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TDA3LA: Floating Point RDM Support

Khai Trinh
Genius 4140 points
Part Number: TDA3LA
Other Parts Discussed in Thread: AWR1243

Hi,

The current vision SDK output fixed point 16 bit I and 16 bit Q. Is it possible to output floating point IQ for finer precision? We would like to extract the phase differences between the RX channels from the RDM data.

Thanks,

--Khai

  • 0
    TI__Mastermind 30235 points

    Khai,

    The AWR1243 gives out fixed point 16 bit I and Q. The EVE FFT always works with fixed point. We support 32 bit fixed point output of doppler FFT (note peak detection and beam forming all are designed to work with 16 bit fixed point.) You can refer to the DSP implementation of the RDM data generation to use 32 bit fixed point to floating point RDM creation. 

    For 32 bit fixed point support refer to eve_sw_01_19_00_00 (available from Processor SDK Radar 3.06 onwards).

    For DSP processing this fixed point output, you can refer to vision_sdk\apps\src\rtos\radar\src\alg_plugins\alg_fxns\radardspcascademimo from Processor SDK Radar 3.07.

    Thanks and Reards,

    Piyali