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Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0

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Bill Somerville 2019-06-06 13:19:02 +01:00
commit 7d14602b07
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10 changed files with 32 additions and 603 deletions
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4
CMakeLists.txt
View File

@ -528,7 +528,6 @@ set (wsjt_FSRCS
lib/msk144sim.f90
lib/mskrtd.f90
lib/nuttal_window.f90
lib/ft4/ft4b.f90
lib/ft4/ft4sim.f90
lib/ft4/ft4sim_mult.f90
lib/ft4/ft4_downsample.f90
@ -1322,9 +1321,6 @@ target_link_libraries (averaged_mf wsjt_fort wsjt_cxx)
add_executable (ft4sim_mult lib/ft4/ft4sim_mult.f90 wsjtx.rc)
target_link_libraries (ft4sim_mult wsjt_fort wsjt_cxx)
add_executable (ft4d lib/ft4/ft4d.f90 wsjtx.rc)
target_link_libraries (ft4d wsjt_fort wsjt_cxx)
add_executable (record_time_signal Audio/tools/record_time_signal.cpp)
target_link_libraries (record_time_signal wsjt_cxx wsjt_qtmm wsjt_qt)

30
Release_Notes.txt
View File

@ -22,30 +22,33 @@ updated AD1C CTY.DAT database.
Release: WSJT-X 2.1.0-rc6
May 30, 2019
June 2, 2019
-------------------------
Changes and bug fixes since WSJT-X 2.1.0-rc5:
IMPORTANT CHANGES TO THE FT4 PROTOCOL, NOT BACKWARD COMPATIBLE
IMPORTANT CHANGES TO THE FT4 PROTOCOL *** NOT BACKWARD COMPATIBLE ***
- T/R sequence length increased from 6.0 to 7.5 seconds
- Symbol rate decreased from 23.4375 to 20.8333 baud.
- Bandwidth decreased from 90 Hz to 80 Hz
- Symbol rate decreased from 23.4375 to 20.8333 baud
- Signal bandwidth decreased from 90 Hz to 80 Hz
OTHER IMPROVEMENTS
- Allowable FT4 time offsets -1.0 < DT < +1.0 s
- Allow RRR Tx4 message in FT4 mode, if not using contest messages
- Send FT4 audio frequency to PSK Reporter
OTHER FT4 IMPROVEMENTS
- Allowable time offsets -1.0 < DT < +1.0 s
- Tx4 message with RRR now allowed, except in contest messages
- Audio frequency is now sent to PSK Reporter
- Add a third decoding pass
- Add ordered statistics decoding
- Improved sensitivity: threshold S/N is now -17.5 dB
- Improved S/N calculation
- In FT4 mode, Shift+F11/F12 moves Tx freq by +/- 100 Hz
OTHER IMPROVEMENTS
- Improvements to accessibility
- Updates to the User Guide (not yet complete, however)
- New user option: "Calling CQ forces Call 1st"
- In FT4 mode, Shift+F11/F12 moves Tx freq by +/- 100 Hz
- Improved S/N calculation for FT4 mode
- N1MM Logger+ now uses the standard WSJT-X UDP messages
- OK/Cancel buttons on Log QSO window maintain fixed positions
- Put EU VHF contest serial numbers into the ADIF SRX and STX fields
- Enhancements to the Omni-Rig CAT interface
- New setting option to include or exclude WAE entities
@ -57,6 +60,13 @@ BUG FIXES
- Fix a bug that caused a Fortran bounds error
- Repaired field editing in the Contest Log window
Release candidate WSJT-X 2.1.0-rc6 will be available for beta-testing
through July 21, 2019. It will be inoperable during the ARRL June VHF
QSO Party (June 8-10) or ARRL Field Day (June 22-23). It will
permanently cease to function after July 21, 2019. If all goes
according to plan, by that time there will be a General
Availability (GA) release of WSJT-X 2.1.0.
Release: WSJT-X 2.1.0-rc5
April 29, 2019

