cmProc5.h/c : Added initial implementation of cmReflectCalc.
This commit is contained in:
kevin
parent
887189b4d4
commit
28d2de022a
292
cmProc5.c
292
cmProc5.c
@ -645,225 +645,139 @@ cmRC_t cmPhatWrite( cmPhat_t* p, const char* dirStr )
|
|||||||
return rc;
|
return rc;
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef NOTDEF
|
|
||||||
cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirStr )
|
//=======================================================================================================================
|
||||||
|
//
|
||||||
|
//
|
||||||
|
|
||||||
|
cmReflectCalc_t* cmReflectCalcAlloc( cmCtx* ctx, cmReflectCalc_t* p, const cmGoldSigArg_t* gsa, float phat_alpha, unsigned phat_mult )
|
||||||
{
|
{
|
||||||
|
cmReflectCalc_t* op = cmObjAlloc(cmReflectCalc_t,ctx,p);
|
||||||
cmRC_t rc = cmOkRC;
|
cmRC_t rc = cmOkRC;
|
||||||
cmGoldSigArg_t sa;
|
|
||||||
cmGoldSig_t* s = NULL;
|
|
||||||
cmPhat_t* p = NULL;
|
|
||||||
char* path = NULL;
|
|
||||||
unsigned dspFrmCnt = 256;
|
|
||||||
unsigned listenDelaySmp = 8196;
|
|
||||||
double noiseGain = 0.05;
|
|
||||||
unsigned chIdx = 0;
|
|
||||||
cmSample_t* yV = NULL;
|
|
||||||
unsigned yN = 0;
|
|
||||||
double phatAlpha = 0.5;
|
|
||||||
unsigned phatMult = 4.0;
|
|
||||||
double nonLinExpo = 4.0;
|
|
||||||
cmVectArray_t* outVA = NULL;
|
|
||||||
cmVectArray_t* inVA = NULL;
|
|
||||||
cmVectArray_t* statusVA = NULL;
|
|
||||||
unsigned bsiN = 4;
|
|
||||||
unsigned bsiV[bsiN]; // known signal onset in absolute samples
|
|
||||||
unsigned esiV[bsiN]; // known signal offset
|
|
||||||
unsigned lsiV[bsiN]; // end of listen time (when cmPhatChExec()) is run.
|
|
||||||
unsigned dsiV[bsiN]; // detection time
|
|
||||||
unsigned i,j;
|
|
||||||
|
|
||||||
sa.chN = 1;
|
// allocate the Gold code signal generator
|
||||||
sa.srate = 44100.0;
|
if( (p->gs = cmGoldSigAlloc(ctx,NULL,NULL)) == NULL )
|
||||||
sa.lfsrN = 8;
|
|
||||||
sa.mlsCoeff0 = 0x8e;
|
|
||||||
sa.mlsCoeff1 = 0x96;
|
|
||||||
sa.samplesPerChip = 64;
|
|
||||||
sa.rcosBeta = 0.5;
|
|
||||||
sa.rcosOSFact = 4;
|
|
||||||
sa.carrierHz = 17000.0;
|
|
||||||
sa.envMs = 50.0;
|
|
||||||
|
|
||||||
// allocate the the id signals
|
|
||||||
if( (s = cmGoldSigAlloc( ctx, NULL, &sa ) == NULL )
|
|
||||||
return cmErrMsg(&ctx->err, cmSubSysFailRC, "Signal allocate failed.");
|
|
||||||
|
|
||||||
// set the post signal listen delay to half the signal length
|
|
||||||
listenDelaySmp = s->sigN/2;
|
|
||||||
|
|
||||||
// allocate a PHAT detector
|
|
||||||
if( (p = cmPhatAlloc(ctx,NULL,sa.chN,s->sigN, phatAlpha, phatMult, kDebugAtPhatFl ) == NULL )
|
|
||||||
{
|
{
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "PHAT allocate failed.");
|
rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"Gold sig allocate failed.");
|
||||||
goto errLabel;
|
goto errLabel;
|
||||||
}
|
}
|
||||||
|
|
||||||
// register an id signal with the PHAT detector
|
// allocate the PHAT object
|
||||||
if( cmPhatSetId(p, chIdx, s->ch[chIdx].mdV, s->sigN ) != cmOkRC )
|
if( (p->phat = cmPhatAlloc(ctx,NULL,0,0,0,0,0)) == NULL )
|
||||||
{
|
{
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "PHAT setId failed.");
|
rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"PHAT allocate failed.");
|
||||||
goto errLabel;
|
goto errLabel;
|
||||||
}
|
}
|
||||||
|
|
||||||
// generate an input test signal containing bsiN id signals
|
op->va = cmVectArrayAlloc(ctx,kSampleVaFl);
|
||||||
if( atSignalGen(s,chIdx,p->fhN,s->sigN,bsiV,bsiN,noiseGain,&yV,&yN) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"Signal generation failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
// bsiV[] now holds signal onsets. Set esiV[] to signal offsets.
