changed receiver part

+#include "receiver.h"
+
+Creceiver::Creceiver() {}
+
+void Creceiver::demodulate() {
+
+	T = Nsamplespersymbol;
+	float c0[Nsamplespersymbol], c1[Nsamplespersymbol];
+	for (int i = 1; i <= Nsamplespersymbol; i++) {
+		c0[i - 1] = sqrt(2 / T) * cos(2 * PI / T * i);
+		c1[i - 1] = sqrt(2 / T) * sin(2 * PI / T * i);
+	}
+	float temp0[1], temp1[1];
+	for (int i = 0; i < Nbits / 2; i++) {
+		matrixmult(1, Nsamplespersymbol, 1, r + (Nbitspersymbol * i), c0, temp0);
+		matrixmult(1, Nsamplespersymbol, 1, r + (Nbitspersymbol * i), c1, temp1);
+		constellation[2 * i] = temp0[0];
+		constellation[2 * i + 1] = temp1[0];
+	}
+	for (int j = 0; j < Nbits; j++) {
+		if (constellation[j] >= 0) DecodedData[j] = '0';
+		else DecodedData[j] = '1';
+	}
+
+}
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 #ifndef __RECEIVER
 
 #define __RECEIVER
+#define PI 3.141592
 #include <cmath>
+#include <fstream>
 #include "variables.h"
+#include "myMatrix.h"
 class Creceiver {
 public:
-	Creceiver() {};
+	float T;
+	Creceiver();
 	float *r; // corrupted signal = received signal
 	float constellation[Nbits];
 	char DecodedData[Nbits];
 	void demodulate();
 };
-#endif
+
+#endif
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