Sylphase SDGPS
The software-defined GPS(/GNSS) toolkit

Type signature: (raw->[raw])

Example output of plot-raw node (Infix-2, with antenna plugged in and viewing sky)



plot-raw [OPTION]...

Allowed options:

Option Description
--help produce help message
--gnss-stream arg (=0) GNSS stream to use
--duration DURATION (=0.01) length of data to plot (units: seconds)
--period PERIOD (=0.1) offset between subsequent plots (units: seconds)
--offset OFFSET (=0) offset into each period of data to plot (units: seconds)
--scale-x SCALE_X (=1) scale X coordinates by this number
--wait wait for each plot to be acknowledged
--psd plot power spectral density (default if no other plots are specified)
--annotate-spurs measure top 5 spurs and list in PSD plot annotation (enabled by default if no plots are explicitly specified)
--time plot time-domain signal
--time-max-samples arg (=1024) limit maximum number of samples displayed in time-domain plot
--psd-bins arg (=4096) number of frequency bins for PSD
--psd-show-dc show DC bias spike in PSD (default: remove mean from samples before computing periodogram)
--histogram also plot histogram of sample values
--histogram2 also plot full histogram of all (I, Q) pairs
--tone arg plot the magnitude and phase of a tone that is at this baseband frequency (units: Hertz)
--statlog-psd-peak FREQUENCY log power of max PSD point within 0.1 MHz of FREQUENCY (units: Hertz)
--statlog-total-power log total power