IWR6843: How to detect more static points with IWR6843?

zgh

Part Number: IWR6843

We want to construct 2D map using point cloud from IWR6843 sdk demo, yet we can't get enough points.

We have tried to turn off the Clutter-Removal feature and adjust cfarCfg, and get point cloud like the follow graph(We put the radar board towards a wall in a distance of about half meter):

How can we get more points for 2D map building? Can we adjust some config to get more static points from a wall and rebuild the map? Is IWR6843 able to capture as much information as we need?

over 5 years ago

0 Charles Oladimeji over 5 years ago

TI__Mastermind 33805 points

Hi,

Using the out of the box visualizer, can you please try tuning the various configuration until you get a better point cloud? then download and use the same config file on the SDK demo.

BR,

Charles O

0 zgh over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

We did get a better point cloud, yet it seems not good enough only through tuning the various configuration.

Can we get more points by modifying the Cfar and AoA process in the dss module?

Is IWR6843 able to capture as much information as we need?

Is there any other EVM product that can meet our needs of consturcting 2d map? What's the differences between these products?

Hope to get your reply.

0 zgh over 5 years ago in reply to Charles Oladimeji

Prodigy 70 points

We did get a better point cloud, yet it seems not good enough only through tuning the various configuration.

0 zigang Yang over 5 years ago in reply to zgh

TI__Mastermind 39835 points

HI,

Make sure you are disable peak grouping and use the full 4G RF bandwidth to minimize the range resolution.

It is challenge for the single chip radar to detect the extension of a wall. You can consider a cascade system. But we do not have a full real-time demo yet for the cascade system.

Here is some training material regarding cascade system: https://training.ti.com/build-cascaded-radar-using-tis-mmwave-sensors

Best,

Zigang

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IWR6843: How to detect more static points with IWR6843?