/* Function Definitions */
void generateOFDMSignal(const emlrtStack *sp, OFDMDemodulator_1 *iobj_0,
OFDMDemodulator_1 *iobj_1, OFDMDemodulator_1 **hPreambleDemod,
OFDMDemodulator_1 **hDataDemod, creal_T r[25600], d_struct_T *tx)
{
OFDMModulator_1 hDataMod;
OFDMModulator hPreambleMod;
creal_T shortPreambleOFDM[64];
int32_T i;
creal_T completeShortPreambleOFDM[160];
creal_T longPreambleOFDM[64];
creal_T completeLongPreambleOFDM[160];
real_T originalData[560];
real_T x[560];
int32_T ib;
real_T b_originalData[560];
commcodegen_CRCGenerator_6 hGen;
real_T dataWithCRC[563];
commcodegen_BPSKModulator_1 hMod;
creal_T modData[563];
real_T varargin_1[13];
int32_T k;
commcodegen_BPSKModulator_1 *obj;
const mxArray *y;
static const int32_T iv54[2] = { 1, 45 };
const mxArray *m10;
char_T cv58[45];
static const char_T cv59[45] = { 'M', 'A', 'T', 'L', 'A', 'B', ':', 's', 'y',
's', 't', 'e', 'm', ':', 'm', 'e', 't', 'h', 'o', 'd', 'C', 'a', 'l', 'l',
'e', 'd', 'W', 'h', 'e', 'n', 'R', 'e', 'l', 'e', 'a', 's', 'e', 'd', 'C',
'o', 'd', 'e', 'g', 'e', 'n' };
const mxArray *b_y;
static const int32_T iv55[2] = { 1, 4 };
char_T cv60[4];
static const char_T cv61[4] = { 's', 't', 'e', 'p' };
const mxArray *c_y;
static const int32_T iv56[2] = { 1, 51 };
char_T cv62[51];
static const char_T cv63[51] = { 'M', 'A', 'T', 'L', 'A', 'B', ':', 's', 'y',
's', 't', 'e', 'm', ':', 'm', 'e', 't', 'h', 'o', 'd', 'C', 'a', 'l', 'l',
'e', 'd', 'W', 'h', 'e', 'n', 'L', 'o', 'c', 'k', 'e', 'd', 'R', 'e', 'l',
'e', 'a', 's', 'e', 'd', 'C', 'o', 'd', 'e', 'g', 'e', 'n' };
const mxArray *d_y;
static const int32_T iv57[2] = { 1, 5 };
char_T cv64[5];
static const char_T cv65[5] = { 's', 'e', 't', 'u', 'p' };
static const int8_T value[8] = { 13, 1, 1, 1, 1, 1, 1, 1 };
boolean_T anyInputSizeChanged;
boolean_T exitg2;
static const int8_T iv58[8] = { 13, 1, 1, 1, 1, 1, 1, 1 };
creal_T varargout_1[13];
creal_T b_modData[576];
creal_T ofdmData[576];
comm_PNSequence_5 hPN;
comm_PNSequence_5 *b_obj;
static const int8_T iv59[8] = { 1, 0, 0, 0, 1, 0, 0, 1 };
static const int8_T iv60[7] = { 0, 0, 0, 0, 0, 0, 1 };
int8_T pilot[12];
uint8_T tmp;
uint8_T tmp2;
int8_T pilots[48];
int32_T ia;
real_T b_pilots[48];
creal_T b_r[960];
creal_T preambles[320];
creal_T c_r[1280];
OFDMDemodulator_1 *object;
int8_T b_data[4];
int32_T exitg1;
int32_T exponent;
boolean_T b2;
int32_T i12;
const mxArray *e_y;
static const int32_T iv61[2] = { 1, 13 };
char_T cv66[13];
static const char_T cv67[13] = { 'c', 'o', 'm', 'm', ':', 'O', 'F', 'D', 'M',
':', 'x', 'x', 'x' };
static const creal_T dcv3[53] = { { 0.0, 0.0 }, { 0.0, 0.0 }, { 1.0, 1.0 }, {
0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { -1.0, -1.0 }, { 0.0, 0.0 }, {
0.0, 0.0 }, { 0.0, 0.0 }, { 1.0, 1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0,
0.0 }, { -1.0, -1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { -1.0,
