Optimize calling the QMAP decoder for different sub-sequence tasks.

qmap/libqmap/CMakeLists.txt

@@ -6,7 +6,7 @@ set (libq65_FSRCS
   astro0.f90
   astrosub.f90
   cfom.f90
-#  chkstat.f90
+  chkstat.f90
   dcoord.f90
   decode0.f90
   dot.f90

qmap/libqmap/chkstat.f90

@@ -1,23 +1,22 @@
-subroutine chkstat(dd,ihsym,bSkip)
+subroutine chkstat(dd,nhsym,dbdiff)
 
   real dd(2,5760000)
-  real power(60)
-  logical*1 bSkip
 
+  sq0=0.
+  sq1=0.
   k=0
   do i=1,60
      sq=0.
      do j=1,96000
         k=k+1
         sq=sq + dd(1,k)*dd(1,k) + dd(2,k)*dd(2,k)
-     enddo
-     power(i)=sq/(2.0*96000.0)
+     enddo 
+     if(i.ge.12 .and. i.le.24) sq0=sq0+sq
+     if(i.ge.42 .and. i.le.54) sq1=sq1+sq
   enddo
-  bSkip=.false.
-  n1=count(power(1:30).lt.15.0)
-  n2=count(power(31:60).lt.15.0)
-  if(ihsym.le.200 .and. n1.gt.15) bSkip=.true.
-  if(ihsym.gt.200 .and. n2.gt.15) bSkip=.true.
-
+  db0=db(1.0+sq0)
+  db1=db(1.0+sq1)
+  dbdiff=db0-db1
+  
   return
 end subroutine chkstat

qmap/libqmap/decode0.f90

@@ -43,9 +43,9 @@ subroutine decode0(dd,ss,savg)
   hisgrid0=hisgrid
 
   call timer('qmapa   ',0)
-  call qmapa(dd,ss,savg,newdat,nutc,fcenter,ntol,nfa,nfb,           &
-       mousedf,mousefqso,nagain,nfshift,max_drift,offset,           &
-       nfcal,mycall,hiscall,hisgrid,nfsample,nmode,ndepth,          &
+  call qmapa(dd,ss,savg,newdat,nutc,fcenter,ntol,nfa,nfb,                  &
+       mousedf,mousefqso,nagain,ntx30a,ntx30b,nfshift,max_drift,offset,    &
+       nfcal,mycall,hiscall,hisgrid,nfsample,nmode,ndepth,                 &
        datetime,ndop00,fselected,bAlso30,nhsym,NCFOM)
   call timer('qmapa   ',1)
 

qmap/libqmap/getcand2.f90

@@ -1,5 +1,5 @@
-subroutine getcand2(ss,savg0,nts_q65,nagain,nhsym,ntol,f0_selected,    &
-     bAlso30,cand,ncand)
+subroutine getcand2(ss,savg0,nts_q65,nagain,nhsym,ntx30a,ntx30b,     &
+     ntol,f0_selected,bAlso30,cand,ncand)
 
 ! Get candidates for Q65 decodes, based on presence of sync tone.
   
@@ -74,7 +74,7 @@ subroutine getcand2(ss,savg0,nts_q65,nagain,nhsym,ntol,f0_selected,    &
      if(.not.bAlso30) cycle
      ntrperiod=30
      
-     if(nhsym.le.200) then
+     if(nhsym.le.200 .and. ntx30a.le.5) then
         call q65_sync(ss,i0,nts_q65,ntrperiod,iseq,sync_ok,snr_sync,xdt)
         if(sync_ok) then
 ! Sync tone is present, we have a candidate for decoding
@@ -92,7 +92,7 @@ subroutine getcand2(ss,savg0,nts_q65,nagain,nhsym,ntol,f0_selected,    &
      endif
 
