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AWR1642BOOST: Time/ Phase Jitter with AWRBoost Boost and DCA1000.

Anum Pirkani
Expert 2005 points
Part Number: AWR1642BOOST
Other Parts Discussed in Thread: AWR1642, AWR1843

Hello,

I am trying to do interference investigation using the AWR1642Boost board. Is is possible to add time and phase jitter to the transmitted chirps using the Radar Studio?

Regards

Anum

  • 0
    TI__Guru 69960 points

    Hi Anum,

    You can play with Tx start time and BPM feature of device to achieve that.

    mmwavelink ->

    rlSetProfileConfig ->rlProfileCfg_t-> txStartTime

    rlSetBpmCommonConfig

    AWR1642 supports only BPM (binary phase modulation: zero or 180 degrees of phase on selected Tx for chirp Index).

    Whereas AWR1843 provides 5.6degree of unit phase shifter.

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Expert 2005 points

    Thanks a lot. Can we control this Tx start time and phase for every chirp of the frame?

  • 0 in reply to Anum Pirkani
    TI__Guru 69960 points

    Anum,

    Phase of each chirp can be controlled based on above said API. Tx Start time is connected with the profile configuration and device supports max 4 profiles. So max four chirps can have unique tx time. Optionally you can control ADC start time for each of chirps uniquely (rlChirpCfg_t-> adcStartTimeVar), it is the time when ADC sampling will start in the device during the frequency ramp.

    Regards,

    Jitendra