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AWR2944EVM: numDopplerBins and numAdcSamples

TI-CSC
Genius 13015 points
Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944

Tool/software:

Hello E2E Experts,

Good day.

As shown in the following figure, I see numDopplerBins in the cfarCfg configuration of DDM. May I ask if numDopplerBins is equal to numAdcSamples?

And where is numDopplerBins configured?

Regards,

TICSC

  • 0
    TI__Mastermind 20960 points

    Hi,

    Number of doppler bins configured is equal to the total number of chirps. And number of range bins is equal to number of ADC samples/ 2 in case of AWR2944 since the ADC samples are real only.

    frameCfg 0 5 128 0 384 50 1 0

    In the above configuration, number of unique chirps is 6 and number of chirps loops is 128. So, total number of chirps will be 6*128 = 768 -> number of doppler bins.

    For better understanding of FMCW radars you can check mmWave radar sensors  | TI.com video series.

    You can also check Radar Academy .

    Regards,

    Samhitha