AWR2944EVM: The elevation angle accuracy in the demo High end corner radar

Rata Zhang

Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944

Hi,

By test, I find that the elevation angle accuracy is very bad, what is the reason for that? The following is my data, the radar is on the ground about 0.5m, but from the picture we can see that the vertical ditance of the objects is much larger that 0.5m. It seem like that the the elevation angle is not computed accurately,what causes that?

In the above picture, the x axis is range,and the y axis is vertical distance.From the picture we can see that the vertical distance is very large , it is not identical with the truth.

Rata

over 1 year ago

0 E. Shareef over 1 year ago

TI__Genius 16440 points

Hello,

Are you using the TI EVM or is this a custom board?

Thanks,

E. Shareef

0 Rata Zhang over 1 year ago in reply to E. Shareef

Expert 2840 points

Hi Ehtesham,

Yes ,MY board is AWR2944 EVM as belows:

Rata

0 Josh Wyatt over 1 year ago in reply to Rata Zhang

TI__Guru* 91206 points

Rata -

I will suggest that you procure another board, as it looks clearly to me that this board was/is being grossly mishandled, as well as not being cleaned after hand soldering.

0 Rata Zhang over 1 year ago in reply to Josh Wyatt

Expert 2840 points

Hi Josh,

My board is modified about Ethernet and Flashing circuit,will that introduced this problem?Should the elevation angle accuracy be decided by the antenna layout? Can you provide any results about the vertical distance during your test that I can refer?

Rata

0 Josh Wyatt over 1 year ago in reply to Rata Zhang

TI__Guru* 91206 points

Rata -

Figure 2-17 in the EVM user manual (page 17) shows the elevation angle sweep captured with EVM antenna.

https://www.ti.com/lit/ug/spruj22a/spruj22a.pdf

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AWR2944EVM: The elevation angle accuracy in the demo High end corner radar