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cbassa / strf

Radio Frequency Satellite Tracking
GNU General Public License v3.0
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tobs_determining #8

Closed rasoulmy closed 6 years ago

rasoulmy commented 6 years ago

Thanks, but I search for optimum t_obs for any data, how we can reach to this goal? As you know, this value differ for each data.

cbassa commented 6 years ago

The -t option in rffft sets the time length of each spectrum. So with 100Hz frequency resolution you get 100 spectra per second, so with -t 1.0 [the default], you average 100 spectra. The optimum integration length will depend on what you are trying to see. For normal Doppler curves, 1s integrations are fine, but if you want to see Doppler from rotation then you may need shorter integration times.