About radar data format: x, y, z, rcs and another dimension what should it represent?

[leijobs]

Hello, thanks to your team open source dualradar dataset, and I found out that arbe and ars548 radar have a single vector dimension of 5, x, y, z, rcs and another dimension what should it represent? Thanks! Also is it possible to get the time intervals of the sensors, do they all work at 10hz steadily, thus can the relative speed be calculated from the time and displacement between frames?

[Michael-Schulze]

I did not check the data, but 4D radar typically have x, y, z, rcs and relative radial speed (vr) as features.