w4kek/WSJT-X
1
0
Fork 0
mirror of https://github.com/saitohirga/WSJT-X.git synced 2024-11-15 08:31:57 -05:00
Code Issues Packages Projects Releases Wiki Activity

Radionalize the reporting of idec values.

Browse Source
This commit is contained in:
Joe Taylor 2021-01-14 13:13:40 -05:00
parent 0abdff0216
commit fca6d482f7
4 changed files with 73 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/decoder.f90
View File

@ -776,18 +776,13 @@ contains
character*3 cflags
cflags=' '
if(idec.gt.0) then
if(idec.ge.0) then
iaptype=idec
navg=0
if(idec.ge.100) then
iaptype=idec/100
navg=mod(idec,100)
endif
if(iaptype.eq.1) then
iaptype=3
else
iaptype=iaptype-2
endif
cflags='q '
write(cflags(2:2),'(i1)') iaptype
if(navg.ge.2) write(cflags(3:3),'(i1)') navg

20
lib/q65_decode.f90
View File

@ -29,7 +29,7 @@ contains
ntol,ndepth,lclearave,emedelay,mycall,hiscall,hisgrid,nQSOprogress, &
ncontest,lapcqonly)
! Decodes Q65 signals
! Top-level routine that organizes the decoding of Q65 signals
! Input: iwave Raw data, i*2
! nutc UTC for time-tagging the decode
! ntrperiod T/R sequence length (s)
@ -37,6 +37,11 @@ contains
! nfqso Target signal frequency (Hz)
! ntol Search range around nfqso (Hz)
! ndepth Optional decoding level
! lclearave Flag to clear the message-averaging arrays
! emedelay Sync search extended to cover EME delays
! nQSOprogress Auto-sequencing state for the present QSO
! ncontest Supported contest type
! lapcqonly Flag to use AP only for CQ calls
! Output: sent to the callback routine for display to user
use timer_module, only: timer
@ -61,6 +66,7 @@ contains
complex, allocatable :: c00(:) !Analytic signal, 6000 Sa/s
complex, allocatable :: c0(:) !Analytic signal, 6000 Sa/s
! Start by setting some parameters and allocating storage for large arrays
idec=-1
mode_q65=2**nsubmode
npts=ntrperiod*12000
@ -101,10 +107,13 @@ contains
dgen=0
call q65_enc(dgen,codewords) !Initialize the Q65 codec
call timer('q65_dec0',0)
call q65_dec0(nutc,iwave,ntrperiod, &
nfqso,ntol,ndepth,lclearave,emedelay,xdt,f0,snr1,width,dat4, &
snr2,idec)
! Call top-level routine in q65 module: establish sync and try for a q3 decode.
call q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
emedelay,xdt,f0,snr1,width,dat4,snr2,idec)
call timer('q65_dec0',1)
print*,'AAA',idec
if(idec.ge.0) then
xdt1=xdt !We have a list-decode result
f1=f0
@ -166,7 +175,8 @@ contains
endif
100 decoded=' '
if(idec.gt.0) then
print*,'BBB',idec
if(idec.ge.0) then
! ------------------------------------------------------
! idec Meaning

