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Original question:

TM4C1294NCPDT: How does the parameter configuration of radar tracking algorithm affect the radar recognition effect?

TM4C1294NCPDT: What parameters are involved in improving radar detection accuracy?

ctc ctc
Intellectual 300 points
Part Number: TM4C1294NCPDT
Other Parts Discussed in Thread: IWR1642, AWR1642, TIDEP-0090

Hello,everyone! I think i need you help.

Because of the test needs, it is hoped that the radar can have a better detection accuracy at 80-90 meters and can observe the vehicle parking.

For this reason, I set a file referring to mmWave Sensing Estimator, as shown below

sensorStop
flushCfg
dfeDataOutputMode 1
channelCfg 15 1 0
adcCfg 2 1
adcbufCfg 0 1 1 1
profileCfg 0 77 2 4.20 41.88 0 0 8.21 1 223 6080 0 0 48
chirpCfg 0 0 0 0 0 0 0 1
frameCfg 0 0 120 0 50 1 0
lowPower 0 1
guiMonitor 1 0 0 0
cfarCfg 4 12 2 16 8 4 0 63 63 0 1
doaCfg 3 0 1047 3 600 10 100
trackingCfg 1 0 250 1 0 0 0 90
compRangeBiasAndRxChanPhase -0.0438848 0.12320 -0.62793 0.08932 -0.50342 -0.03458 -0.58853 0.06812 -0.69101 -0.79391 -0.60803 -0.63580 -0.45255 -0.70901 -0.26627 -0.73044 -0.46078
sensorStart

With this configuration file, my radar can track vehicles far away from the radar, with a maximum tracking distance of 113 meters. However, the first position where a vehicle close to the radar can be identified is 90 meters. Theoretically, it should be able to appear from 100 meters. Why?

So I have the following questions:

【1】 What's wrong with my settings?

【2】 Can you ask if there is a reference document for the description and setting of all the parameters of the cfg file?

【3】 With regard to increasing the number of point clouds at 80-90 meters, in addition to modifying the above files, what other relevant parameters have an impact on the detection effect

I really hope to get help from anyone, and I'm very grateful！

Regards,

ctc

  • 0 in reply to ctc ctc
    TI__Guru*** 149104 points

    Hi,

    In the chirpCfg, I see that only Tx1 is enabled. Did you try to enable both Tx1 and Tx2 at the same time.

    Are you using the xWR1642BOOST antenna?

    Usually, for AWR1642 best performance is around 80m with both Tx enabled.

    With xWR1642BOOST antennae you will not be able to have robust detection beyond 80m when enabling both Tx

    thank you

    Cesar

  • 0 in reply to Cesar
    Intellectual 300 points

    Hi,Cesar.My radar is IWR1642.

    In order to meet the requirement of detecting 100m target, I refer to the Design Guide:

    <TIDEP-0090

    Traffic Monitoring Object Detection and Tracking Reference Design Using Single-Chip mmWave RadarSensor>

    Long Range NON-MIMO detection configuration in the document. The transmitting antenna here only enables TX1,like this

    From the document, it can be seen that enabling two antennas does not meet the requirement that I can detect 100 meters.

    Therefore, I use mmWave Sensing Estimator to verify whether the parameters are correct. Many files have been modified, but some files have not been generated after being configured on the radar. as follows

    sensorStop
    flushCfg
    dfeDataOutputMode 1
    channelCfg 15 1 0
    adcCfg 2 1
    adcbufCfg 0 1 1 1
    profileCfg 0 77 2 4.20 44.73 0 0 8.45 1 235 5946 0 0 48
    chirpCfg 0 0 0 0 0 0 0 1
    frameCfg 0 0 114 0 50 1 0
    lowPower 0 1
    guiMonitor 1 0 0 0
    cfarCfg 4 12 2 16 8 4 0 63 63 0 1
    doaCfg 3 0 1047 3 600 10 100
    trackingCfg 1 0 250 1 0 0 0 90
    compRangeBiasAndRxChanPhase -0.0438848 0.12320 -0.62793 0.08932 -0.50342 -0.03458 -0.58853 0.06812 -0.69101 -0.79391 -0.60803 -0.63580 -0.45255 -0.70901 -0.26627 -0.73044 -0.46078
    sensorStart

    Then I don't know what went wrong. So I want to ask whether there are detailed descriptions of the parameters related to cfg file configuration? Will modifying cfarcfg and doacfg improve the detection effect? How to modify? thank you

  • 0 in reply to Cesar
    Intellectual 300 points

    Hi.Cesar.I have another question

    I have multiple iwr6142 radar boards. The same configuration file has different effects on different radar boards. One can detect many point clouds, while the other has few. In this case, can I improve the problem that there are few point clouds on another radar panel by modifying the configuration file?

    Regards，

    ctc

  • 0 in reply to ctc ctc
    TI__Guru*** 149104 points

    Hi,

    Unfortunately the IWR1642 will not be able to detect a 100m target with 1Tx. There is not sufficient power.

    In our experiments, we are able to detect a car ~ 80m with 2Tx . Please see the SRR demo provided in the Automotive Toolbox Lab.

    Please understand this before we discuss other questions.

    Thank you

    Cesar