-1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 1.0, 1.0 }, { 0.0, 0.0
}, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, {
0.0, 0.0 }, { -1.0, -1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { -
1.0, -1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 1.0, 1.0 }, { 0.0,
0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 1.0, 1.0 }, { 0.0, 0.0 }, { 0.0, 0.0
}, { 0.0, 0.0 }, { 1.0, 1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, { 0.0, 0.0 }, {
1.0, 1.0 }, { 0.0, 0.0 }, { 0.0, 0.0 } };
static const int8_T iv62[53] = { 1, 1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1,
1, -1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 0, 1, -1, -1, 1, 1, -1, 1, -1, 1, -1,
-1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, 1 };
static const int8_T iv63[48] = { 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 35, 36,
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53 };
emlrtStack st;
emlrtStack b_st;
emlrtStack c_st;
emlrtStack d_st;
emlrtStack e_st;
emlrtStack f_st;
emlrtStack g_st;
st.prev = sp;
st.tls = sp->tls;
b_st.prev = &st;
b_st.tls = st.tls;
c_st.prev = &b_st;
c_st.tls = b_st.tls;
d_st.prev = &c_st;
d_st.tls = c_st.tls;
e_st.prev = &d_st;
e_st.tls = d_st.tls;
f_st.prev = &e_st;
f_st.tls = e_st.tls;
g_st.prev = &f_st;
g_st.tls = f_st.tls;
emlrtHeapReferenceStackEnterFcnR2012b(sp);
emxInitStruct_OFDMModulator_1(sp, &hDataMod, &s_emlrtRTEI, TRUE);
emxInitStruct_OFDMModulator(sp, &hPreambleMod, &t_emlrtRTEI, TRUE);
/* generateOFDMSignal: Generate OFDM signal based on the 802.11a standard. */
/* This function returns the time domain signal and a structure containing */
/* details about the signal itself. This information is required by the */
/* receiver to operate correctly. */
/* % System Parameters */
/* OFDM modulator FFT size */
/* Enable moving averages for estimates */
/* 1e3 */
/* Message to transmit */
/* String holder */
/* coder.varsize('payloadMessage', [1, 80], [0 1]); */
/* payloadMessage = ''; */
/* % Create Short Preamble */
/* % [-27:-17] */
/* % [-16:-1] */
/* % [0:15] */
/* [16:27] */
/* % Create modulator */
/* hPreambleMod = OFDMModulator(... */
/* 'NumGuardBandCarriers', [6; 5],... */
/* 'CyclicPrefixLength', 0,... */
/* 'FFTLength' , FFTLength,... */
/* 'NumSymbols', 1); */
/* Create modulator */
st.site = &lk_emlrtRSI;
OFDMModulator_OFDMModulator(&hPreambleMod);
/* Modulate and scale */
st.site = &mk_emlrtRSI;
SystemCore_step(&st, &hPreambleMod, shortPreambleOFDM);
st.site = &mk_emlrtRSI;
for (i = 0; i < 64; i++) {
shortPreambleOFDM[i].re *= 1.4719601443879744;
shortPreambleOFDM[i].im *= 1.4719601443879744;
}
/* Form 10 Short Preambles */
memcpy(&completeShortPreambleOFDM[0], &shortPreambleOFDM[0], sizeof(creal_T) <<
6);
memcpy(&completeShortPreambleOFDM[64], &shortPreambleOFDM[0], sizeof(creal_T) <<
6);
memcpy(&completeShortPreambleOFDM[128], &shortPreambleOFDM[0], sizeof(creal_T)
