AWR1843: Appear mirror presentation if the object is put near the detected range boundary.

bolong chen

Part Number: AWR1843

Please tell me how to fixed the mmwave radar awr1843 bug.

The bug is that the TI measurement objects will show at mirror presentation location(ex.-x, y) from it's truly location(x, y) if the object is put near the detected range boundary.

8 months ago

0 Samhitha Bobba 8 months ago

TI__Genius 11600 points

Hi Bolong,

Please take a look at the following thread to understand the coordinates -

(+) AWR1843BOOST: XYZ coordinate of the sensor output - Sensors forum - Sensors - TI E2E support forums.

(+) AWR1843BOOST: examples for 3d point cloud data over uart? - Sensors forum - Sensors - TI E2E support forums

If you want to make any changes to the demo visualizer, you can refer to (+) [FAQ] AWR1843: Where can I find the source code for the mmWave Demo Visualizer - Sensors forum - Sensors - TI E2E support forums

Regards,

Samhitha

0 bolong chen 8 months ago in reply to Samhitha Bobba

Prodigy 30 points

Hi Samhitha Bobbs:

Where can I see the functions about the measurement objects position generation in the source code mmwave_sdk_03_05_00_04?

Thanks,

Bolong

0 Samhitha Bobba 8 months ago in reply to bolong chen

TI__Genius 11600 points

Hi Bolong,

AoAProcHWA_XYZestimation function calculates x/y/z coordinates.

Path: C:\ti\mmwave_sdk_03_06_02_00-LTS\packages\ti\datapath\dpc\dpu\aoaproc\src\aoaprochwa.c

Regards,

Samhitha

0 bolong chen 8 months ago in reply to Samhitha Bobba

Prodigy 30 points

Hi Samhitha Bobbs:

Do you know why TI need

"Estimate x,y,z" twice in AoAProcHWA_angleEstimationAzimElev()? I found the mirror ghost spot shown in

"Multi peak azimuzth search" section by beanforming. Is it necessary to find second peak?

Thanks,

Bolong

0 Samhitha Bobba 8 months ago in reply to bolong chen

TI__Genius 11600 points

Hi Bolong,

Refer to (+) AWR6843: Explanation on MultiObjectBeamForming Algorithm in SDk 3.5 (AOA2DPROC) - Sensors forum - Sensors - TI E2E support forums to understand about MultiObjectBeamForming and why we find second peak.

Regards,

Samhitha