for entropy H = entropy(S) this command will evaluate the entropy of S, S should be row matrix H = entropy([X Y Z]) this command will find the joint entropy for the 3 variables H = entropy([X,Y],[Z,W]) this will find H(X,Y/Z,W).. yo

Construct the short length of QC LDPC codes without girth 4 and girth 6-The Program to construct the short length of QC LDPC codes without girth 4 and girth 6 Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.

This function generates Walsh Codes. The difference between this function and other functions available to generate walsh code is : 1. you can call this function directly in your scr ipt, you will have to pass only the value of a (length of code i

AVSPOS extracts the available satellite position (XYZ) XYZ=avspos(X,Y,P1,P2) extracts the visible satellites, which are described in P2, from the matrix X. The output XYZ is a N-by-3*M matrix with the coordinates of the visible satellites.

SKYPLOT for a given receiver position Y=skyplot(X,PRN,C,O) draws the skyplot for the receiver position. The required inputdata for the calculation of the skyplot X is N-by-3*M matrix, where N are the timesteps and M is the number of the Sat