%??用平移變換平移法（cycle_spinning）消除gibbs效應
%??編程人????沙威（Wei?Sha）?安徽大學（Anhui?University）?ws108@ahu.edu.cn

clear;
clc;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%??1.原始信號

f=50;????%?信號頻率
fs=800;??%?采樣頻率
N=128;???%?采樣點?

%??信號賦值
n=1:N;
y=sin（2*pi*f*n/fs）;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%??2.噪聲
noise=0.4*rand（1128）;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%??3.染噪信號
y_noise=y+noise;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%??4.硬消噪采用cycle_spinning技術

%??累加量
z5=zeros（1N）;

%??平移變換頻移法
for?i=1:N;
????z=circshift（y_noise.‘i-1）.‘;??%??源信號右平移
????[z1z2]=lwt（z‘db3‘）;????%??小波正變換
????z2=zeros（1N/2）;?????????%??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1441??2007-06-12?10:33??cycle_spinning.m
?????文件?????????218??2007-06-04?14:14??www.pudn.com.txt