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Number of sinusoids Estimator 1.0
File ID: 78195






Number of sinusoids Estimator 1.0
Download Number of sinusoids Estimator 1.0http://www.mathworks.comReport Error Link
License: Freeware
File Size: 10.0 KB
Downloads: 6
Submit Rating:
Number of sinusoids Estimator 1.0 Description
Description: Fast Algorithm estimating the number of sinusoids in a white Gaussian noise. This algorithm use a sub-space method based on chi-square statistics of eigen values of the Autocorrelation Matrix.

Example :

clear, close all hidden
N = 512;
L_vrai = 4;
fe = 2000;
F = (0:(fe/2)/(N/2-1):(fe/2));
snr = [-10 -10 -10 -10];
f = [25 230 500 780];
n = 32;
prob = 0.95;
y = zeros(1,N);
t = (0:(N-1))/fe;

for l = 1:L_vrai
y = y + sqrt(2)*10^(snr(l)/20)*sin(2.*pi.*f(l).*t + 2.*pi.*rand);
end

s = y + randn(1 , N);

[L , R] = nbsinu(s , n , prob);

License: Freeware

Related: 2000f, snr, vrai, hiddenn, clear, Close, prob, zeros, randn, nbsinus, pirandends, sqrt snrl sin piflt, fefor, matrixexample, autocorrelation, gaussian, Noise, White, sinusoids

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 10.0 KB

Downloads: 6



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