Other Parts Discussed in Thread: TIDEP-01012
I'm using awr2243 4 chip cascade with 16 Rx and 12 Tx, three Tx for elevation angle estimation.
In user's guide : AWRx Cascaded Radar RF Evaluation Module, it saids +-30 deg elevation 3dB, so I'm assuming thats field of view.
but in my test, maximum field of view is +-10 degrees, and radar failed to capture a metal cone reflector located higher than 10 degrees.
is there any operation mode or input parameter i can change so that I can widen my field of view in elevation angle?
I'm currently using MIMO mode using all antennas and Azimuth angle estimation works just fine with +-60 degrees.
my parameters from mmwave JSON file are as follows
"regulatoryRestrictions": {
"frequencyRangeBegin_GHz": 77,
"frequencyRangeEnd_GHz": 81,
"maxBandwidthAllowed_MHz": 4000,
"maxTransmitPowerAllowed_dBm": 12
},
"systemConfig": {
"summary": "This is a comments field not passed to device",
"sceneParameters": {
"ambientTemperature_degC": 20,
"maxDetectableRange_m": 10,
"rangeResolution_cm": 5,
"maxVelocity_kmph": 26,
"velocityResolution_kmph": 2,
"measurementRate": 10,
"typicalDetectedObjectRCS": 1.0
}
},
"mmWaveDevices": [
{
"mmWaveDeviceId": 0,
"rfConfig": {
"waveformType": "legacyFrameChirp",
"MIMOScheme": "TDM",
"rlCalibrationDataFile": "",
"rlChanCfg_t": {
"rxChannelEn": "0xF",
"txChannelEn": "0x7",
"cascading": 1,
"cascadingPinoutCfg": "0x0"
},
"rlAdcOutCfg_t": {
"fmt": {
"b2AdcBits": 2,
"b8FullScaleReducFctr": 0,
"b2AdcOutFmt": 1
}
},
"rlLowPowerModeCfg_t": {
"lpAdcMode": 0
},
"rlProfiles": [
{
"rlProfileCfg_t": {
"profileId": 0,
"pfVcoSelect": "0x0",
"pfCalLutUpdate": "0x0",
"startFreqConst_GHz": 77.0,
"idleTimeConst_usec": 5.0,
"adcStartTimeConst_usec": 6.0,
"rampEndTime_usec": 40.0,
"txOutPowerBackoffCode": "0x0",
"txPhaseShifter": "0x0",
"freqSlopeConst_MHz_usec": 78.986000061035156,
"txStartTime_usec": 0.0,
"numAdcSamples": 256,
"digOutSampleRate": 8000.0,
"hpfCornerFreq1": 0,
"hpfCornerFreq2": 0,
"rxGain_dB": "0x30"
}
}
thank you.
