mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-19 02:22:10 -05:00
065dff8c92
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6959 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
172 lines
4.1 KiB
Fortran
172 lines
4.1 KiB
Fortran
program msk32d
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parameter (NZ=15*12000,NZ0=262144)
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parameter (NSPM=6*32)
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complex c0(0:NZ0-1)
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complex c(0:NZ-1)
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complex cmsg(0:NSPM-1,0:63)
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complex z
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real a(3)
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real p0(0:NSPM-1)
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real p(0:NSPM-1)
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real s0(0:63)
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real dd(NZ)
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integer itone(144)
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integer ihdr(11)
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integer ipk0(1)
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integer*2 id2(NZ)
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character*22 msg,msgsent
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character mycall*8,hiscall*6,arg*12,infile*80,datetime*13
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character*4 rpt(0:63)
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equivalence (ipk0,ipk)
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nargs=iargc()
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if(nargs.lt.5) then
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print*,'Usage: msk32d Call_1 Call_2 f1 f2 file1 [file2 ...]'
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print*,'Example: msk32d K9AN K1JT 1500 1500 fort.61'
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go to 999
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endif
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call getarg(1,mycall)
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call getarg(2,hiscall)
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call getarg(3,arg)
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read(arg,*) nf1
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call getarg(4,arg)
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read(arg,*) nf2
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idf1=nf1-1500
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idf2=nf2-1500
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do i=0,30
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if( i.lt.5 ) then
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write(rpt(i),'(a1,i2.2,a1)') '-',abs(i-5)
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write(rpt(i+31),'(a2,i2.2,a1)') 'R-',abs(i-5)
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else
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write(rpt(i),'(a1,i2.2,a1)') '+',i-5
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write(rpt(i+31),'(a2,i2.2,a1)') 'R+',i-5
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endif
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enddo
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rpt(62)='RRR '
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rpt(63)='73 '
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! Generate the test messages
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twopi=8.0*atan(1.0)
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nsym=32
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freq=1500.0
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dphi0=twopi*(freq-500.0)/12000.0
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dphi1=twopi*(freq+500.0)/12000.0
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do imsg=0,63
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i=index(hiscall," ")
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msg="<"//mycall//" "//hiscall(1:i-1)//"> "//rpt(imsg)
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call fmtmsg(msg,iz)
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ichk=0
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call genmsk32(msg,msgsent,ichk,itone,itype)
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phi=0.0
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k=0
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do i=1,nsym
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dphi=dphi0
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if(itone(i).eq.1) dphi=dphi1
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do j=1,6
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x=cos(phi)
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y=sin(phi)
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cmsg(k,imsg)=cmplx(x,y)
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k=k+1
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phi=phi+dphi
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if(phi.gt.twopi) phi=phi-twopi
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enddo
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enddo
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enddo
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! Process the specified files
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nfiles=nargs-4
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do ifile=1,nfiles !Loop over all files
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call getarg(ifile+4,infile)
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open(10,file=infile,access='stream',status='old')
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read(10) ihdr,id2
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dd=0.03*id2
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npts=NZ
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n=log(float(npts))/log(2.0) + 1.0
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nfft=min(2**n,1024*1024)
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call analytic(dd,npts,nfft,c0) !Convert to analytic signal
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sbest=0.
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do imsg=0, 63 !Try all short messages
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do idf=idf1,idf2,10 !Frequency dither
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a(1)=-idf
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a(2:3)=0.
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call twkfreq(c0,c,npts,12000.0,a)
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smax=0.
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p=0.
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fac=1.0/192
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do j=0,npts-NSPM,2
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z=fac*dot_product(c(j:j+NSPM-1),cmsg(0:NSPM-1,imsg))
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s=real(z)**2 + aimag(z)**2
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k=mod(j,NSPM)
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p(k)=p(k)+s
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! if(imsg.eq.30) write(13,1010) j/12000.0,s,k
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!1010 format(2f12.6,i5)
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if(s.gt.smax) then
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smax=s
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jpk=j
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f0=idf
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if(smax.gt.sbest) then
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sbest=smax
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p0=p
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ibest=imsg
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endif
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endif
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enddo
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s0(imsg)=smax
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enddo
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enddo
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ipk0=maxloc(p0)
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ps=0.
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sq=0.
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ns=0
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pmax=0.
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do i=0,NSPM-1,2
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j=ipk-i
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if(j.gt.96) j=j-192
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if(j.lt.-96) j=j+192
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if(abs(j).gt.4) then
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ps=ps+p0(i)
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sq=sq+p0(i)**2
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ns=ns+1
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endif
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enddo
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avep=ps/ns
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rmsp=sqrt(sq/ns - avep*avep)
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p0=(p0-avep)/rmsp
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p1=maxval(p0)
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do i=0,NSPM-1,2
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write(14,1030) i,i/12000.0,p0(i)
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1030 format(i5,f10.6,f10.3)
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enddo
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ave=(sum(s0)-sbest)/63
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s0=s0-ave
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s1=sbest-ave
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s2=0.
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do i=0,63
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if(i.ne.ibest .and. s0(i).gt.s2) s2=s0(i)
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write(15,1020) i,idf,jpk/12000.0,s0(i)
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1020 format(2i6,2f10.2)
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enddo
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i=index(infile,".wav")
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datetime=infile(i-13:i-1)
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r1=s1/s2
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r2=r1+p1
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msg=" "
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! if(r1.gt.2.2 .or. p1.gt.7.0) then
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if(r2.gt.10.0) then
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i=index(hiscall," ")
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msg="<"//mycall//" "//hiscall(1:i-1)//"> "//rpt(ibest)
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call fmtmsg(msg,iz)
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endif
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write(*,1040) datetime,r1,p1,r2,msg
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1040 format(a13,3f7.1,2x,a22)
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enddo
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999 end program msk32d
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