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AWR1642: Distance of Rxs

Cassie
Intellectual 260 points
Part Number: AWR1642

Hi,experts

Can  the distance of RXs be changed in the software of awr1642? We have a different RX-distance from awr1642 EVM , during the test we found it calculated an incorrect angle of the target.

Thank you.

  • 0
    TI__Guru*** 138269 points
    Hi

    The RX distance is defined by the antenna layout. It can't be changed in software

    thank you
    Cesar
  • 0
    TI__Expert 5235 points

    The angle (azimuth in case of 1642, there is no elevation) calculation assumes the consecutive rx distance to be lambda/2 and distance between two tx to be 2*lambda (this creates a virtual 8 rx array separated by lambda/2 in TDM-MIMO mode) for the TI 1642 EVM. You can refer to the doxygen documentation of the demo to see how angle is computed and modify the processing according to your layout but there is no general configuration for rx spacing specification (say through the CLI interface) in the software. If you designed your EVM to have a different spacing then you must have done this for some reason so it is surprising that you even attempted to run the software and expect anything but incorrect angle.

  • 0 in reply to Cesar
    Intellectual 260 points
    Thank you a lot!