|
// allocate 'this'
|
||||||
atVOU_AddVVS(esiV,bsiV,bsiN,s->sigN );
|
if( gsa != NULL )
|
||||||
|
rc = cmReflectCalcInit(op,gsa,phat_alpha,phat_mult);
|
||||||
|
|
||||||
// set lsiV[] to end-of-listen location
|
|
||||||
atVOU_AddVVS(lsiV,esiV,bsiN,listenDelaySmp);
|
|
||||||
|
|
||||||
// zero the detection vector
|
|
||||||
atVOU_Zero(dsiV,bsiN);
|
|
||||||
|
|
||||||
// allocate a vector array to record the PHAT input signals
|
|
||||||
if( cmVectArrayAlloc(ctx,&inVA,kSampleVaFl) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray inVA alloc failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
// allocate a vector array to record the PHAT correlation output signals
|
|
||||||
if( cmVectArrayAlloc(ctx,&outVA,kSampleVaFl) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray outVA alloc failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
// allocate a vector array to record the PHAT status
|
|
||||||
if( cmVectArrayAlloc(ctx,&statusVA,kSampleVaFl) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray statusVA alloc failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// for each 'dspFrmCnt' samples in the input signal
|
|
||||||
for(i=0,j=0; j<bsiN && i<=yN-dspFrmCnt; i+=dspFrmCnt)
|
|
||||||
{
|
|
||||||
// store a copy of the input signal
|
|
||||||
cmVectArrayAppendS(inVA,yV+i,dspFrmCnt);
|
|
||||||
|
|
||||||
// feed the next dspFrmCnt samples to the PHAT detector
|
|
||||||
cmPhatExec(p,yV+i,dspFrmCnt);
|
|
||||||
|
|
||||||
// if the approximate end of an id signal is encountered
|
|
||||||
if( lsiV[j] <= i && i < lsiV[j] + dspFrmCnt )
|
|
||||||
{
|
|
||||||
// execute the PHAT correlator
|
|
||||||
cmPhatChExec( p, chIdx, -1, -1 );
|
|
||||||
|
|
||||||
// apply non-linear exponent to the correlation vector
|
|
||||||
cmVOS_PowV(p->xV,p->fhN,nonLinExpo);
|
|
||||||
|
|
||||||
// locate the corr. peak inside the listening window
|
|
||||||
// (the detection window is last 'detectWndSmp' samples in the corr. vector )
|
|
||||||
unsigned detectWndSmp = 2*listenDelaySmp;
|
|
||||||
dsiV[j] = cmVOS_ArgMax( p->xV + p->fhN - detectWndSmp, detectWndSmp);
|
|
||||||
|
|
||||||
// convert the pk index to absolute time
|
|
||||||
dsiV[j] = i + dspFrmCnt - detectWndSmp + dsiV[j];
|
|
||||||
|
|
||||||
// sig beg sig end detect begin dtct end detect
|
|
||||||
cmSample_t v[] = { bsiV[j], esiV[j], lsiV[j]-detectWndSmp, lsiV[j], dsiV[j] };
|
|
||||||
|
|
||||||
// store the detection information
|
|
||||||
cmVectArrayAppendS(statusVA,v,sizeof(v)/sizeof(v[0]));
|
|
||||||
|
|
||||||
// store the correlation output vector
|
|
||||||
cmVectArrayAppendS(outVA,p->xV,p->fhN);
|
|
||||||
|
|
||||||
j += 1;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// write inVA
|
|
||||||
if( cmVectArrayWrite(inVA,path = atMakePath(&ctx->err,path,"phatIn","va",dirStr,NULL)) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray outVA write failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
// write outVA
|
|
||||||
if( cmVectArrayWrite(outVA,path = atMakePath(&ctx->err,path,"phatOut","va",dirStr,NULL)) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray outVA write failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
// write statusVA
|
|
||||||
if( cmVectArrayWrite(statusVA,path = atMakePath(&ctx->err,path,"phatStatus","va",dirStr,NULL)) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray statusVA write failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
|
||||||
|
|
||||||
errLabel:
|
errLabel:
|
||||||
cmVectArrayFree(&outVA);
|
if( rc != cmOkRC )
|
||||||