7
lib/ft4/ft4_downsample.f90
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@ -1,8 +1,5 @@
subroutine ft4_downsample(dd,newdata,f0,c)
! Input: real data in dd() at sample rate 12000 Hz
! Output: Complex data in c(), sampled at 1200 Hz
include 'ft4_params.f90'
parameter (NFFT2=NMAX/NDOWN)
real dd(NMAX)
@ -40,8 +37,8 @@ subroutine ft4_downsample(dd,newdata,f0,c)
c1=0.
if(i0.ge.0 .and. i0.le.NMAX/2) c1(0)=cx(i0)
do i=1,NFFT2/2
if(i0+i.le.NMAX/2) c1(i)=cx(i0+i)
if(i0-i.ge.0) c1(NFFT2-i)=cx(i0-i)
if(i0+i.ge.0 .and. i0+i.le.NMAX/2) c1(i)=cx(i0+i)
if(i0-i.ge.0 .and. i0-i.le.NMAX/2) c1(NFFT2-i)=cx(i0-i)
enddo
c1=c1*window/NFFT2
call four2a(c1,NFFT2,1,1,1) !c2c FFT back to time domain

2
lib/ft4/ft4_params.f90
View File

@ -1,5 +1,5 @@
! FT4
! LDPC(174,91) code, four 4x4 Costas arrays for Sync
! LDPC(174,91) code, four 4x4 Costas arrays for sync, ramp-up and ramp-down symbols
parameter (KK=91) !Information bits (77 + CRC14)
parameter (ND=87) !Data symbols

