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AWR6843AOP: capon phase compensation in 3D people tracking

wenhong liu
Prodigy 110 points
Part Number: AWR6843AOP

HI

 Dear TI engineers,I‘m learning the 3D_people_tracking project,in the source file radarProcess.c,I found the code as follows:

 

the note is 'rearrange phase compensation coeff from OOB to be able to use in 2D capon chain', how to understand the phase rearrange which can be used in the capon steering，is there any math theory?

Why is the antenna calibration coefficient compensated in advance on the steering vector, and perform the conversion as shown in the figure above

BR,

wenhong Liu.

  • 0
    TI__Mastermind 40685 points

    HI, Wenhong:

    For any angle estimation algorithm, bartlett or capon, the phase compensation is needed before angle estimation.  

    The phase compensation is provided to this people tracking demo using CLI command compRangeBiasAndRxChanPhase.  In order to obtain the phase/gain compensation value, users need to run OOB demo with profile_calibration.cfg, which can be found at

    C:\ti\mmwave_sdk_03_xx_xx_xx\packages\ti\demo\xwr68xx\mmw\profiles\profile_calibration.cfg

    Best,

    Zigang

  • 0 in reply to zigang Yang
    Prodigy 110 points

    Thanks ,Zigang.