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Optional q65 decoding params from q65_params.txt. Maybe temporary!

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Joe Taylor 2023-01-20 14:09:51 -05:00
parent 96aa4fd85c
commit 31bedb8528
2 changed files with 26 additions and 2 deletions
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15
lib/q65_decode.f90
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@ -73,8 +73,9 @@ contains
real f0decodes(100)
integer dat4(13) !Decoded message as 12 6-bit integers
integer dgen(13)
integer nq65param(0:7)
logical lclearave,lnewdat0,lapcqonly,unpk77_success
logical single_decode,lagain
logical single_decode,lagain,ex
complex, allocatable :: c00(:) !Analytic signal, 6000 Sa/s
complex, allocatable :: c0(:) !Analytic signal, 6000 Sa/s
integer stageno !Added by W3SZ
@ -147,6 +148,18 @@ contains
ibwb=min(10,ibwb+1)
maxiters=60
endif
inquire(file='q65_params.txt',exist=ex)
if(ex) then
open(28,file='q65_params.txt',status='old')
read(28,*) nq65param
ibwa=max(1,nq65param(nsubmode))
ibwa=min(40,ibwa)
ibwb=ibwa
maxiters=nq65param(4+iand(ndepth,3))
close(28)
endif
! write(*,3001) iand(ndepth,3),nsubmode,ibwa,ibwb,maxiters
!3001 format(5i5)
! Generate codewords for full-AP list decoding
if(ichar(hiscall(1:1)).eq.0) hiscall=' '
if(ichar(hisgrid(1:1)).eq.0) hisgrid=' '

13
lib/qra/q65/q65.f90
View File

@ -396,7 +396,18 @@ subroutine q65_dec_q012(s3,LL,snr2,dat4,idec,decoded)
read(c78,1060) apsymbols
endif
do ibw=ibwa,ibwb
! do ibw=ibwa,ibwb
!###
ibw_mid=(ibwa+ibwb)/2
iimax=3
if(maxiters.eq.40) iimax=5
if(maxiters.eq.60) iimax=7
! print*,'a',maxiters,ibwa,ibwb,ibw_mid,iimax
do ii=1,iimax
n=ii/2
if(iand(ii,1).eq.0) n=-n
ibw=ibw_mid + n
!###
b90=1.72**ibw
b90ts=b90/baud
call q65_dec2(s3,nsubmode,b90ts,esnodb,irc,dat4,decoded)