<< Ctfrri Time-Frequency representations (C - Toolbox) Ctfrridbn >>

stftb >> stftb > Time-Frequency representations (C - Toolbox) > Ctfrridb

Ctfrridb

Reduced Interference Distribution with Bessel kernel

Calling Sequence

[TFR,T,F] = Ctfrridb(X)
[TFR,T,F] = Ctfrridb(X, T)
[TFR,T,F] = Ctfrridb(X, T, N)
[TFR,T,F] = Ctfrridb(X, T, N, G)
[TFR,T,F] = Ctfrridb(X, T, N, G, H)

Parameters

X :

Analyzed signal.

T :

time instant(s) (default : 1:length(X)).

N :

number of frequency bins (default : length(X)).

G :

time smoothing window, (default : Hamming(N/10)).

H :

frequency smoothing window (default : Hamming(N/4)).

TFR :

time-frequency representation.

F :

vector of normalized frequencies.

Description

Computes the Reduced Interference Distribution with a kernel based on the Bessel function of the first kind, for a signal X.

Examples

x = hilbert(sin(2*%pi*0.25*(1:128))+0.5*rand(1,128,'normal'));
g = Cwindow(31,'rect');
h = Cwindow(63,'rect');
t = 1:128;
[tfr,T,F] = Ctfrridb(x,t,128,g,h);
grayplot(T,F,tfr');
xlabel time
ylabel frequency

See also

Authors


Report an issue
<< Ctfrri Time-Frequency representations (C - Toolbox) Ctfrridbn >>