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Code Listing by Ashwini Patankar

Code 1-5 of 5   






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 script, you will have to pass only the value of 'a' (length of code is 2 ^ a)
2. this function can return you both the walsh matrix and randomly selected row (you may need just one sequence for your script)

for usage details refer to file.



OVSF code is used in wireless transmission to combine two messages having different data rates in an orthogonal manner.



The Additive Noise Channel and the Additive Guassian Noise Channel are the simplest of all signal channels.

The script mimics any experiments on these channels.



To use this function just define a variable say var,
var = pnseq(a, b, c);
for a, b and c refer to the zip file



Additive Noise Channel / Additive Guassian Noise Channel is the simplest of all channels. File usage details:

op_channel = additivenoise(input_signal)

mathematical Model:
s(t) input signal to channel (=sig_ip)