radar-lab/ti_mmwave_rospkg

why the velocity is always zero?

waterww opened this issue · 2 comments

header: seq: 4890 stamp: secs: 1570222264 nsecs: 810949472 frame_id: "ti_mmwave" point_id: 4 x: 4.4609375 y: 1.46875 z: 0.0 range: 5.76523923874 velocity: 0.0 doppler_bin: 8 bearing: 18.2239704132 intensity: 22.3552837372
I test the package on IWR1443, however the velocity output is always 0.

Could you check the Doppler resolution? It seems you only have 16 Doppler bins. Seems all low velocities fall into the zero velocity bin.

Thanks!
The Doppler velocity resolution is too large. I revise config file and it works