openbts/TransceiverRAD1/sigProcLibTest.cpp

/*
* Copyright (c) 2008, 2010 Kestrel Signal Processing, Inc.
* Copyright 2014 Range Networks, Inc.
*
* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribution.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

*/

/*
Contributors:
Harvind S. Samra, hssamra@kestrelsp.com
*/


#include "sigProcLib.h"
#include <Logger.h>
#include <Configuration.h>
#include <GSMCommon.h>
using namespace GSM;

using namespace std;

ConfigurationTable gConfig;

int main(int argc, char **argv) {

  gLogInit("sigProcLibTest","DEBUG");

  int samplesPerSymbol = 1;

  int TSC = 2;

  sigProcLibSetup(samplesPerSymbol);
  
  signalVector *gsmPulse = generateGSMPulse(2,samplesPerSymbol);
  cout << *gsmPulse << endl;

  signalVector duh(600);
  duh.fill(1.0);
  frequencyShift(&duh,&duh,-2.0*M_PI*(400.0/1083.0));

  cout << duh;

  exit(1);

  BitVector RACHBurstStart = "01010101";
  BitVector RACHBurstRest = "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";

  BitVector RACHBurst(BitVector(RACHBurstStart,gRACHSynchSequence),RACHBurstRest);
 

  signalVector *RACHSeq = modulateBurst(RACHBurst,
                                        *gsmPulse,
                                        9,
                                        samplesPerSymbol);

  generateRACHSequence(*gsmPulse,samplesPerSymbol);

  complex a; float t;
  detectRACHBurst(*RACHSeq, 5, samplesPerSymbol,&a,&t); 

  //cout << *RACHSeq << endl;
  //signalVector *autocorr = correlate(RACHSeq,RACHSeq,NULL,NO_DELAY);

  //cout << *autocorr;

  //exit(1);
 

  /*signalVector x(6500);
  x.fill(1.0);

  frequencyShift(&x,&x,0.48*M_PI);

  signalVector *y = polyphaseResampleVector(x,96,65,NULL);

  cout << *y << endl;
 
  exit(1);*/

  //CommSig normalBurstSeg = "0000000000000000000000000000000000000000000000000000000000000";

  BitVector normalBurstSeg = "0000101010100111110010101010010110101110011000111001101010000";

  BitVector normalBurst(BitVector(normalBurstSeg,gTrainingSequence[TSC]),normalBurstSeg);


  generateMidamble(*gsmPulse,samplesPerSymbol,TSC);


  signalVector *modBurst = modulateBurst(normalBurst,*gsmPulse,
                                         0,samplesPerSymbol);

  
  //delayVector(*rsVector2,6.932);

  complex ampl = 1;
  float TOA = 0;

  //modBurst = rsVector2;
  //delayVector(*modBurst,0.8);

  /*
  signalVector channelResponse(4);
  signalVector::iterator c=channelResponse.begin();
  *c = (complex) 9000.0; c++;
  *c = (complex) 0.4*9000.0; c++; c++;
  *c = (complex) -1.2*0;

  signalVector *guhBurst = convolve(modBurst,&channelResponse,NULL,NO_DELAY);
  delete modBurst; modBurst = guhBurst;
  */

  signalVector *chanResp;
  /*
  double noisePwr = 0.001/sqrtf(2);
  signalVector *noise = gaussianNoise(modBurst->size(),noisePwr);
  */
  float chanRespOffset;
  analyzeTrafficBurst(*modBurst,TSC,8.0,samplesPerSymbol,&ampl,&TOA,1,true,&chanResp,&chanRespOffset);
  //addVector(*modBurst,*noise);

  cout << "ampl:" << ampl << endl;
  cout << "TOA: " << TOA << endl;
  //cout << "chanResp: " << *chanResp << endl;
  SoftVector *demodBurst = demodulateBurst(*modBurst,*gsmPulse,samplesPerSymbol,(complex) ampl, TOA);
  
  cout << *demodBurst << endl;

  /*
  COUT("chanResp: " << *chanResp);

  signalVector *w,*b;
  designDFE(*chanResp,1.0/noisePwr,7,&w,&b); 
  COUT("w: " << *w);
  COUT("b: " << *b);

 
  SoftSig *DFEBurst = equalizeBurst(*modBurst,TOA-chanRespOffset,samplesPerSymbol,*w,*b);
  COUT("DFEBurst: " << *DFEBurst);

  delete gsmPulse;
  delete RACHSeq;
  delete modBurst;
  delete sendLPF;
  delete rcvLPF;
  delete rsVector;
  //delete rsVector2;
  delete autocorr;
  delete chanResp;
  delete noise;
  delete demodBurst;
  delete w;
  delete b;
  delete DFEBurst;  
  */

  sigProcLibDestroy();

}