<< 5);
/* % Create Long Preamble */
/* Modulate */
st.site = &nk_emlrtRSI;
b_SystemCore_step(&st, &hPreambleMod, longPreambleOFDM);
/* Form 2 Long Preambles */
memcpy(&completeLongPreambleOFDM[0], &longPreambleOFDM[32], sizeof(creal_T) <<
5);
memcpy(&completeLongPreambleOFDM[32], &longPreambleOFDM[0], sizeof(creal_T) <<
6);
memcpy(&completeLongPreambleOFDM[96], &longPreambleOFDM[0], sizeof(creal_T) <<
6);
/* % Generate Data */
/* Use string as message */
st.site = &ok_emlrtRSI;
b_OFDMletters2bits(&st, originalData);
st.site = &pk_emlrtRSI;
for (i = 0; i < 80; i++) {
for (ib = 0; ib < 7; ib++) {
x[ib + 7 * i] = originalData[i + 80 * ib];
}
}
memcpy(&b_originalData[0], &x[0], 560U * sizeof(real_T));
/* Generate CRC */
st.site = &qk_emlrtRSI;
b_CRCGenerator_CRCGenerator(&hGen);
st.site = &rk_emlrtRSI;
e_SystemCore_step(&st, &hGen, b_originalData, dataWithCRC);
/* Add CRC */
/* Construct modulator for each subcarrier */
st.site = &sk_emlrtRSI;
BPSKModulator_BPSKModulator(&hMod);
/* BPSK */
/* Apply modulator for each subcarrier */
st.site = &tk_emlrtRSI;
f_SystemCore_step(&st, &hMod, dataWithCRC, modData);
/* Pad IFFT */
st.site = &uk_emlrtRSI;
b_st.site = &u_emlrtRSI;
emlrtRandu(varargin_1, 13);
for (k = 0; k < 13; k++) {
b_st.site = &v_emlrtRSI;
b_st.site = &v_emlrtRSI;
c_st.site = &p_emlrtRSI;
varargin_1[k] = muDoubleScalarFloor(varargin_1[k] * 2.0);
}
st.site = &uk_emlrtRSI;
obj = &hMod;
if (!obj->isReleased) {
} else {
y = NULL;
m10 = mxCreateCharArray(2, iv54);
for (i = 0; i < 45; i++) {
cv58[i] = cv59[i];
}
emlrtInitCharArrayR2013a(&st, 45, m10, cv58);
emlrtAssign(&y, m10);
b_y = NULL;
m10 = mxCreateCharArray(2, iv55);
for (i = 0; i < 4; i++) {
cv60[i] = cv61[i];
}
emlrtInitCharArrayR2013a(&st, 4, m10, cv60);
emlrtAssign(&b_y, m10);
b_st.site = &cb_emlrtRSI;
c_error(&b_st, message(&b_st, y, b_y, &emlrtMCI), &emlrtMCI);
}
if (!obj->isInitialized) {
b_st.site = &cb_emlrtRSI;
if (!obj->isInitialized) {
} else {
c_y = NULL;
m10 = mxCreateCharArray(2, iv56);
for (i = 0; i < 51; i++) {
cv62[i] = cv63[i];
}
emlrtInitCharArrayR2013a(&b_st, 51, m10, cv62);
emlrtAssign(&c_y, m10);
d_y = NULL;
m10 = mxCreateCharArray(2, iv57);
for (i = 0; i < 5; i++) {
cv64[i] = cv65[i];
}
emlrtInitCharArrayR2013a(&b_st, 5, m10, cv64);
emlrtAssign(&d_y, m10);
c_st.site = &cb_emlrtRSI;
c_error(&c_st, message(&c_st, c_y, d_y, &emlrtMCI), &emlrtMCI);
}
c_st.site = &cb_emlrtRSI;
obj->isInitialized = TRUE;
d_st.site = &db_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
e_st.site = &db_emlrtRSI;
d_st.site = &cb_emlrtRSI;
e_st.site = &db_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
e_st.site = &db_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
for (i = 0; i < 8; i++) {
obj->inputVarSize1[i] = (uint32_T)value[i];
}
e_st.site = &db_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
e_st.site = &cb_emlrtRSI;
e_st.site = &cb_emlrtRSI;
