Merged master 8748

This commit is contained in:
Jordan Sherer
2018-08-05 11:33:30 -04:00
parent 8f8772f1bd
commit 62899069bf
1095 changed files with 31298 additions and 367679 deletions
@@ -1,99 +0,0 @@
program ft8sim
! Generate simulated data for a 15-second HF/6m mode using 8-FSK.
! Output is saved to a *.wav file.
use wavhdr
include 'ft8_params.f90' !Set various constants
type(hdr) h !Header for .wav file
character arg*12,fname*17
character msg*22,msgsent*22
complex c0(0:NMAX-1)
complex c(0:NMAX-1)
integer itone(NN)
integer*2 iwave(NMAX) !Generated full-length waveform
! Get command-line argument(s)
nargs=iargc()
if(nargs.ne.6) then
print*,'Usage: ft8sim "message" DT fdop del nfiles snr'
print*,'Example: ft8sim "K1ABC W9XYZ EN37" 0.0 0.1 1.0 10 -18'
go to 999
endif
call getarg(1,msg) !Message to be transmitted
call getarg(2,arg)
read(arg,*) xdt !Time offset from nominal (s)
call getarg(3,arg)
read(arg,*) fspread !Watterson frequency spread (Hz)
call getarg(4,arg)
read(arg,*) delay !Watterson delay (ms)
call getarg(5,arg)
read(arg,*) nfiles !Number of files
call getarg(6,arg)
read(arg,*) snrdb !SNR_2500
twopi=8.0*atan(1.0)
fs=12000.0 !Sample rate (Hz)
dt=1.0/fs !Sample interval (s)
tt=NSPS*dt !Duration of symbols (s)
baud=1.0/tt !Keying rate (baud)
bw=8*baud !Occupied bandwidth (Hz)
txt=NZ*dt !Transmission length (s)
bandwidth_ratio=2500.0/(fs/2.0)
sig=sqrt(2*bandwidth_ratio) * 10.0**(0.05*snrdb)
if(snrdb.gt.90.0) sig=1.0
txt=NN*NSPS/12000.0
call genft8(msg,msgsent,itone) !Source-encode, then get itone()
write(*,1000) f0,xdt,txt,snrdb,bw,msgsent
1000 format('f0:',f9.3,' DT:',f6.2,' TxT:',f6.1,' SNR:',f6.1, &
' BW:',f4.1,2x,a22)
! call sgran()
c=0.
do ifile=1,nfiles
c0=0.
do isig=1,25
f0=(isig+2)*100.0
phi=0.0
k=-1 + nint(xdt/dt)
do j=1,NN !Generate complex waveform
dphi=twopi*(f0+itone(j)*baud)*dt
if(k.eq.0) phi=-dphi
do i=1,NSPS
k=k+1
phi=phi+dphi
if(phi.gt.twopi) phi=phi-twopi
xphi=phi
if(k.ge.0 .and. k.lt.NMAX) c0(k)=cmplx(cos(xphi),sin(xphi))
enddo
enddo
if(fspread.ne.0.0 .or. delay.ne.0.0) call watterson(c,NMAX,fs,delay,fspread)
c=c+c0
enddo
c=c*sig
if(snrdb.lt.90) then
do i=0,NMAX-1 !Add gaussian noise at specified SNR
xnoise=gran()
ynoise=gran()
c(i)=c(i) + cmplx(xnoise,ynoise)
enddo
endif
fac=32767.0
rms=100.0
if(snrdb.ge.90.0) iwave(1:NMAX)=nint(fac*real(c))
if(snrdb.lt.90.0) iwave(1:NMAX)=nint(rms*real(c))
h=default_header(12000,NMAX)
write(fname,1102) ifile
1102 format('000000_',i6.6,'.wav')
open(10,file=fname,status='unknown',access='stream')
write(10) h,iwave !Save to *.wav file
close(10)
write(*,1110) ifile,xdt,f0,snrdb,fname
1110 format(i4,f7.2,f8.2,f7.1,2x,a17)
enddo
999 end program ft8sim
@@ -0,0 +1,11 @@
This boost tree is a cut down version of the 1.63.0 source tree built
using the boost bcp utility, invoked thus:
cd <clean-boost-source-tree>
<path-where-bcp-was-built>/bcp iterator range math numeric crc circular_buffer build bootstrap.bat bootstrap.sh boostcpp.jam boost-build.jam <this-directory>
Note that bcp is built from a separate boost source tree to avoid
polluting the clean tree used to extract components from above.
Add other boost libraries as necessary. See the Subversion book for
details on how to maintain 3rd-party vendor content used in a project.