Jeff mock's pdev spectrometer
03jun08
pdev
hardware: description and measurements.
pnetctl:
controlling pdev from cima
pdev
software: jeff mock's and ao additions
fits
file for pdev spectrometer
pdev
users guide (.pdf)
idl routines to process the .pdev and .fits files
List of
datafile taken by month.
History:
- See also:
- 080821: svn checkout https://mock.com/svn/pdev/web web on
pdevs1:/home.local/pdev/pdev to get the web files for the
website.
- 080624: added List of
datafile taken by month.
- 080615: timedomain
sampling.
- Does not have an
8 bytes hdr rec. psrv.c was treating those bytes as a rec header
and byteswapping them.
- psrv.c was also using the fftlen to compute how
many blks fit in 1 second. Updated so it used the sample rate.
- pnetbld now correctly computes how long each block takes in
time domain mode.
- 080614: polA,polB
or stokesI is stored as unsigned int while fits uses signed.
Changed bpOut.c to clip to maximum signed value for these pols.
- 080613: ashift
computation in pnetbld. Shift up by 1 more for
stokesU,V relative to pola,polB. This makes the rms of U,V the
same as polA,B since jeff outputs 2*polA,2*polb, but only 1*U, 1*V. (Note: 13jun08 i shifted 1 less for
u,v..17jun08 i corrected it to shift 1 more). check data
- 080608: pnetbld changed default
hr_shift to be 12-alog2(sqrt(dec)). see fpga dlpf and parameters
hr_shift. check
home_~phil