489
lib/ft4/ft4b.f90
View File

@ -1,489 +0,0 @@
subroutine ft4b(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
iwave,ndecodes,mycall,hiscall,cqstr,line,data_dir)
use packjt77
include 'ft4_params.f90'
parameter (NSS=NSPS/NDOWN)
character message*37,msgsent*37,msg0*37
character c77*77
character*61 line,linex(100)
character*37 decodes(100)
character*512 data_dir,fname
character*17 cdatetime0
character*12 mycall,hiscall
character*12 mycall0,hiscall0
character*6 hhmmss
character*4 cqstr,cqstr0
complex cd2(0:NMAX/NDOWN-1) !Complex waveform
complex cb(0:NMAX/NDOWN-1)
complex cd(0:NN*NSS-1) !Complex waveform
complex ctwk(2*NSS),ctwk2(2*NSS,-16:16)
complex csymb(NSS)
complex cs(0:3,NN)
real s4(0:3,NN)
real bmeta(2*NN),bmetb(2*NN),bmetc(2*NN)
real a(5)
real llr(2*ND),llra(2*ND),llrb(2*ND),llrc(2*ND),llrd(2*ND)
real s2(0:255)
real candidate(3,100)
real savg(NH1),sbase(NH1)
integer apbits(2*ND)
integer apmy_ru(28),aphis_fd(28)
integer icos4a(0:3),icos4b(0:3),icos4c(0:3),icos4d(0:3)
integer*2 iwave(NMAX) !Raw received data
integer*1 message77(77),rvec(77),apmask(2*ND),cw(2*ND)
integer*1 hbits(2*NN)
integer graymap(0:3)
integer ip(1)
integer nappasses(0:5) ! # of decoding passes for QSO States 0-5
integer naptypes(0:5,4) ! nQSOProgress, decoding pass
integer mcq(29)
integer mrrr(19),m73(19),mrr73(19)
logical nohiscall,unpk77_success
logical one(0:255,0:7) ! 256 4-symbol sequences, 8 bits
logical first, dobigfft
data icos4a/0,1,3,2/
data icos4b/1,0,2,3/
data icos4c/2,3,1,0/
data icos4d/3,2,0,1/
data graymap/0,1,3,2/
data msg0/' '/
data first/.true./
data mcq/0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0/
data mrrr/0,1,1,1,1,1,1,0,1,0,0,1,0,0,1,0,0,0,1/
data m73/0,1,1,1,1,1,1,0,1,0,0,1,0,1,0,0,0,0,1/
data mrr73/0,1,1,1,1,1,1,0,0,1,1,1,0,1,0,1,0,0,1/
data rvec/0,1,0,0,1,0,1,0,0,1,0,1,1,1,1,0,1,0,0,0,1,0,0,1,1,0,1,1,0, &
1,0,0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,0,1,1,1,1,0,0,1,0,1, &
0,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0,1,0,1/
save fs,dt,tt,txt,twopi,h,one,first,linex,apbits,nappasses,naptypes, &
mycall0,hiscall0,msg0,cqstr0,ctwk2
call clockit('ft4_deco',0)
hhmmss=cdatetime0(8:13)
if(first) then
fs=12000.0/NDOWN !Sample rate after downsampling
dt=1/fs !Sample interval after downsample (s)
tt=NSPS*dt !Duration of "itone" symbols (s)
txt=NZ*dt !Transmission length (s) without ramp up/down
twopi=8.0*atan(1.0)
h=1.0
one=.false.
do i=0,255
do j=0,7
if(iand(i,2**j).ne.0) one(i,j)=.true.
enddo
enddo
do idf=-16,16
a=0.
a(1)=real(idf)
ctwk=1.
call clockit('twkfreq1',0)
call twkfreq1(ctwk,2*NSS,fs/2.0,a,ctwk2(:,idf))
call clockit('twkfreq1',1)
enddo
mrrr=2*mod(mrrr+rvec(59:77),2)-1
m73=2*mod(m73+rvec(59:77),2)-1
mrr73=2*mod(mrr73+rvec(59:77),2)-1
nappasses(0)=2
nappasses(1)=2
nappasses(2)=2
nappasses(3)=2
nappasses(4)=2
nappasses(5)=3
! iaptype
!------------------------
! 1 CQ ??? ??? (29 ap bits)
! 2 MyCall ??? ??? (29 ap bits)
