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https://github.com/saitohirga/WSJT-X.git
synced 2024-11-25 05:38:46 -05:00
Rename refspec() to refspectrum().
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6601 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor
parent
88e47a5941
commit
23298c1743
@ -387,7 +387,7 @@ set (wsjt_FSRCS
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lib/ps4.f90
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lib/readwav.f90
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lib/rectify_msk.f90
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lib/refspec.f90
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lib/refspectrum.f90
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lib/savec2.f90
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lib/sec_midn.f90
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lib/setup65.f90
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@ -40,6 +40,14 @@ OBJS1 = jt9w.o smo.o sync9w.o pctile.o shell.o lorentzian.o fchisq0.o \
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jt9w: $(OBJS1)
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$(FC) -o jt9w $(OBJS1) -lfftw3f
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OBJS2 = t1.o four2a.o db.o
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t1: $(OBJS2)
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$(FC) -o t1 $(OBJS2) -lfftw3f
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OBJS3 = t2.o four2a.o db.o
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t2: $(OBJS3)
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$(FC) -o t2 $(OBJS3) -lfftw3f
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.PHONY : clean
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clean:
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@ -1,17 +0,0 @@
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subroutine refspec(id2,k)
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! Input:
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! id2 raw 16-bit integer data, 12000 Hz sample rate
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! k pointer to the most recent new data
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! Output (in common/c0com)
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! c0 complex data downsampled to 1500 Hz
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parameter (NMAX=120*12000) !Total sample intervals per 30 minutes
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integer*2 id2(0:NMAX-1)
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! write(*,3001) id2(k-3456:k-3456+9),k
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!3001 format(10i5,i10)
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return
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end subroutine refspec
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14
lib/refspectrum.f90
Normal file
14
lib/refspectrum.f90
Normal file
@ -0,0 +1,14 @@
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subroutine refspectrum(id2,brefspec)
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! Input:
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! id2 i*2 Raw 16-bit integer data, 12000 Hz sample rate
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! brefspec logical True when accumulating a reference spectrum
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integer*2 id2(3456)
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logical brefspec
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! write(*,3001) id2(1:10),brefspec
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!3001 format(10i5,L8)
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return
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end subroutine refspectrum
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172
lib/t1.f90
172
lib/t1.f90
@ -1,140 +1,52 @@
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program t1
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parameter (NSPM=1404)
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complex csig(0:NSPM-1)
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complex c(0:NSPM-1)
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complex cnoise(0:NSPM-1)
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complex cd(0:11,0:3)
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complex z,zmax
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integer itone(234)
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real r(234)
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real ss(0:3)
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character*12 arg
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parameter (NFFT=1024,NH=NFFT/2)
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real w(-24:24)
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real x(0:NFFT-1)
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complex cx(0:NH)
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equivalence (x,cx)
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nargs=iargc()
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if(nargs.ne.3) then
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print*,'Usage: t1 nsymtest snrdb iters'
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go to 999
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endif
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call getarg(1,arg)
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read(arg,*) nsymtest
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call getarg(2,arg)
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read(arg,*) snrdb
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call getarg(3,arg)
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read(arg,*) iters
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! FIR lowpass filter designed using ScopeFIR
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call init_random_seed() ! seed Fortran RANDOM_NUMBER generator
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call sgran() ! see C rand generator (used in gran)
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! fsample = 48000 Hz
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! Ntaps = 49
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! fc = 4500 Hz
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! fstop = 6000 Hz
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! Ripple = 1 dB
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! Stop Atten = 40 dB
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! fout = 12000 Hz
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! Filter coefficients:
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data w/ &
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0.000861074040, 0.010051920210, 0.010161983649, 0.011363155076, &
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0.008706594219, 0.002613872664,-0.005202883094,-0.011720748164, &
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-0.013752163325,-0.009431602741, 0.000539063909, 0.012636767098, &
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0.021494659597, 0.021951235065, 0.011564169382,-0.007656470131, &
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-0.028965787341,-0.042637874109,-0.039203309748,-0.013153301537, &
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0.034320769178, 0.094717832646, 0.154224604789, 0.197758325022, &
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0.213715139513, 0.197758325022, 0.154224604789, 0.094717832646, &
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0.034320769178,-0.013153301537,-0.039203309748,-0.042637874109, &
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-0.028965787341,-0.007656470131, 0.011564169382, 0.021951235065, &
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0.021494659597, 0.012636767098, 0.000539063909,-0.009431602741, &
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-0.013752163325,-0.011720748164,-0.005202883094, 0.002613872664, &
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0.008706594219, 0.011363155076, 0.010161983649, 0.010051920210, &
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0.000861074040/
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call random_number(r)
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itone=0
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where(r.gt.0.5) itone=1
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twopi=8.0*atan(1.0)
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fmid=1500.0
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f0=fmid-500.
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f1=fmid+500.
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dt=1.0/12000.0
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phi=0.