f_st.site = &gg_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
d_st.site = &cb_emlrtRSI;
e_st.site = &gg_emlrtRSI;
c_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &gg_emlrtRSI;
d_st.site = &gg_emlrtRSI;
e_st.site = &db_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &gg_emlrtRSI;
e_st.site = NULL;
}
b_st.site = &cb_emlrtRSI;
b_st.site = &cb_emlrtRSI;
b_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &gg_emlrtRSI;
b_st.site = &cb_emlrtRSI;
b_st.site = &cb_emlrtRSI;
anyInputSizeChanged = FALSE;
k = 0;
exitg2 = FALSE;
while ((exitg2 == FALSE) && (k < 8)) {
if (obj->inputVarSize1[k] != (uint32_T)iv58[k]) {
anyInputSizeChanged = TRUE;
c_st.site = &cb_emlrtRSI;
for (i = 0; i < 8; i++) {
obj->inputVarSize1[i] = (uint32_T)value[i];
}
d_st.site = &db_emlrtRSI;
exitg2 = TRUE;
} else {
k++;
}
}
if (anyInputSizeChanged) {
b_st.site = &cb_emlrtRSI;
b_st.site = &cb_emlrtRSI;
}
b_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
c_st.site = &cb_emlrtRSI;
d_st.site = &gg_emlrtRSI;
b_st.site = &cb_emlrtRSI;
b_st.site = &cb_emlrtRSI;
b_st.site = &cb_emlrtRSI;
d_Nondirect_stepImpl(obj, varargin_1, varargout_1);
memcpy(&b_modData[0], &modData[0], 563U * sizeof(creal_T));
memcpy(&b_modData[563], &varargout_1[0], 13U * sizeof(creal_T));
/* Calculate required data sizes for correct receiver operation */
/* Save desired message size */
/* Save number of transmitted frames */
/* Convert data into subcarrier streams */
st.site = &vk_emlrtRSI;
memcpy(&ofdmData[0], &b_modData[0], 576U * sizeof(creal_T));
/* Create Pilots */
st.site = &wk_emlrtRSI;
b_obj = &hPN;
/* System object Constructor function: comm.PNSequence */
b_obj->S0_isInitialized = FALSE;
b_obj->S1_isReleased = FALSE;
for (i = 0; i < 8; i++) {
b_obj->P0_Polynomial[i] = (uint8_T)iv59[i];
}
for (i = 0; i < 7; i++) {
b_obj->P1_IniState[i] = 1;
b_obj->P2_Mask[i] = (uint8_T)iv60[i];
}
st.site = &xk_emlrtRSI;
b_obj = &hPN;
if (!b_obj->S0_isInitialized) {
b_obj->S0_isInitialized = TRUE;
if (b_obj->S1_isReleased) {
emlrtErrorWithMessageIdR2012b(&st, &bc_emlrtRTEI,
"MATLAB:system:runtimeMethodCalledWhenReleasedCodegen", 0);
}
b_st.site = NULL;
b_st.site = NULL;
/* System object Initialization function: comm.PNSequence */
for (ib = 0; ib < 7; ib++) {
b_obj->W0_shiftReg[ib] = b_obj->P1_IniState[ib];
emlrtBreakCheckFastR2012b(emlrtBreakCheckR2012bFlagVar, &b_st);
}
}
b_st.site = NULL;
/* System object Outputs function: comm.PNSequence */
for (ib = 0; ib < 12; ib++) {
tmp = 0;
for (i = 0; i < 7; i++) {
tmp = (uint8_T)((uint32_T)tmp + (uint8_T)((uint32_T)b_obj->P0_Polynomial[i
+ 1] * b_obj->W0_shiftReg[i]));
}
tmp &= 1;
tmp2 = 0;
for (i = 0; i < 7; i++) {
tmp2 = (uint8_T)((uint32_T)tmp2 + (uint8_T)((uint32_T)b_obj->W0_shiftReg[i]
* b_obj->P2_Mask[i]));
}
pilot[ib] = (int8_T)(tmp2 & 1);
for (i = 5; i > -1; i += -1) {
b_obj->W0_shiftReg[i + 1] = b_obj->W0_shiftReg[i];
}
