RadarSim/SigGen/Radar001/RadarSignalGenerator.cpp

//
// Academic License - for use in teaching, academic research, and meeting
// course requirements at degree granting institutions only.  Not for
// government, commercial, or other organizational use.
// File: RadarSignalGenerator.cpp
//
// MATLAB Coder version            : 5.3
// C/C++ source code generated on  : 25-Apr-2023 21:10:09
//

// Include Files
#include "RadarSignalGenerator.h"
#include "LinearFMWaveform.h"
#include "../rt_nonfinite.h"
#include <cmath>

// Function Definitions
//
// RADARSIGNALGENERATOR1 此处显示有关此函数的摘要
//    此处显示详细说明
//
// Arguments    : double sig[400000]
//                double *fs
//                double *PRF
// Return Type  : void
//
void RadarSignalGenerator001(double sig[400000], double *fs, double *PRF)
{
  static creal_T xt[80000];
  static double dv[80000];
  coder::phased::LinearFMWaveform wavGen;
  //      simTime = 2e-5;
  *fs = 4.0E+9;
  *PRF = 49999.999999999993;
  wavGen.isInitialized = 0;
  wavGen.matlabCodegenIsDeleted = false;
  //  相位编码定义
  //  每次迭代产生一次脉冲数据，算出仿真时间内的脉冲数
  //      numPulses = fix(simTime*PRF);
  for (int ii{0}; ii < 5; ii++) {
    double kd;
    int k;
    //  迭代波形
    wavGen.step(xt);
    //  载波调制
    dv[0] = 0.0;
    dv[79999] = 1.999975E-5;
    for (k = 0; k < 39998; k++) {
      kd = (static_cast<double>(k) + 1.0) * 2.5E-10;
      dv[k + 1] = kd;
      dv[79998 - k] = 1.999975E-5 - kd;
    }
    dv[39999] = 9.99975E-6;
    dv[40000] = 1.0E-5;
    for (k = 0; k < 80000; k++) {
      double b_re_tmp;
      double im;
      double re;
      double re_tmp;
      im = dv[k] * 6.2831853071795864E+9;
      if (im == 0.0) {
        kd = 1.0;
        im = 0.0;
      } else {
        kd = std::cos(im);
        im = std::sin(im);
      }
      re_tmp = xt[k].re;
      b_re_tmp = xt[k].im;
      re = re_tmp * kd - b_re_tmp * im;
      xt[k].re = re;
      xt[k].im = re_tmp * im + b_re_tmp * kd;
      sig[k + 80000 * ii] = re;
    }
  }
}

//
// File trailer for RadarSignalGenerator.cpp
//
// [EOF]
//