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do n=0,3
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k=-1
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dphi=twopi*f0*dt
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if(n.ge.2) dphi=twopi*f1*dt
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do i=0,5
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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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cd(k,n)=cmplx(cos(phi),sin(phi))
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enddo
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dphi=twopi*f0*dt
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if(mod(n,2).eq.1) dphi=twopi*f1*dt
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do i=6,11
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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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cd(k,n)=cmplx(cos(phi),sin(phi))
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enddo
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x=0.
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do i=-24,24
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j=i
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if(j.lt.0) j=j+NFFT
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x(j)=w(i)
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enddo
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! do k=0,11
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! write(13,1000) k,cd(k,0:3)
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!1000 format(i4,8f9.3)
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!enddo
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call four2a(x,NFFT,1,-1,0) !r2c FFT
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! Generate signal waveform
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k=-1
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phi=0.
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do j=1,234
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dphi=twopi*f0*dt
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if(itone(j).eq.1) dphi=twopi*f1*dt
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do i=1,6
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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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csig(k)=cmplx(cos(phi),sin(phi))
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! write(14,1000) k,csig(k)
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enddo
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df=48000.0/NFFT
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do i=0,NH
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y=abs(cx(i))
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s=y*y
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f=i*df
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write(13,1000) f,y,s,db(s),cx(i)
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1000 format(6f12.6)
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enddo
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write(*,1010)
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1010 format(' S/N (S+N)/N BER'/'----------------------')
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isnra=10
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isnrb=-3
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nsyms=234
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do isnr=isnra,isnrb,-1
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snr=10.0**(0.1*isnr)
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if(snrdb.ne.0.0) snr=10.0**(0.1*snrdb)
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fac=1.0/sqrt(snr)
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nsumerr=0
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do iter=1,iters
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do i=0,NSPM-1
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x=gran()
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y=gran()
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cnoise(i)=cmplx(x,y)
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enddo
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c=csig + fac*cnoise
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nerr=0
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n1=2
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nstep=2
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iz=5
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if(nsymtest.eq.2) then
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n1=3
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nstep=1
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iz=11
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endif
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do j=1,nsyms
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smax=0.
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do n=0,n1,nstep
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s=0.
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k=6*(j-1)
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do i=0,iz
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s=s + aimag(c(k+i))*aimag(cd(i,n))
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enddo
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ss(n)=s
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if(abs(s).gt.abs(smax)) then
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smax=s
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npk=n
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endif
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enddo
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sym=max(abs(ss(2)),abs(ss(3))) - max(abs(ss(0)),abs(ss(1)))
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! ibit=npk/2
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ibit=0
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if(sym.ge.0.0) ibit=1
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if(ibit.ne.itone(j)) nerr=nerr+1
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enddo
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nsumerr=nsumerr+nerr
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enddo
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write(*,1020) 10.0*log10(snr),10.0*log10(snr+1.0), &
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float(nsumerr)/(nsyms*iters)
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1020 format(f5.1,f7.1,f9.3)
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if(snrdb.ne.0.0) exit
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enddo
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999 end program t1
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end program t1
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@ -37,13 +37,13 @@ Mode nsps Rate B t_sym t_msg Suggested
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Slow modes, sample Rate 12000 Hz:
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------------------------------------------------------------------------
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JT9A 6912 1.736 15.625 576 48.96 QRP HF dxing
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JT9B 3840 1.736 28.125 576 48.96
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JT9C 1920 1.736 56.25 576 48.96
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JT9D 960 1.736 112.5 576 48.96
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JT9E 480 1.736 225 576 48.96
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JT9F 240 1.736 450 576 48.96
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JT9G 120 1.736 900 576 48.96
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JT9H 60 1.736 1800 576 48.96 Microwave EME?
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JT9B 6912 1.736 28.125 576 48.96
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JT9C 6912 1.736 56.25 576 48.96
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JT9D 6912 1.736 112.5 576 48.96
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JT9E 6912 1.736 225 576 48.96
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JT9F 6912 1.736 450 576 48.96
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JT9G 6912 1.736 900 576 48.96 Microwave EME?
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JT9H 6912 1.736 1800 576 48.96 Microwave EME?
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WSPR 8192 1.465 5.86 683 110.59 Propagation probe
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@ -99,7 +99,7 @@ extern "C" {
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void hash_calls_(char calls[], int* ih9, int len);
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void degrade_snr_(short d2[], int* n, float* db, float* bandwidth);
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void wav12_(short d2[], short d1[], int* nbytes, short* nbitsam2);
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void refspec_(short int d2[], int* k);
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void refspectrum_(short int d2[], bool* brefspec);
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}
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int volatile itone[NUM_ISCAT_SYMBOLS]; //Audio tones for all Tx symbols
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@ -874,8 +874,7 @@ void MainWindow::dataSink(qint64 frames)
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static float df3;
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int k (frames);
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refspec_(dec_data.d2,&k);
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// wspr_downsample_(dec_data.d2,&k);
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refspectrum_(&dec_data.d2[k-3456],&m_bRefSpec);
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if(m_diskData) {
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dec_data.params.ndiskdat=1;
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