LMS Adaptation Training Equalizer

Short program showing LMS Equalization

Description

This is a short program that demonstrates how LMS adapatation works. Other (more complex) models exist and can be downloaded from Mathworks. This particular implementation is useful for someone trying to first understand the algorithm and how it works.

• MATLAB release: MATLAB 7.1.0 (R14SP3)

[Won Lu]

Just what I needed

[anil kumar tipparti]

yet to see and analyze

[unequalized channel]

brialliant startingpoint to understand how CMA for blind equalization works

[nasir seid]

the available works are so good.

[Anil Kumar Tipparti]

good starting point

[Ari Chinna]

 

[john darsy]

very helpful.Thank you

[suresh chandra sekaran]

but when i plot the fft of equalizer transfer function "w" it almost resembles as that of the channel transfer function "h" but it must be the inverse of the other know . Why is that?
Am i wrong somewhere.

[Qaiser Mushtaq]

I am also want this same with RLS Adaptation.
Can any body help.?????????

[Athar]

when step size is 0.45
the convergence acheived only in 700 iteration
Exellent

[dinesh]

hey sorry but i didn't get this part

% select part of training input
    in = x(n : -1 : n-numTaps) ;
    y(n) = w'*in;
    % compute error
    e(n) = d(n)-y(n)

u multiplied the weights with the data bits instead of the received bits.

i think it should be

% select part of training input
    in = received_bits(n : -1 : n-numTaps) ;
    y(n) = w'*in;
    % compute error
    e(n) = x(n)-y(n)

Please clarify.

[king]

thanks your idea