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AWR1843BOOST: Multiple Tx antennas in high accuracy lab

Antonio Jurado
Prodigy 175 points
Part Number: AWR1843BOOST
Other Parts Discussed in Thread: IWR1843, AWR1843

Hi, 

I'm working with the AWR1843BOOST and I would like to use the high accuracy lab with 3 Tx antennas transmitting simultaneously. I read in the code that this lab only supports one Tx antenna transmiting, but I have a cuestion. It there a manner to transmit with 3 Tx antennas simultaneously? It would require major changes or is directly impossible to implement this characteristic?

Thanks.

  • +1
    TI__Guru 50240 points

    Hi Antonio

    First the High Accuracy Lab is not compatible with either AWR1843 or IWR1843 devices in its current state although it is possible to port the 6843 version of the lab for use with the AWR1843.

    All versions of the lab use 1 Tx and 1 Rx because only a range measurement is performed. First the 1D Range FFT is performed and then second Zoom FFT is performed to achieve range accuracy on the millimeter level.

    Neither doppler nor angle FFT processing is performed in this chain, so adding more Tx to the existing code-set does not add much value to the High Accuracy Use Case for level sensing or other applications. I'd recommend looking at this Whitepaper for more info about multi Tx use and applications.

    For further queries please open up a new thread.

    Regards,

    AG