AWR1843AOPEVM: AWR1843AOPEVM: Performance issue

Mohan C

Prodigy 130 points

Part Number: AWR1843AOPEVM
Other Parts Discussed in Thread: AWR1843AOP,

Hi,

We are performing obstacle detection test using AWR1843AOP EVMs. We have three EVMs in office.

Among these EVMs, one EVM(Serial Number: Board-2522106B0455) performance is not so good compared to other two EVMs.

Attached below the test results:

Board-2522106B0214:

Board-2522106B0688:

Board-2522106B0455:

Please let us know how to improve the performance of Board-2522106B0455 AWR1843AOPEVM and how to resolve this inconsistency in Board-2522106B0455.

Thanks

C Mohan

over 2 years ago

0 Vivek Dham over 2 years ago

TI__Guru 58035 points

Hello Mohan,

Can you explain the above plots? Are the triangles the location of the obstacles? What exactly is the arrow denoting?

regards,

vivek

0 Mohan C over 2 years ago in reply to Vivek Dham

Prodigy 130 points

Hi Vivek,

The tail of the arrow denotes the actual position of the object. The head of arrow(Triangle shaped) denotes the detection of object in radar.

Thanks

C Mohan

0 Vivek Dham over 2 years ago in reply to Mohan C

TI__Guru 58035 points

Hello Mohan,

It looks like there is an angle error in the measurement when the object angle is large. In general the angular error is expected to higher at very large angles. There could be additional reasons for the angle error, like SNR of the signal, the phase mismatch between channels etc.

Regards,

Vivek

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AWR1843AOPEVM: AWR1843AOPEVM: Performance issue