AWR1642 bias issue

chianan chang

According AR1642 EVM release notes: There is a bias of +8cm in the range direction measured...... Does TI has plan to solve this issue?

over 8 years ago

0 Vivek Dham over 8 years ago

TI__Guru 58035 points

Hello Chianan,
Could you point to the specific release notes you are referring to ?

0 chianan chang over 8 years ago in reply to Vivek Dham

Intellectual 810 points

Sorry, it is found in the mss_main.c . The whole text show below:

- There is a bias of +8 cm (e.g true is 1 m but measured is 1.08 m) in the range direction
* measured with the profile configurations in mmw/gui.
* This is likely due to delay in the front-end of the RF chain, which hasn't been
* characterized yet.

0 Vivek Dham over 8 years ago in reply to chianan chang

TI__Guru 58035 points

Hello Chianan,
The 'bias' is due to additional propagation delays on the board, antenna etc. This would vary from board to board (depending on the design). It would be a fixed number for a platform and can be easily subtracted out in the final estimation.

-Vivek

0 chianan chang over 8 years ago in reply to Vivek Dham

Intellectual 810 points

Hi Vivek
Got it. Understand and thanks.

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AWR1642 bias issue