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IWR1642: Parameters for power lines detection

Dmitry Frolov
Prodigy 140 points

Part Number: IWR1642

Hi everyone, im trying to use TI demo code to detect power lines (approx 1cm thin) with a max speed of 10 meters/s on a range 15-20 meters.

Can anyone suggest the parameters I should set in demo visualizer?

  • 0
    TI__Guru 50240 points

    Hello Dmitry,

    You should check out the brand new mmWave Sensing Estimator with this link. Here you can configure the mmWave Sensor in a variety of ways and it will automatically show you the desired Chirp Parameters for your specific configuration. I think you're going to find it pretty useful, let me know if you have any questions.

    Cheers,

    Akash

  • 0 in reply to Akash Gondalia
    Prodigy 140 points
    Is it possible to contact the team and obtain chirp parameters used by your employees during outdoor experiment as described in this paper?
    http://www.ti.com/lit/SPYY001
  • 0 in reply to Dmitry Frolov
    TI__Guru 50240 points
    Hello again Dmitry,

    I contacted the Systems team that did this experiment and they sent me the following parameters:

    Parameter | Value
    Start Freq 77GHz
    Freq Slope 33MHz/us
    Sampling rate 10MHz
    ADC samples_3.3G 1000

    Number of adc samples: 1000
    Number of chirps:32



    Cheers,
    Akash
  • 0 in reply to Akash Gondalia
    Prodigy 140 points

    So, they used the same parameters they used in a chamber experiment? Ok, how then should i set profileCfg parameters for iwr1642?

    Another question - how should I set them using SensingEstimator software? I try but sensorr freezes on sensorStart command, or responses with error.

    For example:

    I set

    profileCfg 0 77 7 6.3 59.09 0 0 58.13 1 223 4306 0 0 30

    frameCfg 0 1 27 0 33.333 1 0

    For this estimator output

  • 0 in reply to Dmitry Frolov
    TI__Guru 50240 points
    Dmitry,

    You are inputting your chirp parameters correctly (It must be done manually) but I believe your configuration might be a bit too much for the visualizer.

    I'd recommend working with the SDK itself using CCS for debugging. I am confident that your configuration will work very well then.

    Let me know if you have any more questions.

    Cheers,
    Akash