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ConvolutionalCode.java
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ConvolutionalCode.java
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import java.util.Random;
public class ConvolutionalCode
{
public static void main (String[] args)
{
Matrix input, output, Y0, Y1, A, B;
//Encode specific input sequence
double[] vector = {1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0};
input = new Matrix(vector);
System.out.print(input);
System.out.println("Encoding...");
//Encodes the Y0 output stream for the input
A = new Matrix(input.length, input.length);
A = A.fillMatrixZero();
Y0 = A.matrixMultiply(input);
System.out.print(Y0);
//Encode the Y1 output stream for the input
B = new Matrix(input.length, input.length);
B = B.fillMatrixOne();
Y1 = B.matrixMultiply(input);
System.out.print(Y1);
//Generates a random input stream and encodes both output streams
input = Matrix.generateInput();
A = new Matrix(input.length, input.length);
A = A.fillMatrixZero();
B = new Matrix(input.length, input.length);
B = B.fillMatrixOne();
Y0 = A.matrixMultiply(input);
Y1 = B.matrixMultiply(input);
System.out.println("Generating input...");
System.out.print(input);
System.out.print("Encoding...");
System.out.print(Y0);
System.out.print(Y1);
//Generates two random output stream and decodes their input streams using
//Jacobi and Gauss-Seidel iterations. The first random stream is decoded as
//a Y0 stream and the second as a Y1 stream. Both iterative methods are fun 8 times.
int maxit = 8;
System.out.println("Generating random output...");
output = Matrix.generateOutput();
A = new Matrix(output.length, output.length);
A = A.fillMatrixZero();
B = new Matrix(output.length, output.length);
B = B.fillMatrixOne();
System.out.print(output);
System.out.println("Decoding...");
input = output.jacobiIteration(A, maxit);
System.out.print(input);
input = output.gaussseidelIteration(A, maxit);
System.out.print(input);
System.out.println("Generating random output...");
output = Matrix.generateOutput();
A = new Matrix(output.length, output.length);
A = A.fillMatrixZero();
B = new Matrix(output.length, output.length);
B = B.fillMatrixOne();
System.out.print(output);
System.out.println("Decoding...");
input = output.jacobiIteration(B, maxit);
System.out.print(input);
input = output.gaussseidelIteration(B, maxit);
System.out.print(input);
System.out.print("Done");
}
}