102
lib/qra/q65/q65.f90
View File

@ -20,17 +20,27 @@ contains
subroutine q65_dec0(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
! offsets and SNR estimate.
! Top-level routine in q65 module
! Input: iwave(0:nmax-1) Raw data
! mode_q65 Tone spacing 1 2 4 8 16 (A-E)
! nsps Samples per symbol at 12000 Sa/s
! ntrperiod T/R sequence length (s)
! nfqso Target frequency (Hz)
! ntol Search range around nfqso (Hz)
! ndepth Requested decoding depth
! lclearave Flag to clear the accumulating array
! emedelay Extra delay for EME signals
! Output: xdt Time offset from nominal (s)
! f0 Frequency of sync tone
! snr1 Relative SNR of sync signal
! width Estimated Doppler spread
! dat4(13) Decoded message as 13 six-bit integers
! snr2 Estimated SNR of decoded signal
! idec Flag for decing results
! -1 No decode
! 0 No AP
! 1 "CQ ? ?"
! 2 "Mycall ? ?"
! 3 "MyCall HisCall ?"
use packjt77
use timer_module, only: timer
@ -48,7 +58,9 @@ subroutine q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
data first/.true./
save first
if(nutc+ndepth.eq.-999) stop
if(nutc+ndepth.eq.-999) stop !Silence compiler warnings
! Set seom parameters and allocate storage for large arrays
irc=-2
idec=-1
snr1=0.
@ -65,7 +77,12 @@ subroutine q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
ia2=max(ia,10*mode_q65,nint(100.0/df))
nsmo=int(0.7*mode_q65*mode_q65)
if(nsmo.lt.1) nsmo=1
! nsmo=1 !### TEMPORARY ###
if(first) then !Generate the sync vector
sync=-22.0/63.0 !Sync tone OFF
do k=1,22
sync(isync(k))=1.0 !Sync tone ON
enddo
endif
allocate(s1(iz,jz))
allocate(s3(-64:LL-65,63))
@ -79,32 +96,6 @@ subroutine q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
navg=0
LL0=LL
endif
s3=0.
if(first) then !Generate the sync vector
sync=-22.0/63.0 !Sync tone OFF
do k=1,22
sync(isync(k))=1.0 !Sync tone ON
enddo
endif
call timer('s1 ',0)
! Compute spectra with symbol length and NSTEP time bins per symbol.
call q65_symspec(iwave,ntrperiod*12000,iz,jz,s1)
call timer('s1 ',1)
i0=nint(nfqso/df) !Target QSO frequency
if(i0-64.lt.1 .or. i0-65+LL.gt.iz) go to 900 !Frequency out of range
call pctile(s1(i0-64:i0-65+LL,1:jz),LL*jz,40,base)
s1=s1/base
! Apply fast AGC
s1max=20.0 !Empirical choice
do j=1,jz !### Maybe wrong way? ###
smax=maxval(s1(i0-64:i0-65+LL,j))
if(smax.gt.s1max) s1(i0-64:i0-65+LL,j)=s1(i0-64:i0-65+LL,j)*s1max/smax
enddo
dtstep=nsps/(NSTEP*12000.0) !Step size in seconds
lag1=-1.0/dtstep
lag2=1.0/dtstep + 0.9999
@ -112,28 +103,46 @@ subroutine q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
j0=0.5/dtstep
if(nsps.ge.7200) j0=1.0/dtstep !Nominal start-signal index
idec=-1
dat4=0
s3=0.
call timer('s1 ',0)
! Compute symbol spectra with NSTEP time bins per symbol
call q65_symspec(iwave,ntrperiod*12000,iz,jz,s1)
call timer('s1 ',1)
i0=nint(nfqso/df) !Target QSO frequency
if(i0-64.lt.1 .or. i0-65+LL.gt.iz) go to 900 !Frequency out of range
call pctile(s1(i0-64:i0-65+LL,1:jz),LL*jz,40,base)
s1=s1/base
! Apply fast AGC to the symbol spectra
s1max=20.0 !Empirical choice
do j=1,jz !### Maybe wrong way? ###
smax=maxval(s1(i0-64:i0-65+LL,j))
if(smax.gt.s1max) s1(i0-64:i0-65+LL,j)=s1(i0-64:i0-65+LL,j)*s1max/smax
enddo
dat4=0
if(ncw.gt.0) then
! Try list decoding via "Deep Likelihood".
call timer('ccf_85 ',0)
! Try to synchronize using all 85 symbols
call q65_ccf_85(s1,iz,jz,nfqso,ia,ia2,ipk,jpk,f0,xdt,imsg_best,ccf,ccf1)
call timer('ccf_85 ',1)
call timer('list_dec',0)
call q65_dec_q3(s1,iz,jz,s3,LL,ipk,jpk,snr2,dat4,idec,decoded)
call timer('list_dec',1)
ic=ia2/4;
base=(sum(ccf1(-ia2:-ia2+ic)) + sum(ccf1(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf1=ccf1-base
smax=maxval(ccf1)
if(smax.gt.10.0) ccf1=10.0*ccf1/smax
base=(sum(ccf2(-ia2:-ia2+ic)) + sum(ccf2(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf2=ccf2-base
smax=maxval(ccf2)
if(smax.gt.10.0) ccf2=10.0*ccf2/smax
if(idec.ne.0) then
ic=ia2/4;
base=(sum(ccf1(-ia2:-ia2+ic)) + sum(ccf1(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf1=ccf1-base
smax=maxval(ccf1)
if(smax.gt.10.0) ccf1=10.0*ccf1/smax
base=(sum(ccf2(-ia2:-ia2+ic)) + sum(ccf2(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf2=ccf2-base
smax=maxval(ccf2)
if(smax.gt.10.0) ccf2=10.0*ccf2/smax
endif
endif
! Get 2d CCF and ccf2 using sync symbols only
@ -158,7 +167,8 @@ subroutine q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
if(snr1.gt.10.0) ccf2=(10.0/snr1)*ccf2
if(idec.le.0) then
! The q3 decode attempt failed, so we'll try a more general decode.
! The q3 decode attempt failed. Copy synchronied symbol spectra from s1
! into s3 and prepare to try a more general decode.
ccf1=ccf(:,jpk)/rms
if(snr1.gt.10.0) ccf1=(10.0/snr1)*ccf1
call q65_s1_to_s3(s1,iz,jz,ipk,jpk,LL,mode_q65,sync,s3)
@ -264,7 +274,7 @@ subroutine q65_dec_q3(s1,iz,jz,s3,LL,ipk,jpk,snr2,dat4,idec,decoded)
call q65_dec1(s3,nsubmode,b90ts,esnodb,irc,dat4,decoded)
if(irc.ge.0) then
snr2=esnodb - db(2500.0/baud) + 3.0 !Empirical adjustment
idec=1
idec=3
exit
endif
enddo

2
lib/qra/q65/q65_loops.f90
View File

@ -78,7 +78,7 @@ subroutine q65_loops(c00,npts2,nsps2,nsubmode,ndepth,jpk0, &
! write(55,3055) ndepth,iaptype,idf,idt,ibw,ndist,irc,sum(s3(1:LL*NN)), &
! trim(decoded)
!3055 format(7i4,f10.1,1x,a)
idec=iaptype+2
idec=iaptype
snr2=esnodb - db(2500.0/baud)
xdt1=xdt0 + nsps2*ndt/(16.0*6000.0)
f1=f0 + 0.5*baud*ndf