scfig26.m

来自「老外写的小波变换的工具箱」· M 代码 · 共 27 行

% scfig26 -- Short Course 26: Sine signal with Cauchy Contamination
%
% (Panel a) shows a sinusuoid and (Panel b) the same sinusoid
% contaminated with Cauchy noise. Cauchy noise has infinite variance and
% hence enormous outliers.  Those outliers skew the plot scaling so that
% they are the only thing visible in (Panel b).
%
global SineSig ySine
%
	SineSig = 4 .* sin( (1:729) ./40 );
% 	clf; 
	versaplot(211,[],SineSig,[],' 26 (a) Signal',[],[])
%
	z = WhiteNoise(SineSig) ./ WhiteNoise(SineSig); % Cauchy = Z/Z
	ySine = SineSig+z;
	versaplot(212,[],ySine,[],' 26 (b) Signal with Cauchy Noise',[],[]);
    
    
 
 
%
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