,7 +268,7 @@ FourierProcessor::Tspectrum
   FourierProcessor::Tspectrum result(sref.size());
   result=FourierProcessor::Tspectrum::Tvalue(0.);
   aff::Browser<FourierProcessor::Tspectrum::Tcoc> BR(sref);
-  aff::Browser<FourierProcessor::Tspectrum::Tcoc> BD(sref);
+  aff::Browser<FourierProcessor::Tspectrum::Tcoc> BD(ssig);
   aff::Iterator<FourierProcessor::Tspectrum> IR(result);
   while (BR.valid() && BD.valid() && IR.valid())
   {
@@ -548,8 +548,7 @@ int main(int iargc, char* argv[])
             TFXX_debug(opt.debug,
                        "main()", "prepare FFTreference "
                        << TFXX_value(reference.header.wid2().dt));
-            Tts::Tdttimeseries dtreference(reference,
-                                           reference.header.wid2().dt);
+            Tts::Tdttimeseries dtreference(reference);
             TFXX_debug(opt.debug,
                        "main()", TFXX_value(dtreference.header.dt));
             FFTreference.setseries(dtreference); 
@@ -569,7 +568,7 @@ int main(int iargc, char* argv[])
           { 
             TFXX_debug(opt.debug,
                        "main()", "prepare FFTdata");
-            Tts::Tdttimeseries dtdata(data, data.header.wid2().dt);
+            Tts::Tdttimeseries dtdata(data);
             FFTdata.setseries(dtdata); 
           }
           if (opt.convolve)