b_obj->W0_shiftReg[0U] = tmp;
}
/* Create pilot */
st.site = &yk_emlrtRSI;
ib = 0;
for (i = 0; i < 4; i++) {
ia = 0;
for (k = 0; k < 12; k++) {
pilots[ib] = pilot[ia];
b_st.site = &ng_emlrtRSI;
ia++;
b_st.site = &og_emlrtRSI;
ib++;
}
}
/* Expand to all pilot tones */
st.site = &al_emlrtRSI;
for (i = 0; i < 12; i++) {
for (ib = 0; ib < 4; ib++) {
b_pilots[ib + (i << 2)] = 2.0 * (real_T)(pilots[i + 12 * ib] < 1) - 1.0;
}
}
/* Bipolar to unipolar */
st.site = &bl_emlrtRSI;
for (i = 0; i < 12; i++) {
b_pilots[3 + (i << 2)] = -b_pilots[3 + (i << 2)];
}
/* Invert last pilot */
/* Construct Modulator */
st.site = &cl_emlrtRSI;
b_OFDMModulator_OFDMModulator(&st, &hDataMod);
/* Modulate */
st.site = &dl_emlrtRSI;
d_SystemCore_step(&st, &hDataMod, ofdmData, b_pilots, b_r);
/* Add preambles to data */
memcpy(&preambles[0], &completeShortPreambleOFDM[0], 160U * sizeof(creal_T));
memcpy(&preambles[160], &completeLongPreambleOFDM[0], 160U * sizeof(creal_T));
memcpy(&c_r[0], &preambles[0], 320U * sizeof(creal_T));
memcpy(&c_r[320], &b_r[0], 960U * sizeof(creal_T));
/* Repeat frame */
st.site = &el_emlrtRSI;
ib = 0;
for (i = 0; i < 20; i++) {
ia = 0;
for (k = 0; k < 1280; k++) {
r[ib] = c_r[ia];
b_st.site = &ng_emlrtRSI;
ia++;
b_st.site = &og_emlrtRSI;
ib++;
}
}
/* Save Demodulator object data for receiver */
/* hDataDemod = get(OFDMDemodulator(hDataMod)); */
/* hPreambleDemod = get(OFDMDemodulator(hPreambleMod)); */
st.site = &fl_emlrtRSI;
object = iobj_0;
*hDataDemod = object;
b_st.site = &jj_emlrtRSI;
object = *hDataDemod;
c_st.site = &y_emlrtRSI;
d_st.site = &bb_emlrtRSI;
d_st.site = &bb_emlrtRSI;
object->isInitialized = FALSE;
object->isReleased = FALSE;
e_st.site = &cb_emlrtRSI;
f_st.site = &db_emlrtRSI;
e_st.site = &cb_emlrtRSI;
f_st.site = &db_emlrtRSI;
c_st.site = &y_emlrtRSI;
c_st.site = &ab_emlrtRSI;
b_st.site = &kj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &lj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &mj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &nj_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &oj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &pj_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &qj_emlrtRSI;
c_st.site = &db_emlrtRSI;
/* OFDMBase Base object for OFDMModulator and OFDMDemodulator System objects */
/* Copyright 2013 The MathWorks, Inc. */
/* FFTLength FFT length */
/* Specify the IFFT length. This property can be set to an integer */
/* scalar. The value must be a power of two. The default value of */
/* this property is 64. */
/* CyclicPrefixLength Cyclic prefix length */
/* Specify the cyclic prefix length. This property can be set to a */
/* non-negative interher scalar. The default value of this property is 16. */
/* NumGuardBandCarriers Number of guard bands */
/* Specify the lower and upper guard bands in frequency domain.This */
/* property can be set to a non-nagative two-element vector. */
