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IWR1443: 3D map from the top view

user5354432
Prodigy 20 points
Part Number: IWR1443

Hello, I have a question about using the IWR1443 sensor to create 3D map of space. Sensor will be located above scanned scene. It is possible to use this sensor in this case? Is there demo or some example code for 3D map of space? 

My second question is about interference between two or more sensors. It is possible to use two sensors, where each sensor is located opossite to other? 

Thanks. 

  • 0
    TI__Mastermind 30405 points

    Hello,

    The 1443 does provide a 3D point cloud with Range, Velocity and Angle in both Azimuth and Elevation directions. You can mount it above the region of interest and visualize the point cloud using the mmWave ROS Point Cloud Visualizer Lab available on TI Resource Explorer. It'll depend upon your application requirements whether the Field of View and angular resolution provided by a single chip are suitable for your mapping or not. The IWR1443BOOST EVM has a 110 degree Azimuth field of view and 30 degree elevation field of view (based on 6dB drop in signal as compared to center). This will become an elliptical FOV if you're mounting the sensor on top of the scene. The angular resolution (ability to detect two objects/points in angle spectrum as two different points) in azimuth direction is 15 degrees and the same in elevation direction is about 57 degrees. Please look at the following thread on a similar topic:

    IWR1443BOOST: Is IWR1443 able to do 3D imaging

    Regards

    -Nitin  

  • 0 in reply to Nitin Sakhuja
    Prodigy 20 points

    Thank you for answer. I tried to played with ROS and drivers. 

    It is possible redesign antenna on kit or use another externall antenna for large elevation of view? Can radar chip work with larger angle if another design of antenna is used? 

  • 0 in reply to user5354432
    TI__Mastermind 30405 points

    You can certainly design antenna to meet your application FOV requirements in azimuth and/or elevation.You can also refer to the mmWave Antenna Database under mmWave Industrial Toolbox. This database is meant to be a central repository of Antenna designs from TI and third parties. External antennas are not supported on TI mmWave EVMs but you can certainly use external antennas (e.g. Horn antennas) with your own board design.

    Regards

    -Nitin