      iseq=1
-     if(nhsym.ge.330) then
+     if(nhsym.ge.330 .and. ntx30b.le.5) then
         call q65_sync(ss,i0,nts_q65,ntrperiod,iseq,sync_ok,snr_sync,xdt)
         if(sync_ok) then
 ! Sync tone is present, we have a candidate for decoding

qmap/libqmap/q65c.f90

@@ -12,7 +12,7 @@ subroutine q65c(itimer)
   real*8 fcenter
   integer nparams0(NJUNK+3),nparams(NJUNK+3)
   logical first
-  logical*1 bAlso30,bSkip
+  logical*1 bAlso30
   character*12 mycall,hiscall
   character*6 mygrid,hisgrid
   character*20 datetime
@@ -41,21 +41,28 @@ subroutine q65c(itimer)
   npatience=1
   newdat=1                          !Always on ??
 
+  call chkstat(dd,nhsym,dbdiff)
+!  if(nhsym.eq.390) write(*,3001) nutc,nhsym,dbdiff
+!3001 format(i4.4,i6,f7.1)
+
+  if(dbdiff.gt.5.0) ntx30b=30
+  if(dbdiff.lt.-5.0) ntx30a=30
+
   if(ntx30a.gt.5) then
      dd(1:2,1:30*96000)=0.
      ss(1:200,1:NFFT)=0.
+     do i=1,NFFT
+        savg(i)=sum(ss(201:400,i))
+     enddo
   endif
   if(ntx30b.gt.5) then
      dd(1:2,30*96000+1:60*96000)=0.
      ss(201:400,1:NFFT)=0.
+     do i=1,NFFT
+        savg(i)=sum(ss(1:200,i))
+     enddo
   endif
 
-!  call chkstat(dd,nhsym,bSkip)
-!  if(bSkip .and. nagain.eq.0) then
-!     print*,'A',nhsym,ntx30a,ntx30b,ntx60,junk1,junk2,bAlso30
-!     return
-!  endif
-
   call timer('decode0 ',0)
   call decode0(dd,ss,savg)
   call timer('decode0 ',1)

qmap/libqmap/qmapa.f90

@@ -1,7 +1,7 @@
 subroutine qmapa(dd,ss,savg,newdat,nutc,fcenter,ntol,nfa,nfb,         &
-     mousedf,mousefqso,nagain,nfshift,max_drift,offset,nfcal,mycall,  &
-     hiscall,hisgrid,nfsample,nBaseSubmode,ndepth,datetime,ndop00,    &
-     fselected,bAlso30,nhsym,nCFOM)
+     mousedf,mousefqso,nagain,ntx30a,ntx30b,nfshift,max_drift,offset, &
+     nfcal,mycall,hiscall,hisgrid,nfsample,nBaseSubmode,ndepth,       &
+     datetime,ndop00,fselected,bAlso30,nhsym,nCFOM)
 
 !  Processes timf2 data received from Linrad to find and decode Q65 signals.
 
@@ -32,7 +32,7 @@ subroutine qmapa(dd,ss,savg,newdat,nutc,fcenter,ntol,nfa,nfb,         &
   common/decodes/ndecodes,ncand,nQDecoderDone,nWDecoderBusy,              &
        nWTransmitting,result(50)
   save
-
+  
   tsec0=sec_midn()
   if(nagain.eq.1) ndepth=3            !Use full depth for click-to-decode
   nkhz_center=nint(1000.0*(fcenter-int(fcenter)))
@@ -44,8 +44,8 @@ subroutine qmapa(dd,ss,savg,newdat,nutc,fcenter,ntol,nfa,nfb,         &
 
   call timer('get_cand',0)
 ! Get a list of decoding candidates
-  call getcand2(ss,savg,nts_q65,nagain,nhsym,ntol,f0_selected,bAlso30,  &
-       cand,ncand)
+  call getcand2(ss,savg,nts_q65,nagain,nhsym,ntx30a,ntx30b,ntol,     &
+       f0_selected,bAlso30,cand,ncand)
   call timer('get_cand',1)
 
   nwrite_q65=0