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IWR1642: How to measure the distance between two mmWave radars

Part Number: IWR1642

Tool/software:

  Our application requirement is to measure how far a large mechanical equipment has traveled on a straight track, with a detection distance of over 300 meters and precision to the millimeter level. The specific application method is to install one millimeter wave radar at one end of the track and another on the mechanical equipment. The two millimeter wave radars send signals to each other, possibly based on the time of flight or other methods, to achieve millimeter-level precision in distance measurement. I have seen products with such applications from other companies, but I am not clear on the specific principles involved. Can TI's millimeter wave radar sensors meet such requirements? What is the specific principle?

  The specific requirement description is as follows: between two millimeter wave radars, the distance is 0-300 meters. By emitting signals to each other, they achieve distance measurement with millimeter-level precision, measuring the distance between the two radars.

  • Hello,

    It may be possible to use two radars pointed at each other to reach 300m+ with mm level of accuracy, but we have no testing nor software that can be used to test this. You would potentially need multiple radar chips cascaded together to get the accuracy level of mm at such massive ranges. As is currently we have no ready solution for this use case's specifications.

    Best Regards,

    Pedrhom