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More into q65 module.

This commit is contained in:
Joe Taylor 2021-01-13 11:21:59 -05:00
parent df8ad7a8d9
commit 18100fd259
4 changed files with 9 additions and 9 deletions
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8
lib/q65_decode.f90
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@ -62,7 +62,7 @@ contains
complex, allocatable :: c0(:) !Analytic signal, 6000 Sa/s
idec=-1
mode65=2**nsubmode
mode_q65=2**nsubmode
npts=ntrperiod*12000
nfft1=ntrperiod*12000
nfft2=ntrperiod*6000
@ -89,7 +89,7 @@ contains
df1=12000.0/nfft1
this%callback => callback
nFadingModel=1
ibwa=max(1,int(1.8*log(baud*mode65)) + 2)
ibwa=max(1,int(1.8*log(baud*mode_q65)) + 2)
ibwb=min(10,ibwa+4)
if(iand(ndepth,3).eq.3) then
ibwa=max(1,ibwa-1)
@ -101,7 +101,7 @@ contains
dgen=0
call q65_enc(dgen,codewords) !Initialize the Q65 codec
call timer('sync_q65',0)
call q65_sync(nutc,iwave,ntrperiod,mode65, &
call q65_sync(nutc,iwave,ntrperiod, &
nfqso,ntol,ndepth,lclearave,emedelay,xdt,f0,snr1,width,dat4, &
snr2,idec)
call timer('sync_q65',1)
@ -150,7 +150,7 @@ contains
endif
call timer('q65loops',0)
call q65_loops(c00,npts/2,nsps/2,mode65,nsubmode,ndepth,jpk0, &
call q65_loops(c00,npts/2,nsps/2,nsubmode,ndepth,jpk0, &
xdt,f0,iaptype,xdt1,f1,snr2,dat4,idec)
call timer('q65loops',1)
if(idec.gt.0) go to 100 !Successful decode, we're done

2
lib/qra/q65/q65.f90
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@ -9,7 +9,7 @@ module q65
integer,dimension(22) :: isync = (/1,9,12,13,15,22,23,26,27,33,35, &
38,46,50,55,60,62,66,69,74,76,85/)
integer codewords(63,206)
integer navg,ibwa,ibwb,ncw,nsps
integer navg,ibwa,ibwb,ncw,nsps,mode_q65
real,allocatable,save :: s1a(:,:) !Cumulative symbol spectra
real sync(85) !sync vector

2
lib/qra/q65/q65_loops.f90
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@ -1,4 +1,4 @@
subroutine q65_loops(c00,npts2,nsps2,mode_q65,nsubmode,ndepth,jpk0, &
subroutine q65_loops(c00,npts2,nsps2,nsubmode,ndepth,jpk0, &
xdt0,f0,iaptype,xdt1,f1,snr2,dat4,idec)
use packjt77

6
lib/qra/q65/q65_sync.f90
View File

@ -1,4 +1,4 @@
subroutine q65_sync(nutc,iwave,ntrperiod,mode_q65, &
subroutine q65_sync(nutc,iwave,ntrperiod, &
nfqso,ntol,ndepth,lclearave,emedelay,xdt,f0,snr1,width,dat4,snr2,idec)
! Detect and align with the Q65 sync vector, returning time and frequency
@ -102,7 +102,7 @@ subroutine q65_sync(nutc,iwave,ntrperiod,mode_q65, &
! Try list decoding via "Deep Likelihood".
call timer('list_dec',0)
call q65_dec_q3(df,s1,iz,jz,ia, &
mode_q65,lag1,lag2,i0,j0,ccf,ccf1,ccf2,ia2,s3,LL,snr2, &
lag1,lag2,i0,j0,ccf,ccf1,ccf2,ia2,s3,LL,snr2, &
dat4,idec,decoded)
call timer('list_dec',1)
endif
@ -215,7 +215,7 @@ subroutine q65_symspec(iwave,nmax,iz,jz,istep,nsmo,s1)
end subroutine q65_symspec
subroutine q65_dec_q3(df,s1,iz,jz,ia, &
mode_q65,lag1,lag2,i0,j0,ccf,ccf1,ccf2,ia2,s3,LL,snr2, &
lag1,lag2,i0,j0,ccf,ccf1,ccf2,ia2,s3,LL,snr2, &
dat4,idec,decoded)
use q65