CCS/AWR1642BOOST-ODS: 1642 ODS How to get the target peakval?

Mr.Wang

Tool/software: Code Composer Studio

When i read the sorce code from the "lab0004_obstacle_detection", i found the detect object peakval is zero . How can i get the target peakval?

void populateOutputs(ODSDemo_DataPathObj *obj)

{

uint32_t ik,jk;

float oneQFormat = (float) (1U << gMmwDssMCB.dataPathObj[0].xyzOutputQFormat);

float formatConversion = oneQFormat/((float)gMmwDssMCB.cliCfg[0].dbscanCfg.fixedPointScale);

/* 1. Detected Object List */

for (ik = 0; ik < obj->numDetObj; ik ++)

{

obj->detObjFinal[ik].rangeIdx = obj->detObjRaw[ik].rangeIdx;

obj->detObjFinal[ik].speedIdx = obj->detObjRaw[ik].speedIdx;

obj->detObjFinal[ik].peakVal = 0;

obj->detObjFinal[ik].x = (int16_t)(obj->detObjRaw[ik].x * oneQFormat + 0.5);

obj->detObjFinal[ik].y = (int16_t)(obj->detObjRaw[ik].y * oneQFormat + 0.5);

obj->detObjFinal[ik].z = (int16_t)(obj->detObjRaw[ik].z * oneQFormat + 0.5);

}

obj->numDetObjFinal = obj->numDetObj;

/* 2. Clustering output for the point cloud subframe. */

jk = 0;

for (ik = 0; ik < obj->dbscanOutputData->numCluster; ik ++)

{

if (obj->dbscanOutputData->report[ik].numPoints == 0)

{

continue;

}

obj->clusterOpFinal[jk].xCenter = (int16_t)((float)(obj->dbscanOutputData->report[ik].xCenter)*formatConversion + 0.5);

obj->clusterOpFinal[jk].yCenter = (int16_t)((float)(obj->dbscanOutputData->report[ik].yCenter)*formatConversion + 0.5);

obj->clusterOpFinal[jk].zCenter = (int16_t)((float)(obj->dbscanOutputData->report[ik].zCenter)*formatConversion + 0.5);

obj->clusterOpFinal[jk].xSize = (int16_t)((float)(obj->dbscanOutputData->report[ik].xSize)*formatConversion + 0.5);

obj->clusterOpFinal[jk].ySize = (int16_t)((float)(obj->dbscanOutputData->report[ik].ySize)*formatConversion + 0.5);

obj->clusterOpFinal[jk].zSize = (int16_t)((float)(obj->dbscanOutputData->report[ik].zSize)*formatConversion + 0.5);

jk ++;

}

obj->numClusterFinal = obj->dbscanOutputData->numCluster;

}

over 5 years ago

0 Jitendra Gupta over 5 years ago

TI__Guru 69960 points

Hi Mr. Wang,

This application is based on mmw demo of mmwave SDK which you can refer to find out the calculation of peakval.

mMWave SDK 2.1 mmw demo : packages\ti\demo\xwr16xx\mmw\dss\dss_data_path.c: MmwDemo_interFrameProcessing()

            for(detIdx2=0; detIdx2 <numDetObjPerCfar; detIdx2++)
            {
                if (numDetObj2D < MAX_DET_OBJECTS_RAW)
                {
                    obj->detObj2DRaw[numDetObj2D].dopplerIdx = dopplerLine;
                    obj->detObj2DRaw[numDetObj2D].rangeIdx = obj->cfarDetObjIndexBuf[detIdx2];
                    obj->detObj2DRaw[numDetObj2D].peakVal = obj->sumAbsRange[(detIdx1 & 0x1) *
                        obj->numRangeBins + obj->cfarDetObjIndexBuf[detIdx2]];
                    numDetObj2D++;
                }
            }

Regards,

Jitendra

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CCS/AWR1642BOOST-ODS: 1642 ODS How to get the target peakval?