IWR6843AOP: Angle processing

Mahalakshmi Iyadurai1

Intellectual 305 points

Part Number: IWR6843AOP

Tool/software:

For improving the computation time for angle processing for stationery objects,

whether we can take range and angle fft skipping the doppler FFT.

thank you.

3 months ago

0 Sharan S S 3 months ago

TI__Expert 4150 points

Hi,

We are looking into your query. Please allow us a day or two to respond back.

Regards

0 Abhishek Karkisaval 3 months ago in reply to Sharan S S

TI__Genius 11620 points

Hi,

If you do not need the doppler information, you can skip it. You can directly use the range and angle information to locate the object

Regards

0 Mahalakshmi Iyadurai1 3 months ago in reply to Abhishek Karkisaval

Intellectual 305 points

Thank you so much.

If the object is moving but no need of velocity estimation, in this case

to reduce computation time, whether we can skip doppler FFT and go with

range and angle FFT.

Whether the velocity of the object which creates doppler shift may

give ambiguous range measurement. Please clarify.

Thank you.

0 Abhishek Karkisaval 2 months ago in reply to Mahalakshmi Iyadurai1

TI__Genius 11620 points

If you do not need velocity, then you need not send multiple chirps. Only 1 chirp with all Tx Rx enabled is sufficient to determine the range and angle.

Multiple chirps are used when velocity needs to be determined. So, sending one chirp will provide you the snapshot of the scene even if there are moving objects

Regards

Sensors

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IWR6843AOP: Angle processing