/* The default setting of this property is [6 5]. */
/* NumSymbols Number of OFDM symbols */
/* Specify the number of OFDM symbols at the output. The default value */
/* of this property is 1. */
/* PilotCarrierIndices Pilot subcarrier indices */
/* Specify the locations where pilots are to be inserted. You can */
/* set this property to a numeric scalar, column vector, matrix, or */
/* 3-D array. The defalut value of the property is [-21; -7; 7; 21]. */
/* Nontunable ideally */
/* Constructor */
/* validateattributes(fftLen, {'numeric'}, ... */
/* {'real','scalar','integer','finite','>=',8}, ... */
/* [class(obj) '.' propName], propName); */
/* validateattributes(CPLen, {'numeric'}, ... */
/* {'real','row','integer','nonnegative','finite'}, ... */
/* [class(obj) '.' propName], propName); */
/* validateattributes(guardBands, {'numeric'}, ... */
/* {'real','integer','nonnegative','finite','size', [2, 1]}, ... */
/* [class(obj) '.' propName], propName); */
/* validateattributes(numSym, {'numeric'}, ... */
/* {'real','scalar','integer','positive','finite'}, ... */
/* [class(obj) '.' propName], propName); */
/* validateattributes(pilotIdx, {'numeric'}, ... */
/* {'real','integer','positive','finite','3d'}, ... */
/* [class(obj) '.' propName], propName); */
/* Check the 3rd dimension for numTx */
d_st.site = &uh_emlrtRSI;
e_st.site = &vh_emlrtRSI;
for (k = 0; k < 4; k++) {
b_data[k] = (int8_T)(12 + 14 * k);
}
f_st.site = &mi_emlrtRSI;
i = 0;
f_st.site = &ki_emlrtRSI;
f_st.site = &ji_emlrtRSI;
k = 1;
while (k <= 4) {
ib = b_data[k - 1];
do {
exitg1 = 0;
f_st.site = &ii_emlrtRSI;
k++;
if (k > 4) {
exitg1 = 1;
} else {
f_st.site = &hi_emlrtRSI;
frexp((real_T)ib / 2.0, &exponent);
if (muDoubleScalarAbs(ib - b_data[k - 1]) < ldexp(1.0, exponent - 53)) {
anyInputSizeChanged = TRUE;
} else {
anyInputSizeChanged = FALSE;
}
if (!anyInputSizeChanged) {
exitg1 = 1;
}
}
} while (exitg1 == 0);
f_st.site = &gi_emlrtRSI;
i++;
b_data[i - 1] = (int8_T)ib;
f_st.site = &fi_emlrtRSI;
f_st.site = &fi_emlrtRSI;
}
f_st.site = &bi_emlrtRSI;
f_st.site = &ai_emlrtRSI;
f_st.site = &wh_emlrtRSI;
if (1 > i) {
b2 = FALSE;
} else {
b2 = (i > 2147483646);
}
if (b2) {
g_st.site = &bg_emlrtRSI;
check_forloop_overflow_error(&g_st);
}
d_st.site = &uh_emlrtRSI;
d_st.site = &uh_emlrtRSI;
if (1 > i) {
i12 = 0;
} else {
i12 = i;
}
if (!(4 != i12)) {
} else {
e_y = NULL;
m10 = mxCreateCharArray(2, iv61);
for (i = 0; i < 13; i++) {
cv66[i] = cv67[i];
}
emlrtInitCharArrayR2013a(&d_st, 13, m10, cv66);
emlrtAssign(&e_y, m10);
e_st.site = &mv_emlrtRSI;
c_error(&e_st, b_message(&e_st, e_y, &g_emlrtMCI), &g_emlrtMCI);
}
/* Error message: */
/* If pilot index is 2-D, the indices per symbol must be unique; */
/* If pilot index is 3-D, the indices across transmit antennas per symbol must be unique. */
c_st.site = &db_emlrtRSI;
st.site = &gl_emlrtRSI;
object = iobj_1;