! 3 MyCall DxCall ??? (58 ap bits)
! 4 MyCall DxCall RRR (77 ap bits)
! 5 MyCall DxCall 73 (77 ap bits)
! 6 MyCall DxCall RR73 (77 ap bits)
!********
naptypes(0,1:4)=(/1,2,0,0/) ! Tx6 selected (CQ)
naptypes(1,1:4)=(/2,3,0,0/) ! Tx1
naptypes(2,1:4)=(/2,3,0,0/) ! Tx2
naptypes(3,1:4)=(/3,6,0,0/) ! Tx3
naptypes(4,1:4)=(/3,6,0,0/) ! Tx4
naptypes(5,1:4)=(/3,1,2,0/) ! Tx5
mycall0=''
hiscall0=''
cqstr0=''
first=.false.
endif
if(cqstr.ne.cqstr0) then
i0=index(cqstr,' ')
if(i0.le.1) then
message='CQ A1AA AA01'
else
message='CQ '//cqstr(1:i0-1)//' A1AA AA01'
endif
i3=-1
n3=-1
call pack77(message,i3,n3,c77)
call unpack77(c77,1,msgsent,unpk77_success)
read(c77,'(29i1)') mcq
mcq=2*mod(mcq+rvec(1:29),2)-1
cqstr0=cqstr
endif
l1=index(mycall,char(0))
if(l1.ne.0) mycall(l1:)=" "
l1=index(hiscall,char(0))
if(l1.ne.0) hiscall(l1:)=" "
if(mycall.ne.mycall0 .or. hiscall.ne.hiscall0) then
apbits=0
apbits(1)=99
apbits(30)=99
apmy_ru=0
aphis_fd=0
if(len(trim(mycall)) .lt. 3) go to 10
nohiscall=.false.
hiscall0=hiscall
if(len(trim(hiscall0)).lt.3) then
hiscall0=mycall ! use mycall for dummy hiscall - mycall won't be hashed.
nohiscall=.true.
endif
message=trim(mycall)//' '//trim(hiscall0)//' RR73'
i3=-1
n3=-1
call pack77(message,i3,n3,c77)
call unpack77(c77,1,msgsent,unpk77_success)
if(i3.ne.1 .or. (message.ne.msgsent) .or. .not.unpk77_success) go to 10
read(c77,'(77i1)') message77
apmy_ru=2*mod(message77(1:28)+rvec(2:29),2)-1
aphis_fd=2*mod(message77(30:57)+rvec(29:56),2)-1
message77=mod(message77+rvec,2)
call encode174_91(message77,cw)
apbits=2*cw-1
if(nohiscall) apbits(30)=99
10 continue
mycall0=mycall
hiscall0=hiscall
endif
candidate=0.0
ncand=0
syncmin=1.2
maxcand=100
fa=nfa
fb=nfb
call clockit('getcand4',0)
call getcandidates4(iwave,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
ncand,sbase)
call clockit('getcand4',1)
ndecodes=0
dobigfft=.true.
do icand=1,ncand
f0=candidate(1,icand)
snr=candidate(3,icand)-1.0
if( f0.le.10.0 .or. f0.ge.4990.0 ) cycle
call clockit('ft4_down',0)
call ft4_downsample(iwave,dobigfft,f0,cd2) !Downsample from 512 to 32 Sa/Symbol
if(dobigfft) dobigfft=.false.
call clockit('ft4_down',1)
sum2=sum(cd2*conjg(cd2))/(real(NMAX)/real(NDOWN))
if(sum2.gt.0.0) cd2=cd2/sqrt(sum2)
! Sample rate is now 12000/16 = 750 samples/second
do isync=1,2
if(isync.eq.1) then
idfmin=-12
idfmax=12
idfstp=3
ibmin=0
ibmax=216 !Max DT = 216/750 = 0.288 s
ibstp=4
else
idfmin=idfbest-4
idfmax=idfbest+4
idfstp=1
ibmin=max(0,ibest-5)
ibmax=min(ibest+5,NMAX/NDOWN-1)
ibstp=1
endif
ibest=-1
smax=-99.
idfbest=0
do idf=idfmin,idfmax,idfstp
call clockit('sync4d ',0)
do istart=ibmin,ibmax,ibstp
call sync4d(cd2,istart,ctwk2(:,idf),1,sync) !Find sync power
if(sync.gt.smax) then
smax=sync
ibest=istart
idfbest=idf
endif
enddo
call clockit('sync4d ',1)
enddo
enddo
f0=f0+real(idfbest)
if( f0.le.10.0 .or. f0.ge.4990.0 ) cycle
call clockit('ft4down ',0)
call ft4_downsample(iwave,dobigfft,f0,cb) !Final downsample with corrected f0
