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AWR2243: Cascade Radar Frame configuration

ArTzy
Genius 17675 points
Part Number: AWR2243
Other Parts Discussed in Thread: TX12,

Hi Experts,

Good day. Seeking assistance on this query:

We are configuring TI AWR2243 cascade radar with all the TX and RX antennas and 128 chirploops per frame. Our question is how the 12 tx antennas are transmitting these 128 chirploops? Is it like, Tx1 transmits all 128 chirps, then Tx2 transmits 128 chirps,....... Tx12 transmits 128 chirps? Or, Tx1 transmits chirp 1, then tx2 transmits chirp 2, .... tx 12  transmits chirp 12 to complete 1 chirploop. In this way 128 chirploops are completed?  

Thank you.

Regards,
Archie A.

  • 0
    TI__Guru*** 149204 points

    Hi,

    This will depend on the frame/chirp configuration.

    Usually there are two types of configuration used: Beamforming and MIMO.

    In Beamforming mode all chirps are transmitted at the same time (all TX are enabled at the same time)

    In MIMO mode one TX is enabled at one time.So for example, Tx1 will send the first chirp, then Tx2 will send the second chirp.... This information will be part of the chirp configuration

    How are you performing this configuration?

    ArTzy said:
    how the 12 tx antennas are transmitting these 128 chirploops? Is it like, Tx1 transmits all 128 chirps, then Tx2 transmits 128 chirps,....... Tx12 transmits 128 chirps? Or, Tx1 transmits chirp 1, then tx2 transmits chirp 2, .... tx 12  transmits chirp 12 to complete 1 chirploop. In this way 128 chirploops are completed?  

    Thank you

    Cesar

  • 0
    Prodigy 10 points

    Hi Cesar, I do have the same question for TDMA MIMO configuration.

  • 0 in reply to Mahbub Rahman
    TI__Guru*** 149204 points

    For BF, all Tx send chirp1, then chirp 2, ...

    For MIMO, Tx1 sends chirp 1. Tx2 sends chirp 2 ... as specified by the configuration

    So, basically, the configuration describes the behavior

    thank you
    Cesar