Other Parts Discussed in Thread: IWR1443
I am using the IWR1443 boost sensor board. When I am trying to localize objects in a room without the clutter removal option enabled there is always a very high peak in the range profile around 3-30cm.
It seems like there are ghost points detected right in front of the sensor although there is no object infront of it. This peak in the range profil remains constant at approx 100dB even if I move the sensor away from or closer to an object.
Do you have any idea why this happens and how to counteract this phenomenon?
The image below illustrates the range profile peak around 3-30cm as it is seen in the mmWave Demo Visualizer.
I am using the following configuration generated by the Visualizer:
% ***************************************************************
% Created for SDK ver:02.01
% Created using Visualizer ver:2.1.0.3
% Frequency:77
% Platform:xWR14xx
% Scene Classifier:best_range_res
% Azimuth Resolution(deg):15 + Elevation
% Range Resolution(m):0.044
% Maximum unambiguous Range(m):5
% Maximum Radial Velocity(m/s):2
% Radial velocity resolution(m/s):0.26
% Frame Duration(msec):33.333
% Range Detection Threshold (dB):15
% Range Peak Grouping:enabled
% Doppler Peak Grouping:enabled
% Static clutter removal:disabled
% ***************************************************************
sensorStop
flushCfg
dfeDataOutputMode 1
channelCfg 15 7 0
adcCfg 2 1
adcbufCfg 0 1 0 1
profileCfg 0 77 105 7 57.14 0 0 70 1 128 2604 0 0 30
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 4
chirpCfg 2 2 0 0 0 0 0 2
frameCfg 0 2 16 0 33.333 1 0
lowPower 0 1
guiMonitor 1 1 0 0 0 1
cfarCfg 0 2 8 4 3 0 1280
peakGrouping 1 1 1 1 114
multiObjBeamForming 1 0.5
clutterRemoval 0
calibDcRangeSig 0 -5 8 256
compRangeBiasAndRxChanPhase 0.0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
measureRangeBiasAndRxChanPhase 0 1.5 0.2
CQRxSatMonitor 0 3 5 123 0
CQSigImgMonitor 0 63 4
analogMonitor 1 1
sensorStart
Thanks for your response.
