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AWR2944EVM: Configuring the number of transmitters and receivers for DDM mode

Arie Rudnitsky
Intellectual 300 points
Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944

Tool/software:

Hi,

is it possible to change the number of transmitters and/or receivers for DDM single user mode using a configuration file and based on the provided by SDK FW?

I loaded into EVM C:\ti\mmwave_mcuplus_sdk_04_07_00_01\mmwave_mcuplus_sdk_04_07_00_01\ti\demo\awr294x\mmw\awr2944_mmw_demoDDM.appimage

May it be that this specific FW doesn't permit it but if we take a code from RTB and make some changes inside we do be able to reduce the number of tramitters to 1?

Arie

  • 0
    TI__Guru*** 149014 points

    Hi,

    with DDM you will not be able to reduce the number of Tx since the DDM modulation is based on the number of Tx. 

    What application are you trying to implement?

    Thank you

    Cesar

  • 0 in reply to Cesar
    Intellectual 300 points

    Hi,

    we want to develop a long range DDM application in which the angle resolution is much less critical than the distance. So we are interested in a single user DDM case. Consequently, if I consider a constellation in which there are 4 transmitters and 4 receivers, I will be ready "to sacrify" the angle resolution by reducing the number of transmitters but to increase the Doppler FFT size for a single Tx aiming a higher processing gain. Optimally will be to have a single Tx and 4 Rx constellation. Do I have any option to reduce the number of Tx/Rx in DDM case?

    Arie

  • +1 in reply to Arie Rudnitsky
    TI__Expert 3370 points

    Hello,

    Again you won't be able to reduce the number of Tx since that is what the DDM modulation is based on. However, if you are looking for a particularly long range DDM demo there is one available in the radar toolbox under "high_end_corner_radar". The path is the following 

    C:\Repo\radar_toolbox\source\ti\examples\Automotive_ADAS_and_Parking\high_end_corner_radar

    Let me know if this demo is of interest.

    Best,

    Gabriel

  • 0 in reply to Gabriel Gigliotti
    TI__Expert 3370 points

    Hello,

    I will be closing this thread.

    Best,

    Gabriel