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IWR6843ISK-ODS: beam forming for vital sign monitoring application

Ying-Ren Chien
Prodigy 70 points
Part Number: IWR6843ISK-ODS

Hi,

I wonder if I could apply beam-forming technology for the virtual receiver array to get a better

result for raspiration monitoring application?

  • 0
    TI__Mastermind 32805 points

    Hi,

    The TX beamforming is mainly trying to increase transmit power and SNR.   The receive beamforming is majorly trying to improve the angle resolution during the angle of arrival estimation.   

    IN vital sign application, people are really close, so SNR should not be an issue.  And the angle is not estimated, so I do not think beamforming will be useful.

    Best,

    Zigang

  • 0 in reply to zigang Yang
    Prodigy 70 points

    Dear Zigang,

    Thank you for this reply. However, I found a paper, which is titled "Vital Signs Monitoring of Multiple People using a FMCW Millimeter-Wave Sensor", discussed how to se 1443 to

    enhence the vital signal monitoring for multiple people.

    This paper was authored by TI people. I believe their reported results are correct.

    I wonder if such technique could apply to one person case.

    Is that possible that I could get a better breathing signal from a person located at a know angle to FMCE radar?

    Thanks.

  • 0 in reply to Ying-Ren Chien
    TI__Mastermind 32805 points

    HI, 

    The paper you mentioning is doing RX beam-forming on the ADC data to focus on the person of interest. It would be helpful in scenarios where we want to reject signals that are in the same range bin other than the person of interest.  For example, if in the same range bin, you have another object other than the people of interest.  Then you can try the approach mentioned in the paper.

    Best,

    Zigang