call clockit('ft4down ',1)
sum2=sum(abs(cb)**2)/(real(NSS)*NN)
if(sum2.gt.0.0) cb=cb/sqrt(sum2)
cd=cb(ibest:ibest+NN*NSS-1)
call clockit('four2a ',0)
do k=1,NN
i1=(k-1)*NSS
csymb=cd(i1:i1+NSS-1)
call four2a(csymb,NSS,1,-1,1)
cs(0:3,k)=csymb(1:4)
s4(0:3,k)=abs(csymb(1:4))
enddo
call clockit('four2a ',1)
! Sync quality check
is1=0
is2=0
is3=0
is4=0
do k=1,4
ip=maxloc(s4(:,k))
if(icos4a(k-1).eq.(ip(1)-1)) is1=is1+1
ip=maxloc(s4(:,k+33))
if(icos4b(k-1).eq.(ip(1)-1)) is2=is2+1
ip=maxloc(s4(:,k+66))
if(icos4c(k-1).eq.(ip(1)-1)) is3=is3+1
ip=maxloc(s4(:,k+99))
if(icos4d(k-1).eq.(ip(1)-1)) is4=is4+1
enddo
nsync=is1+is2+is3+is4 !Number of correct hard sync symbols, 0-16
if(smax .lt. 0.7 .or. nsync .lt. 8) cycle
do nseq=1,3 !Try coherent sequences of 1, 2, and 4 symbols
if(nseq.eq.1) nsym=1
if(nseq.eq.2) nsym=2
if(nseq.eq.3) nsym=4
nt=2**(2*nsym)
do ks=1,NN-nsym+1,nsym !87+16=103 symbols.
amax=-1.0
do i=0,nt-1
i1=i/64
i2=iand(i,63)/16
i3=iand(i,15)/4
i4=iand(i,3)
if(nsym.eq.1) then
s2(i)=abs(cs(graymap(i4),ks))
elseif(nsym.eq.2) then
s2(i)=abs(cs(graymap(i3),ks)+cs(graymap(i4),ks+1))
elseif(nsym.eq.4) then
s2(i)=abs(cs(graymap(i1),ks ) + &
cs(graymap(i2),ks+1) + &
cs(graymap(i3),ks+2) + &
cs(graymap(i4),ks+3) &
)
else
print*,"Error - nsym must be 1, 2, or 4."
endif
enddo
ipt=1+(ks-1)*2
if(nsym.eq.1) ibmax=1
if(nsym.eq.2) ibmax=3
if(nsym.eq.4) ibmax=7
do ib=0,ibmax
bm=maxval(s2(0:nt-1),one(0:nt-1,ibmax-ib)) - &
maxval(s2(0:nt-1),.not.one(0:nt-1,ibmax-ib))
if(ipt+ib.gt.2*NN) cycle
if(nsym.eq.1) then
bmeta(ipt+ib)=bm
elseif(nsym.eq.2) then
bmetb(ipt+ib)=bm
elseif(nsym.eq.4) then
bmetc(ipt+ib)=bm
endif
enddo
enddo
enddo
bmetb(205:206)=bmeta(205:206)
bmetc(201:204)=bmetb(201:204)
bmetc(205:206)=bmeta(205:206)
call clockit('normaliz',0)
call normalizebmet(bmeta,2*NN)
call normalizebmet(bmetb,2*NN)
call normalizebmet(bmetc,2*NN)
call clockit('normaliz',1)
hbits=0
where(bmeta.ge.0) hbits=1
ns1=count(hbits( 1: 8).eq.(/0,0,0,1,1,0,1,1/))
ns2=count(hbits( 67: 74).eq.(/0,1,0,0,1,1,1,0/))
ns3=count(hbits(133:140).eq.(/1,1,1,0,0,1,0,0/))
ns4=count(hbits(199:206).eq.(/1,0,1,1,0,0,0,1/))
nsync_qual=ns1+ns2+ns3+ns4
if(nsync_qual.lt. 20) cycle
scalefac=2.83
llra( 1: 58)=bmeta( 9: 66)
llra( 59:116)=bmeta( 75:132)
llra(117:174)=bmeta(141:198)
llra=scalefac*llra
llrb( 1: 58)=bmetb( 9: 66)
llrb( 59:116)=bmetb( 75:132)
llrb(117:174)=bmetb(141:198)
llrb=scalefac*llrb
llrc( 1: 58)=bmetc( 9: 66)
llrc( 59:116)=bmetc( 75:132)
llrc(117:174)=bmetc(141:198)
llrc=scalefac*llrc
apmag=maxval(abs(llra))*1.1
npasses=3+nappasses(nQSOProgress)
if(ncontest.ge.5) npasses=3 ! Don't support Fox and Hound
do ipass=1,npasses
if(ipass.eq.1) llr=llra
if(ipass.eq.2) llr=llrb
if(ipass.eq.3) llr=llrc
if(ipass.le.3) then
apmask=0
iaptype=0
endif
if(ipass .gt. 3) then
llrd=llrc
iaptype=naptypes(nQSOProgress,ipass-3)
! ncontest=0 : NONE
! 1 : NA_VHF
! 2 : EU_VHF
! 3 : FIELD DAY
! 4 : RTTY
! 5 : FOX
! 6 : HOUND
!