*hPreambleDemod = object;
b_st.site = &jj_emlrtRSI;
object = *hPreambleDemod;
c_st.site = &y_emlrtRSI;
d_st.site = &bb_emlrtRSI;
d_st.site = &bb_emlrtRSI;
object->isInitialized = FALSE;
object->isReleased = FALSE;
e_st.site = &cb_emlrtRSI;
f_st.site = &db_emlrtRSI;
e_st.site = &cb_emlrtRSI;
f_st.site = &db_emlrtRSI;
c_st.site = &y_emlrtRSI;
c_st.site = &ab_emlrtRSI;
b_st.site = &kj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &lj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &mj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &nj_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &oj_emlrtRSI;
c_st.site = &db_emlrtRSI;
c_st.site = &db_emlrtRSI;
b_st.site = &pj_emlrtRSI;
c_st.site = &db_emlrtRSI;
/* Calcuate OFDM frequency bin size */
/* Calculate locations of pilots without guardbands */
/* Calculate locations of subcarrier datastreams without guardbands */
/* Remove guardband offsets */
/* Remove index offsets for pilots and guardbands */
/* dataSubcarrierIndexies([pilotLocationsWithoutGuardbands;DCNullLocation]) = [];%Remove pilot and DCNull locations */
/* Create return structure */
for (i = 0; i < 560; i++) {
tx->originalData[i] = b_originalData[i];
}
for (i = 0; i < 64; i++) {
tx->shortPreambleOFDM[i] = shortPreambleOFDM[i];
}
for (i = 0; i < 160; i++) {
tx->completeShortPreambleOFDM[i] = completeShortPreambleOFDM[i];
}
for (i = 0; i < 53; i++) {
tx->shortPreamble[i] = dcv3[i];
}
for (i = 0; i < 53; i++) {
tx->longPreamble[i] = iv62[i];
}
for (i = 0; i < 64; i++) {
tx->longPreambleOFDM[i] = longPreambleOFDM[i];
}
for (i = 0; i < 160; i++) {
tx->completeLongPreambleOFDM[i] = completeLongPreambleOFDM[i];
}
for (i = 0; i < 48; i++) {
tx->pilots[i] = b_pilots[i];
}
for (i = 0; i < 320; i++) {
tx->preambles[i] = preambles[i];
}
for (i = 0; i < 4; i++) {
tx->pilotLocationsWithoutGuardbands[i] = 6.0 + 14.0 * (real_T)i;
}
tx->dataSubcarrierIndexies.size[0] = 1;
tx->dataSubcarrierIndexies.size[1] = 48;
for (i = 0; i < 48; i++) {
tx->dataSubcarrierIndexies.data[i] = iv63[i];
}
tx->samplingFreq = 5.0E+6;
tx->FFTLength = 64.0;
tx->enableMA = TRUE;
tx->numCarriers = 48.0;
tx->padBits = 13.0;
tx->numSamples = 576.0;
tx->messageCharacters = 80.0;
tx->numFrames = 20.0;
tx->frameLength = 1280.0;
tx->freqBin = 78125.0;
tx->DecimationFactor = 0.0;
tx->receiveBufferLength = 0.0;
/* padBits: 13 */
/* numSamples: 576 */
/* messageCharacters: 80 */
/* numFrames: 1000 */
/* frameLength: 1280 */
/* freqBin: 312500 */
/* hDataDemod: [1x1 struct] */
/* hPreambleDemod: [1x1 struct] */
st.site = NULL;
b_Destructor(&hPN);
emxFreeStruct_OFDMModulator(&hPreambleMod);
emxFreeStruct_OFDMModulator_1(&hDataMod);
emlrtHeapReferenceStackLeaveFcnR2012b(sp);
}
void rffe_test(const emlrtStack *sp, const creal_T df[1408], boolean_T ft,
real_T cas, real_T cau, creal_T dfr[704])
{
creal_T tmp[1408];
creal_T ddf[64];
real_T ofs;
creal_T b_tmp[1408];
