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AWR1843: how to avoid road detection

Sriram S
Prodigy 230 points
Part Number: AWR1843
Other Parts Discussed in Thread: AWR2944, , IWRL6432

hi,

We are using the mrr demo project and in our case the sensor is mounted on the car at a height of 1 meter from the ground. A car is traveling at a speed of thirty to forty kilometers per hour and there is no object on the road, but the sensor detects an object eight to ten meters away. What is the false sensing problem and how can it be solved? Kindly respond to my request appropriately.

  • 0
    Prodigy 230 points

    We are using the mrr demo project and in our case the sensor is mounted on the car at a height of 1 meter from the ground. A car is traveling at a speed of thirty to forty kilometers per hour and there is no object on the road, but the sensor detects an object eight to ten meters away detecting continuously. What is the false sensing problem and how can it be solved? and if the detection of a road means how to avoid it, we suspect that the road may be detected by a sensor. Kindly respond to my request appropriately.

  • 0 in reply to Sriram S
    TI__Guru*** 141264 points

    Hi,

    You would need to filter the reflections from the road with a RANSAC algorithm

    See section 2.4.9 in the following TI Design Guide

    https://www.ti.com/lit/ug/tiduf01/tiduf01.pdf

    This algorithm has been implemented in the High End Corner Radar Demo for AWR2944 platform provided in the Radar Toolbox

    source\ti\examples\ADAS\high_end_corner_radar

    Thank you

    Cesar

  • 0 in reply to Cesar
    Prodigy 230 points

    Hi, 

    Thanks for your reply, this RANSAC Algorithm Can this RANSAC algorithm be implemented in the MRR project?

    If possible how to implement RANSAC algorithm in MRR project.

    And If the corner radar demo project is compatible with AWR1843, how can it be implemented for AWR1843.

  • 0 in reply to Sriram S
    TI__Guru*** 141264 points

    Hi,

    Yes, the RANSAC algorithm has been implemented on several platforms. Unfortunately we don't have a sample implementation for AWR1843.

    There is a simple example in the latest Radar toolbox release in Example Projects/True Ground Speed. This algorithm is the same that was used in the AWR2944 High End Corner Radar Demo.

    Example Projects/True Ground Speed. This example is based on the mmwave sdk demo L-SDK 5.3 I think and runs on IWRL6432 device

    Thank you

    Cesar

  • 0 in reply to Cesar
    Prodigy 230 points

    hi,

     i am getting  some  warning message how to resolve the warning, bellow the warning message

     <Linking>
    "../dss_mrr_linker.cmd", line 90: warning #10068-D: no matching section
    "../dss_mrr_linker.cmd", line 92: warning #10068-D: no matching section
    "../dss_mrr_linker.cmd", line 109: warning #10068-D: no matching section
    warning #10370-D: Possible codesize or performance degradation. Section ".text:SOC_init:libsoc_xwr18xx.ae674<soc.oe674>" has calls to rts routines, but rts is placed out of range from call site at 0x20002df0, or in a different section. To optimize codesize, either 1) place rts closer to call site, or 2) place rts in same section, or 3) compile with --disable_push_pop.
    warning #10370-D: Possible codesize or performance degradation. Section ".text:SOC_init:libsoc_xwr18xx.ae674<soc.oe674>" has calls to rts routines, but rts is placed out of range from call site at 0x20002cc0, or in a different section. To optimize codesize, either 1) place rts closer to call site, or 2) place rts in same section, or 3) compile with --disable_push_pop.

    Description Resource Path Location Type
    #10068-D no matching section dss_mrr_linker.cmd /mrr_18xx_dss line 90 C/C++ Problem
    #10068-D no matching section dss_mrr_linker.cmd /mrr_18xx_dss line 92 C/C++ Problem
    #10068-D no matching section dss_mrr_linker.cmd /mrr_18xx_dss line 109 C/C++ Problem

  • 0 in reply to Sriram S
    TI__Guru*** 141264 points

    Please start a new thread for these new questions

    thank you
    Cesar

  • 0 in reply to Cesar
    TI__Guru*** 141264 points

    I will close this thread

    thank you

    Cesar