MATLAB: Weights of LMS adaptives filter: bode commant, plot magnitude and phase

lms adaptive filter transfer function weights magnitude phase

Hello, I would like to know if there is a way to plot the magnitude and the phase of the values of the weights returned by LMS adapative filter.
By the way: is there any way to convert this filter to transfer function?
w =
   -0.1229
   -0.0786
   -0.0391
   -0.0043
    0.0284
    0.0594
    0.0913
    0.1247
    0.1620
    0.2035
    0.2515

Best Answer

A very useful script for your case:
clear; clc; close all;
% LMS weights
w=[ -0.1229   -0.0786   -0.0391     -0.0043    0.0284      0.0594...
     0.0913    0.1247    0.1620      0.2035    0.2515                ];
%sampling period of our system;
Ts=1;
% LMS feedforward is a filter
sys=tf(w, 1, Ts, 'variable','z^-1');
% plot bode diagram
figure;
bode(sys);
grid on; zoom on;
If you run the script, you will receive bode diagram:
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