AWR1843AOP: how to perform calibDcRangeSig in MRR lab

Tanoop Rajan

Part Number: AWR1843AOP
Other Parts Discussed in Thread: AWR1843

Tool/software:

Hi,

Currently while using MRR lab I am observing few ghost objects near my radar (4-6 m).I found in few e2e threads that this maybe due to Antenna coupling. And can be resolved using calibration.

In MRR lab I stumbled upon this function.

/**
*  @b Description
*  @n
*    Compensation of DC range antenna signature (unused currently)
*
*
*  @retval
*      Not Applicable.
*/
void MmwDemo_dcRangeSignatureCompensation(MmwDemo_DSS_DataPathObj *obj, uint8_t chirpPingPongId)
{
.....

How to integrate this function in the lab.

Regards

8 months ago

0 Samhitha Bobba 8 months ago

TI__Mastermind 19700 points

Hi Tanoop,

Can you please refer to the following E2Es -

Regards,

Samhitha

0 Tanoop Rajan 8 months ago in reply to Samhitha Bobba

Intellectual 331 points

Hi Samhitha,

These threads are talking about Range Bias and Rx channel Gain compensation, and not explicitly about how to compensate for the RX and TX antenna coupling.

I am not getting range bias ie. I am not getting false range values but sometimes getting ghost object near to the radar(4-5m) .

Can you guide me through how to include this function ( MmwDemo_dcRangeSignatureCompensation ) in dss

Regards

0 Samhitha Bobba 8 months ago in reply to Tanoop Rajan

TI__Mastermind 19700 points

Hi Tanoop,

Please find the implementation in mmwave_sdk_03_06_02_00-LTS\packages\ti\datapath\dpu\rangeproc\src\rangeprocdsp.c. You can check the integration of this function in AWR1843 demo present in the SDK .

Regards,

Samhitha

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AWR1843AOP: how to perform calibDcRangeSig in MRR lab