Subsample Delay Estimation: x=rand_white(N); - File Exchange

Code covered by the BSD License

Highlights from
Subsample Delay Estimation

[e f_e G P]=zzb(s,n1,n2, f_s,... calculates the modified Ziv-Zakai lower bound for time delay estimation.
[x_max y_max A]=crit_interp_p...
delay=delayest_3point(u2,u1,m... delay=delayest_3point(u2,u1,method,estimator,parameter);
delay=delayest_fft(y,u); delay=delayest_fft(y,u);
delayest_iterative(u2,u1,N_i_...
x=rand_white(N);
y=fft_circshift(u,d) y=fft_circshift(u,d)
y=fourier_series(Y,t);
compare_delay_methods_6_03.m
simple_example.m
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from Subsample Delay Estimation by Travis Wiens
Demonstrates a number of methods of estimating the delay between two signals to subsample accuracy.

x=rand_white(N);

function x=rand_white(N);
%x=rand_white(N);
%Generates white noise with a constant fft and variance 1.
%N must be even.

%    Copyright Travis Wiens 2009 travis.mlfx@nutaksas.com

X=ones(1,N);
phase=2*pi*rand(1,N/2-1);
X(2:N/2)=X(2:N/2).*exp(2i*pi*phase);
X((N/2+2):end)=conj(fliplr(X(2:N/2)));
x=sqrt(N)*real(ifft(X));

Highlights from Subsample Delay Estimation

Highlights from
Subsample Delay Estimation