! Conditions that cause us to bail out of AP decoding
napwid=50
if(ncontest.le.4 .and. iaptype.ge.3 .and. (abs(f0-nfqso).gt.napwid) ) cycle
if(iaptype.ge.2 .and. apbits(1).gt.1) cycle ! No, or nonstandard, mycall
if(iaptype.ge.3 .and. apbits(30).gt.1) cycle ! No, or nonstandard, dxcall
if(iaptype.eq.1) then ! CQ or CQ TEST or CQ FD or CQ RU or CQ SCC
apmask=0
apmask(1:29)=1
llrd(1:29)=apmag*mcq(1:29)
endif
if(iaptype.eq.2) then ! MyCall,???,???
apmask=0
if(ncontest.eq.0.or.ncontest.eq.1) then
apmask(1:29)=1
llrd(1:29)=apmag*apbits(1:29)
else if(ncontest.eq.2) then
apmask(1:28)=1
llrd(1:28)=apmag*apbits(1:28)
else if(ncontest.eq.3) then
apmask(1:28)=1
llrd(1:28)=apmag*apbits(1:28)
else if(ncontest.eq.4) then
apmask(2:29)=1
llrd(2:29)=apmag*apmy_ru(1:28)
endif
endif
if(iaptype.eq.3) then ! MyCall,DxCall,???
apmask=0
if(ncontest.eq.0.or.ncontest.eq.1.or.ncontest.eq.2) then
apmask(1:58)=1
llrd(1:58)=apmag*apbits(1:58)
else if(ncontest.eq.3) then ! Field Day
apmask(1:56)=1
llrd(1:28)=apmag*apbits(1:28)
llrd(29:56)=apmag*aphis_fd(1:28)
else if(ncontest.eq.4) then ! RTTY RU
apmask(2:57)=1
llrd(2:29)=apmag*apmy_ru(1:28)
llrd(30:57)=apmag*apbits(30:57)
endif
endif
if(iaptype.eq.4 .or. iaptype.eq.5 .or. iaptype.eq.6) then
apmask=0
if(ncontest.le.4) then
apmask(1:91)=1 ! mycall, hiscall, RRR|73|RR73
if(iaptype.eq.6) llrd(1:91)=apmag*apbits(1:91)
endif
endif
llr=llrd
endif
max_iterations=40
message77=0
call clockit('bpdecode',0)
call bpdecode174_91(llr,apmask,max_iterations,message77, &
cw,nharderror,niterations)
call clockit('bpdecode',1)
if(sum(message77).eq.0) cycle
if( nharderror.ge.0 ) then
message77=mod(message77+rvec,2) ! remove rvec scrambling
write(c77,'(77i1)') message77(1:77)
call unpack77(c77,1,message,unpk77_success)
idupe=0
do i=1,ndecodes
if(decodes(i).eq.message) idupe=1
enddo
if(ibest.le.10 .and. message.eq.msg0) idupe=1 !Already decoded
if(idupe.eq.1) exit
ndecodes=ndecodes+1
decodes(ndecodes)=message
if(snr.gt.0.0) then
xsnr=10*log10(snr)-14.0
else
xsnr=-20.0
endif
nsnr=nint(max(-20.0,xsnr))
freq=f0
tsig=mod(tbuf + ibest/750.0,100.0)
write(line,1000) hhmmss,nsnr,tsig,nint(freq),message
1000 format(a6,i4,f5.1,i5,' + ',1x,a37)
l1=index(data_dir,char(0))-1
if(l1.ge.1) data_dir(l1+1:l1+1)="/"
fname=data_dir(1:l1+1)//'all_ft4.txt'
open(24,file=trim(fname),status='unknown',position='append')
write(24,1002) cdatetime0,nsnr,tsig,nint(freq),message, &
nharderror,nsync_qual,ipass,niterations,iaptype,nsync
if(hhmmss.eq.' ') write(*,1002) cdatetime0,nsnr, &
tsig,nint(freq),message,nharderror,nsync_qual,ipass, &
niterations,iaptype
1002 format(a17,i4,f5.1,i5,' Rx ',a37,6i4)
close(24)
linex(ndecodes)=line
if(ibest.ge.ibmax-15) msg0=message !Possible dupe candidate
exit
endif
enddo !Sequence estimation
enddo !Candidate list
call clockit('ft4_deco',1)
call clockit2(data_dir)
call clockit('ft4_deco',101)
return
entry get_ft4msg(idecode,line)
line=linex(idecode)
return
end subroutine ft4b