cmVectArrayFree(&inVA);
|
cmReflectCalcFree(&op);
|
||||||
|
|
||||||
if( cmPhatFree(&p) != cmOkRC )
|
|
||||||
cmErrMsg(&ctx->err,cmSubSysFailRC,"PHAT free failed.");
|
|
||||||
|
|
||||||
if( atSignalFree(&s) != cmOkRC )
|
return op;
|
||||||
cmErrMsg(&ctx->err,cmSubSysFailRC,"Signal free failed.");
|
|
||||||
|
}
|
||||||
|
|
||||||
|
cmRC_t cmReflectCalcFree( cmReflectCalc_t** pp )
|
||||||
|
{
|
||||||
|
cmRC_t rc = cmOkRC;
|
||||||
|
|
||||||
|
if( pp == NULL || *pp == NULL )
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
cmReflectCalc_t* p = *pp;
|
||||||
|
|
||||||
|
if((rc = cmReflectCalcFinal(p)) != cmOkRC )
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
cmVectArrayFree(&p->va);
|
||||||
|
cmGoldSigFree(&p->gs);
|
||||||
|
cmPhatFree(&p->phat);
|
||||||
|
|
||||||
|
cmMemFree(p);
|
||||||
|
*pp = NULL;
|
||||||
|
|
||||||
return rc;
|
return rc;
|
||||||
}
|
}
|
||||||
|
|
||||||
cmRC_t cmPhatTest2( cmCtx* ctx )
|
cmRC_t cmReflectCalcInit( cmReflectCalc_t* p, const cmGoldSigArg_t* gsa, float phat_alpha, unsigned phat_mult )
|
||||||
{
|
{
|
||||||
cmRC_t rc = cmOkRC;
|
cmRC_t rc;
|
||||||
cmPhat_t* p = NULL;
|
if((rc = cmReflectCalcFinal(p)) != cmOkRC )
|
||||||
unsigned hN = 16;
|
return rc;
|
||||||
float alpha = 1.0;
|
|
||||||
unsigned mult = 4;
|
|
||||||
|
|
||||||
cmSample_t hV[] = { 4,3,2,1, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
|
// initialize the Gold code signal generator
|
||||||
cmSample_t x0V[] = { 4,3,2,1, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
|
if((rc = cmGoldSigInit(p->gs,gsa)) != cmOkRC )
|
||||||
cmSample_t x1V[] = { 0,0,0,0, 4,3,2,1, 0,0,0,0, 0,0,0,0 };
|
{
|
||||||
cmSample_t x2V[] = { 0,0,0,0, 0,0,0,0, 4,3,2,1, 0,0,0,0 };
|
rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"Gold code signal initialize failed.");
|
||||||
cmSample_t x3V[] = { 0,0,0,0, 0,0,0,0, 0,0,0,0, 4,3,2,1 };
|
goto errLabel;
|
||||||
|
}
|
||||||
|
|
||||||
cmSample_t* xV[] = { x0V, x1V, x2V, x3V };
|
unsigned phat_chN = 1;
|
||||||
unsigned chN = sizeof(xV)/sizeof(xV[0]);
|
unsigned phat_hN = p->gs->sigN;
|
||||||
|
unsigned phat_flags = 0;
|
||||||
|
unsigned phat_chIdx = 0;
|
||||||
|
|
||||||
|
// initialize the PHAT
|
||||||
|
if((rc = cmPhatInit(p->phat,phat_chN,phat_hN,phat_alpha,phat_mult,phat_flags)) != cmOkRC )
|
||||||
|
{
|
||||||
|
rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"PHAT intialize failed.");
|
||||||
|
goto errLabel;
|
||||||
|
}
|
||||||
|
|
||||||
|
// register a target signal with the PHAT
|
||||||
|
if((rc = cmPhatSetId( p->phat, phat_chIdx, p->gs->ch[phat_chIdx].mdV, p->gs->sigN )) != cmOkRC )
|
||||||
|
{
|
||||||
|
rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"PHAT signal registration failed.");
|
||||||
|
goto errLabel;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
p->xi = 0;
|
||||||
|
p->zeroFl = false;
|
||||||
|
|
||||||
|
errLabel:
|
||||||
|
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
cmRC_t cmReflectCalcFinal( cmReflectCalc_t* p )
|
||||||
|
{
|
||||||
|
cmGoldSigFinal(p->gs);
|
||||||
|
cmPhatFinal(p->phat);
|
||||||
|
return cmOkRC;
|
||||||
|
}
|
||||||
|
|
||||||
|
cmRC_t cmReflectCalcExec( cmReflectCalc_t* p, const cmSample_t xV, cmSample_t* yV, unsigned xyN )
|
||||||
|
{
|
||||||
unsigned i;
|
unsigned i;
|
||||||
|
|
||||||
if(cmPhatAlloc(ctx,&p,chN,hN,alpha,mult,kNoFlagsAtPhatFl) != cmOkRC )
|
for(i=0; i<xyN; ++i,++p->xi)
|
||||||
{
|
{
|
||||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"cmPhatAlloc() failed.");
|
if( p->xi < p->gs->sigN )
|
||||||
goto errLabel;
|
