//
// File: false_speed.cpp
//
// MATLAB Coder version            : 5.2
// C/C++ source code generated on  : 02-Mar-2023 09:38:59
//

// Include Files
#include "fun2.h"
#include "colon.h"
#include "rt_nonfinite.h"
#include "coder_array.h"
#include <cmath>
#include <iostream>

using namespace std;

// Function Definitions
//
// Arguments    : double fd
//                double fo
//                double ts
//                double tau
//                double Tr
//                double k
//                double t_r
//                double V
//                double N
//                coder::array<double, 2U> &S
// Return Type  : void
//
void false_speed(double, double fo, double ts, double tau, double Tr, double k,
                 double t_r, double V, double N, coder::array<double, 2U> &S)
{
  coder::array<double, 2U> b_b;
  coder::array<signed char, 2U> Signal_Radar;
  coder::array<signed char, 2U> rect;
  double a;
  double b;
  double b_a;
  int ncols;
  int ntilecols;
  
//  fo = 1e6;
//  ts = 1 / 2e7;
//  tau = 3e-6;
//  Tr = 5e-4;
//  k = 5e6 / 30e-6;
//  t_r = 60e3 / 3e8;
//  V = 600;
//  N = 1;
  b = Tr - ts;
  if (std::isnan(ts) || std::isnan(b)) {
    S.set_size(1, 1);
    S[0] = rtNaN;
  } else if ((ts == 0.0) || ((0.0 < b) && (ts < 0.0)) ||
             ((b < 0.0) && (ts > 0.0))) {
    S.set_size(1, 0);
  } else if (std::isinf(b) && (std::isinf(ts) || (0.0 == b))) {
    S.set_size(1, 1);
    S[0] = rtNaN;
  } else if (std::isinf(ts)) {
    S.set_size(1, 1);
    S[0] = 0.0;
  } else if (std::floor(ts) == ts) {
    ncols = static_cast<int>(std::floor(b / ts));
    S.set_size(1, ncols + 1);
    for (ntilecols = 0; ntilecols <= ncols; ntilecols++) {
      S[ntilecols] = ts * static_cast<double>(ntilecols);
    }
  } else {
    coder::eml_float_colon(ts, b, S);
  }
  // 以ts为间隔产生Tr/ts个抽样
  rect.set_size(1, S.size(1));
  ncols = S.size(1);
  for (ntilecols = 0; ntilecols < ncols; ntilecols++) {
    rect[ntilecols] = 0;
  }
  ntilecols = S.size(1);
  for (ncols = 0; ncols < ntilecols; ncols++) {
    b = S[ncols];
    if ((b >= t_r) && (b <= tau + t_r)) {
      rect[ncols] = 1;
    }
  }
  b = N * Tr - ts;
  if (std::isnan(ts) || std::isnan(b)) {
    S.set_size(1, 1);
    S[0] = rtNaN;
  } else if ((ts == 0.0) || ((0.0 < b) && (ts < 0.0)) ||
             ((b < 0.0) && (ts > 0.0))) {
    S.set_size(S.size(0), 0);
  } else if (std::isinf(b) && (std::isinf(ts) || (0.0 == b))) {
    S.set_size(1, 1);
    S[0] = rtNaN;
  } else if (std::isinf(ts)) {
    S.set_size(1, 1);
    S[0] = 0.0;
  } else if (std::floor(ts) == ts) {
    ncols = static_cast<int>(std::floor(b / ts));
    S.set_size(1, ncols + 1);
    for (ntilecols = 0; ntilecols <= ncols; ntilecols++) {
      S[ntilecols] = ts * static_cast<double>(ntilecols);
    }
  } else {
    coder::eml_float_colon(ts, b, S);
  }
  // 以ts为间隔产生N个脉冲信号的抽样间隔
  Signal_Radar.set_size(1, rect.size(1) * static_cast<int>(N));
  ncols = rect.size(1);
  ntilecols = static_cast<int>(N);
  for (int jtilecol{0}; jtilecol < ntilecols; jtilecol++) {
    int ibtile;
    ibtile = jtilecol * ncols;
    for (int jcol{0}; jcol < ncols; jcol++) {
      Signal_Radar[ibtile + jcol] = rect[jcol];
    }
  }
  //  目标回波信号，重复N个脉冲串
  a = 6.2831853071795862 * (fo + 2.0 * V * fo / 3.0E+8);
  S.set_size(1, S.size(1));
  ncols = S.size(1) - 1;
  for (ntilecols = 0; ntilecols <= ncols; ntilecols++) {
    S[ntilecols] = S[ntilecols] - t_r;
  }
  b_a = 3.1415926535897931 * k;
  b_b.set_size(1, S.size(1));
  ncols = S.size(1);
  for (ntilecols = 0; ntilecols < ncols; ntilecols++) {
    b = S[ntilecols];
    b_b[ntilecols] = b * b;
  }
  S.set_size(1, S.size(1));
  ncols = S.size(1) - 1;
  for (ntilecols = 0; ntilecols <= ncols; ntilecols++) {
    S[ntilecols] = a * S[ntilecols] + b_a * b_b[ntilecols];
  }
  ncols = S.size(1);
  for (ntilecols = 0; ntilecols < ncols; ntilecols++) {
    S[ntilecols] = std::cos(S[ntilecols]);
  }
  S.set_size(1, Signal_Radar.size(1));
  ncols = Signal_Radar.size(1) - 1;
  for (ntilecols = 0; ntilecols <= ncols; ntilecols++) {
    S[ntilecols] = static_cast<double>(Signal_Radar[ntilecols]) * S[ntilecols];
//	printf("%f  ", S[ntilecols]);
  }
}

//int main()
//{
//
//    double fd = 4;
//    double fo = 1e6;
//    double ts = 1e-7;
//    double tau = 30e-6;
//    double Tr = 5e-4;
//    double k = 5e6/30e-6;
//    double t_r = 20e-5;
//    double V = 600;
//    double N = 1;
//    coder::array<double, 2U> S;
////    coder::array<double, 2U> S_output;
//
//    false_speed(fd, fo, ts, tau, Tr, k, t_r, V, N, S);
//
//    // 输出结果
//    for (int i = 0; i < S.size(1); i++) {
//        std::cout << S[i] << " ";
//    }
//    std::cout << std::endl;
//    return 0;
//}
//