83
lib/ft4/ft4d.f90
View File

@ -1,83 +0,0 @@
program ft4d
include 'ft4_params.f90'
character*8 arg
character*17 cdatetime
character*512 data_dir
character*12 mycall
character*12 hiscall
character*80 infile
character*61 line
character*4 cqstr
real*8 fMHz
integer ihdr(11)
integer*2 iwave(240000) !20*12000
fs=12000.0/NDOWN !Sample rate
dt=1/fs !Sample interval after downsample (s)
tt=NSPS*dt !Duration of "itone" symbols (s)
baud=1.0/tt !Keying rate for "itone" symbols (baud)
txt=NZ*dt !Transmission length (s)
nargs=iargc()
if(nargs.lt.1) then
print*,'Usage: ft4d [-a <data_dir>] [-f fMHz] [-n nQSOProgress] file1 [file2 ...]'
go to 999
endif
iarg=1
data_dir="."
call getarg(iarg,arg)
if(arg(1:2).eq.'-a') then
call getarg(iarg+1,data_dir)
iarg=iarg+2
endif
call getarg(iarg,arg)
if(arg(1:2).eq.'-f') then
call getarg(iarg+1,arg)
read(arg,*) fMHz
iarg=iarg+2
endif
nQSOProgress=0
if(arg(1:2).eq.'-n') then
call getarg(iarg+1,arg)
read(arg,*) nQSOProgress
iarg=iarg+2
endif
nfa=10
nfb=4990
ndecodes=0
nfqso=1500
mycall="K9AN"
hiscall="K1JT"
ncontest=4
cqstr="RU "
do ifile=iarg,nargs
call getarg(ifile,infile)
open(10,file=infile,status='old',access='stream')
read(10) ihdr
npts=min(ihdr(11)/2,180000)
read(10) iwave(1:npts)
close(10)
cdatetime=infile
j2=index(infile,'.wav')
if(j2.ge.14) cdatetime=infile(j2-13:j2)//'000'
istep=3456
nsteps=(npts-52800)/istep + 1
do n=1,nsteps
i0=(n-1)*istep + 1
tbuf=(i0-1)/12000.0
call ft4b(cdatetime,tbuf,nfa,nfb,nQSOProgress,ncontest, &
nfqso,iwave(i0),ndecodes,mycall,hiscall,cqstr,line,data_dir)
do idecode=1,ndecodes
call get_ft4msg(idecode,line)
write(*,'(a61)') line
enddo
enddo !steps
enddo !files
call four2a(xx,-1,1,-1,1) !Destroy FFTW plans to free their memory
999 end program ft4d

2
lib/ft4/genft4.f90
View File

@ -11,7 +11,7 @@ subroutine genft4(msg0,ichk,msgsent,msgbits,i4tone)
! s16 + 87symbols + 2 ramp up/down = 105 total channel symbols
! r1 + s4 + d29 + s4 + d29 + s4 + d29 + s4 + r1
! Message duration: TxT = 105*512/12000 = 4.48 s
! Message duration: TxT = 105*576/12000 = 5.04 s
! use iso_c_binding, only: c_loc,c_size_t

8
lib/ft4/getcandidates4.f90
View File

@ -47,7 +47,7 @@ subroutine getcandidates4(dd,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
nfa=fa/df
if(nfa.lt.nint(200.0/df)) nfa=nint(200.0/df)
nfb=fb/df
if(nfb.gt.nint(5000.0/df)) nfb=nint(5000.0/df)
if(nfb.gt.nint(4910.0/df)) nfb=nint(4910.0/df)
ncand=0
call ft4_baseline(savg,nfa,nfb,sbase)
if(any(sbase(nfa:nfb).le.0)) return
@ -60,13 +60,9 @@ subroutine getcandidates4(dd,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
del=0.
if(den.ne.0.0) del=0.5*(savsm(i-1)-savsm(i+1))/den
fpeak=(i+del)*df+f_offset
if(fpeak.lt.0.0 .or. fpeak.gt.4910.0) cycle
if(fpeak.lt.200.0 .or. fpeak.gt.4910.0) cycle
speak=savsm(i) - 0.25*(savsm(i-1)-savsm(i+1))*del
ncand=ncand+1
if(ncand.gt.maxcand) then
ncand=maxcand
exit
endif
candidate(1,ncand)=fpeak
candidate(2,ncand)=-99.99
candidate(3,ncand)=speak

2
lib/jt9.f90
View File

@ -234,7 +234,7 @@ program jt9
read(unit=wav%lun,end=3) shared_data%id2(k-kstep+1:k)
go to 4
3 call timer('read_wav',1)
print*,'EOF on input file ',infile
print*,'EOF on input file ',trim(infile)
exit
4 call timer('read_wav',1)
nhsym=(k-2048)/kstep

4
lib/readwav.f90
View File

@ -53,7 +53,8 @@ contains
type(riff_descriptor) :: desc
character(len=4) :: riff_type
open (newunit=this%lun, file=filename, access='stream', form='unformatted', status='old')
this%lun=26
open (unit=this%lun, file=filename, access='stream',status='old')
read (unit=this%lun) desc,riff_type
inquire (unit=this%lun, pos=filepos)
do
@ -67,5 +68,6 @@ contains
end if
filepos = filepos + (desc%size + 1) / 2 * 2 ! pad to even alignment
end do
return
end subroutine read
end module readwav