Equation code?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi,
I wrote the following code for this equation :
M=(1/K)*sum(zkd*zkd')
,and it's running with out errors ,but all the elements in matrix M (1000*1000) are of the same value (1.1180e+001),and Mz is just one single value (1.7619e+001)despite it should be (1000*1000).Can anybody help,please?
clear all;
clc
load lab2_data;
x = radar_noise; % input signal
K = 1000; % K CAPITAL is Block Size
L = length(x) - mod(length(x),K); % only full blocks
zkd = reshape(x(1:L), K, []);
M=zeros(K,K); % M ZEROS covariance matrix L*L
for i=1:size(zkd,1); % LOOP covariance matrix calculation
Mz=zkd(i,:)*zkd(i,:)'; %
M=M+Mz;
end
M=M/K;
0 commentaires
Réponse acceptée
Walter Roberson
le 12 Déc 2011
zkd(i,:) is going to be 1 by L.
zkd(i,:)' is going to be L by 1.
Doing a matrix multiplication of a (1 by L) and (L by 1) is going to result in a 1 by 1.
Perhaps you want
zkd(i,:)' * zkd(i,:)
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!