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AWR2243: problem with DK's TXBF algorithm

Katherine Wang
Intellectual 2210 points
Part Number: AWR2243

Hi Team,

I have an urgent issue now. The hardware environment I am using is AWR2243 four-cascade board, that is, MMCAS-RD-EVM and MMCAS-DSP-EVM, and the software environment is radar sdk3.8

I now have a query about the txbf algorithm. I notice two BF processing algorithms in the sdk, namely AlgorithmFxn_RadarDspTxBeamFormProcess and AlgorithmFxn_RadarBeamFormProcess

Then I found the principle of the call: use it according to the macro definition in the apps\src\rtos\radar\src\alg_plugins\alg_fxns\common\alg_functions.c file, as shown in the following figure:

I would like to know: What is the difference between the two algorithms dsptxbeamform and beamForm?


My own speculation from looking at the code is: the processing of dsptxbeamform is only to generate the thermal imaging map from the one-dimensional FFT result of EVM, and there may be Doppler fft in beamForm.

Finally, if there is a difference, can I customize and use a certain algorithm, and where shall I make modifications?

Kind regards,

Katherine

  • 0
    TI__Guru*** 141284 points

    Hi,

    Unfortunately the team that developed this code is no longer available for support.

    Please use the source code to better understand the code.

    Usually in radar signal processing tx beamforming means that the phase of the transmitted wave is phase shifted by the transmitter. The AWR2243 includes hardware TX phase shifters that allow to modify the phase of the transmitted wave

    thank you

    Cesar