emlrtStack st;
(void)cau;
st.prev = sp;
st.tls = sp->tls;
/* RFFE: Radio Freq Front End: AGC's, Freq Compensates, & RCRF's Input Data */
/* Function Arguments: */
/* cas: Constant AGC Step Size (fixed at 1.0) */
/* cau: Constant AGC Update Rate (fixed at usrpFrameLength) */
/* cef: Constant Frequency Offset Estimation Freq Resolution (~4.0 Hz) */
/* df: This Data Frame: Raw data taken from USRP Rx Buffer (length usrpFrameLength) */
/* dfr: This Data Frame Recovered: Data after AGC, FOC & RCRF (length halfUsrpFrameLength) */
/* ft: Flag Terminal: If true, specifies to release all System objects */
/* setting global variables */
/* ha: Handle to Automatic Gain Control (AGC) System object */
/* hd: Handle to FIR Decimator System object */
/* he: Handle to Coarse Frequency Estimator (CFE) System object */
/* hf: Handle to Frequency Offset Compensator (FOC) System object */
/* hrr: Handle to Raised Cosine Receive Filter (RCRF) System object */
/* Initialize Persistent Data: Only on first call to RFFE() */
if (!ha_not_empty) {
/* ha = comm.AGC('DetectorMethod','Rectifier','LoopMethod','Logarithmic', ... */
/* 'MaximumGain',30,'StepSize',cas,'UpdatePeriod',cau); */
st.site = &emlrtRSI;
AGC_AGC(&st, &ha, cas);
ha_not_empty = true;
}
/* END IF ISEMPTY(HA) */
if (!hd_not_empty) {
st.site = &b_emlrtRSI;
FIRDecimator_FIRDecimator(&hd);
hd_not_empty = true;
}
/* END IF ISEMPTY(HD) */
if (!he_not_empty) {
st.site = &c_emlrtRSI;
c_PSKCoarseFrequencyEstimator_P(&he);
he_not_empty = true;
}
/* END IF ISEMPTY(HC) */
if (!hf_not_empty) {
st.site = &d_emlrtRSI;
c_PhaseFrequencyOffset_PhaseFre(&st, &hf);
hf_not_empty = true;
}
/* END IF ISEMPTY(HF) */
if (!hrr_not_empty) {
st.site = &e_emlrtRSI;
c_RaisedCosineReceiveFilter_Rai(&hrr);
hrr_not_empty = true;
}
/* IF ISEMPTY(HRR) */
/* Local data preallocation */
memset(&dfr[0], 0, 704U * sizeof(creal_T));
if (ft) {
/* Release System objects: only on final call to RFFE() */
st.site = &f_emlrtRSI;
SystemCore_release(&st, &ha);
st.site = &g_emlrtRSI;
b_SystemCore_release(&st, &hd);
st.site = &h_emlrtRSI;
c_SystemCore_release(&st, &he);
st.site = &i_emlrtRSI;
d_SystemCore_release(&st, &hf);
st.site = &j_emlrtRSI;
e_SystemCore_release(&st, &hrr);
/* clear('ha','he','hf','hrr'); %Not supported for code generation */
} else {
/* Automatic Gain Control (AGC) */
st.site = &k_emlrtRSI;
SystemCore_step(&st, &ha, df, tmp);
/* FIR Decimation */
st.site = &l_emlrtRSI;
b_SystemCore_step(&st, &hd, tmp, ddf);
/* Coarse Frequency Offset Estimation (CFE) */
st.site = &m_emlrtRSI;
ofs = c_SystemCore_step(&st, &he, ddf);
/* Frequency Offset Compensation (FOC) */
memcpy(&b_tmp[0], &tmp[0], 1408U * sizeof(creal_T));
st.site = &n_emlrtRSI;
d_SystemCore_step(&st, &hf, b_tmp, -ofs, tmp);
/* Raised Cosine Receive Filtration (RCRF) */
st.site = &o_emlrtRSI;
e_SystemCore_step(&st, &hrr, tmp, dfr);
}
/* IF FT */
/* FUNCTION RFFE */
}
