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AWR1843BOOST: Object Detection in short range (20 m)

Gerardo Moyers
Prodigy 120 points
Part Number: AWR1843BOOST
Other Parts Discussed in Thread: AWR1642BOOST-ODS, , AWR1843, AWR1642, AWR1642BOOST

Hi, 

I am using the radar on a small autonomous rover, I want to have object detection using the AWR1843BOOST. I foun on the automoive toolbox a lab but it is designed for the AWR1642BOOST-ODS EVM. Which changes I have to made to lab 4 to make it work on the AWR1843? Also want to know what are the differences between the AWR1642BOOST-ODS EVM  and the AWR1843BOOST? 

Best regards,

Gerardo

  • 0
    Prodigy 120 points

    Just to be clear I want a 3D object detection and the objects are going to be static but the vehicle is moving. Is this lab the best option to achieve this with the AWR1843BOOST?

  • 0 in reply to Gerardo Moyers
    TI__Guru 68140 points

    You can refer MRR demo from TI-Rex Lab list for AWR1843 device.

    Additional feature of AWR1843 compare to AWR1642

    1. HWA 

    2. 3rd Tx and one of Tx is on elevation plane detection.

    3. Extra RAM.

    All other features are same and even AWR1642 can be executed on AWR1843 as it is.

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Prodigy 120 points

    Hi

    Thanks, I have other Questions. In the MRR lab which files should I change to reduce the Maximum range and range resolution? And also increase the FOV ? 

    For detecting objects in short range which lab will be better the MRR or the MRR-beamsteering?

    Regards,

    Gerardo

  • 0 in reply to Gerardo Moyers
    TI__Guru 68140 points

    Hello Gerardo,

    Distance & other features can be controlled by the device configuration.

    MRR application uses two configuration MRR and USRR. MRR-Beamforming will adds up few more meter and narrow down the view (reduce FOV). 

    So b/w these two you can opt for MRR which provides wider FoV and lesser range.

    For short range (80-100m) we have separate application SRR which you can use with AWR1843 device as well or use those configuration with MRR.

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Prodigy 120 points

    Hi Jitendra,

    Thanks for the reply, I was wondering, the configuration have to be changed in both dss and mss proyects?  The files you refer are the "mrr_config_chirp_design_MRR120.h"?  The SRR is for the AWR1642 so is it possible to still have the 3D detection?

    Best regards,

    Gerardo

  • 0 in reply to Gerardo Moyers
    TI__Guru 68140 points

    Hello Gerardo,

    The configuration is required for MSS (which configures RadarSS) and for DSS (which is processing core). So at the application, this configuration needs to change at DSS which configures the RadarSS and its processing chain accordingly.

    In MRR, configurations from mrr_config_chirp_design_MRR120.h are being used in mss_mrr_cli.c where it configures the RadarSS using mmwavelink APIs.

    SRR (AWR1642BOOST) will have lesser elevation coverage compare to MRR (AWR1843) due to no. of Tx antenna in elevation order. But still SRR (AWR1642BOOST) provides 3D detection (with the lesser unit).

    Additionally, AWR1642ODS has slightly different antenna pattern to have more coverage over elevation which you can use in your application to get 3D detection.

    SRR by default is built for AWR1642BOOST and for AWR1642ODS you can refer different application (link below) which showcase the elevation detection part of it.

    http://dev.ti.com/tirex/explore/node?node=AAVZ77.beT8w9U2Z65zdsQ__AocYeEd__LATEST

    Regards,

    Jitendra