yV[i] = p->gs->ch[0].mdV[p->xi];
|
||||||
|
else
|
||||||
|
yV[i] = 0;
|
||||||
|
|
||||||
|
if( p->xi == p->phat->fhN )
|
||||||
|
{
|
||||||
|
p->xi = 0;
|
||||||
|
|
||||||
|
cmPhatChExec(p->phat,0,0,0);
|
||||||
|
|
||||||
|
if( p->va != NULL )
|
||||||
|
cmVectArrayAppendS(p->va,p->phat->xV,p->phat->fhN );
|
||||||
}
|
}
|
||||||
|
|
||||||
for(i=0; i<chN; ++i)
|
|
||||||
if( cmPhatSetId(p,i,hV,hN) != cmOkRC )
|
|
||||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"cmPhatSetId() failed.");
|
|
||||||
|
|
||||||
|
|
||||||
for(i=0; i<chN; ++i)
|
|
||||||
{
|
|
||||||
cmPhatReset(p);
|
|
||||||
|
|
||||||
if( cmPhatExec(p,xV[i],hN) != cmOkRC )
|
|
||||||
{
|
|
||||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"cmPhatExec() failed.");
|
|
||||||
goto errLabel;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
cmPhatChExec(p, i, -1, -1);
|
return cmOkRC;
|
||||||
cmVOS_PrintL(&ctx->printRpt,"x:",p->xV,1,p->fhN);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
errLabel:
|
|
||||||
|
|
||||||
cmPhatFree(&p);
|
|
||||||
|
|
||||||
|
|
||||||
return rc;
|
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
|
|||||||
28
cmProc5.h
28
cmProc5.h
@ -156,8 +156,7 @@ extern "C" {
|
|||||||
// Allocate a PHAT based multi-channel correlator.
|
// Allocate a PHAT based multi-channel correlator.
|
||||||
// 'chN' is the maximum count of id signals to be set via cmPhatSetId().
|
// 'chN' is the maximum count of id signals to be set via cmPhatSetId().
|
||||||
// 'hN' is the the length of the id signal in samples.
|
// 'hN' is the the length of the id signal in samples.
|
||||||
// 'alpha' weight used to emphasize the frequencies where the
|
// 'alpha' weight used to emphasize the frequencies where the id signal contains energy.
|
||||||
// id signal contains energy.
|
|
||||||
// 'mult' * 'hN' is the correlation length (fhN)
|
// 'mult' * 'hN' is the correlation length (fhN)
|
||||||
// 'flags' See kDebugAtPhatFl and kWndAtPhatFl.
|
// 'flags' See kDebugAtPhatFl and kWndAtPhatFl.
|
||||||
cmPhat_t* cmPhatAlloc( cmCtx* ctx, cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags );
|
cmPhat_t* cmPhatAlloc( cmCtx* ctx, cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags );
|
||||||
@ -191,8 +190,29 @@ extern "C" {
|
|||||||
|
|
||||||
cmRC_t cmPhatWrite( cmPhat_t* p, const char* dirStr );
|
cmRC_t cmPhatWrite( cmPhat_t* p, const char* dirStr );
|
||||||
|
|
||||||
cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirFn );
|
|
||||||
cmRC_t cmPhatTest2( cmCtx* ctx );
|
//=======================================================================================================================
|
||||||
|
//
|
||||||
|
//
|
||||||
|
|
||||||
|
typedef struct
|
||||||
|
{
|
||||||
|
cmObj obj;
|
||||||
|
|
||||||
|
cmGoldSig_t* gs;
|
||||||
|
unsigned xi; // index into gs->ch[0].mdV[] of the next sample to output
|
||||||
|
bool zeroFl;
|
||||||
|
cmPhat_t* phat;
|
||||||
|
cmVectArray_t* va;
|
||||||
|
} cmReflectCalc_t;
|
||||||
|
|
||||||
|
|
||||||
|
cmReflectCalc_t* cmReflectCalcAlloc( cmCtx* ctx, cmReflectCalc_t* p, const cmGoldSigArg_t* gsa, float phat_alpha, unsigned phat_mult );
|
||||||
|
cmRC_t cmReflectCalcFree( cmReflectCalc_t** pp );
|
||||||
|
cmRC_t cmReflectCalcInit( cmReflectCalc_t* p, const cmGoldSigArg_t* gsa, float phat_alpha, unsigned phat_mult );
|
||||||
|
cmRC_t cmReflectCalcFinal( cmReflectCalc_t* p );
|
||||||
|
cmRC_t cmReflectCalcExec( cmReflectCalc_t* p, const cmSample_t xV, cmSample_t* yV, unsigned xyN );
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user