Number of sinusoids Estimator 1.0

Date Added: May 10, 2013 | Visits: 516

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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 hiddenN = 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);ends = y + randn(1 , N);[L , R] = nbsinu(s , n , prob);

Requirements: No special requirements

Platforms: Matlab

Keyword: 2000f, Autocorrelation, Clear, Close, Fefor, Gaussian, Hiddenn, Matrixexample, Nbsinus, Noise, Pirandends, Prob, Randn, Sinusoids, Snr, Sqrt Snrl Sin Piflt, Vrai, White, Zeros

Users rating: 0/10

License: Freeware

Size: 10 KB

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