Noise+Analysis 源代码

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % xngen.m - Generating sinewave with noise in data file %%%%%%%%%%%%…

tic % the data of signal clear; format short; c=3*10.^8; L=6; N=128*2; fm1=0.25;%fc1=0.275; Km1=0.025; Phia=0; f0=0.…

A=[1 -0.5 0.7];B=[0 1 0.5]; th0=poly2th(A,B); u=idinput(300, 'rbs'); y=idsim([u,randn(300,1)],th0); m=[y u]; Mi = [2 2 3 1 1 …

% y = iddata(sin([1:500]'*1.2) + sin([1:500]'*1.5) + 0.2*randn(500,1),[]); % miv = ivar(y,4); % mls = ar(y,4); % bode(miv,mls) …

AWGN Add white Gaussian noise to a signal. WGN Generate white Gaussian noise.

[y,fs,b]=wavread('2.wav'); for m=513:1024 z(m-512)=y(m); end Y2=fft(z); Y2=abs(Y2); for m=1025:1536 z(m-10…

[y,fs,b]=wavread('2.wav'); for m=513:1024 z(m-512)=y(m); end Y2=fft(z); Y2=abs(Y2); for m=1025:1536 z(m-10…

clear; clc; N=10000; noise=10*randn(N,1); a=ones(N,1); z=a+noise; mean(noise.^2); t=sqrt(mean(noise.^2)-mean(noise)^2)

9 Algorithms 1 34 Analysis 4 34 50 67 0 Computer 2 5 34 Data 3 5 10 23 Design 1 34 Fundamentals 1 23 Intr…

9 Algorithms 1 34 Analysis 3 34 50 67 Computer 2 5 34 Data 3 5 10 23 Design 1 34 Fundamentals 1 23 Introd…