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Linux/AWR1843BOOST: mmwave demo shows strange data - side lobes?

Part Number: AWR1843BOOST

Tool/software: Linux

I've only been experimenting with this device for a few days and I'm very new to radar. I'm evaluating the AWR1843BOOST for use in a robotics application and I'm not getting very good data so hoping someone could provide insight into a better configuration. I'd like a range of at least 50 meters. Here's the configuration I'm using currently. drive.google.com/open

The biggest issue is that I'm seeing what may be a lot of sidelobes instead of returns on the actual object. This is visible in the two videos below.

mmwave visualizer: drive.google.com/open

rviz: https://drive.google.com/open?id=1m6PqKkFtNOcJ5D7LUkV__HMwCtCN8luB

Using the latest 3.2 firmware.