xiaobo2.m

局部放电的n-q-phi和dltU处理程序

load sumsin
s=sumsin;
[c,l]=wavedec(s,4,'sym1');
[nc,nl]=upwlev(c,l,'sym1');
subplot(311);plot(s);title('原始信号');
subplot(312);plot(c);title('做4层wavedec得到的结果');
subplot(313);plot(nc);title('做3层wavedec得到的结果');