ip_06_05.m
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上传日期:2013-03-02
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- % MATLAB script for Illustrative Problem 5, Chapter 6.
- echo on
- p=0.99;
- N=1000;
- d=5;
- % The filter is described by the vectors A and B below...
- A=[1 -2*p p^2];
- B=(1-p)^2;
- for i=1:N,
- [white_noise_seq1(i) white_noise_seq2(i)] = gngauss;
- echo off;
- end;
- echo on;
- b1=filter(B,A,white_noise_seq1);
- b2=filter(B,A,white_noise_seq2);
- c=b1(d+1:N)+b2(1:N-d);
- % The case where p=0.9 follows...
- p=0.9;
- A=[1 -2*p p^2];
- B=(1-p)^2;
- for i=1:N,
- [white_noise_seq1(i) white_noise_seq2(i)] = gngauss;
- echo off;
- end;
- echo on;
- new_b1=filter(B,A,white_noise_seq1);
- new_b2=filter(B,A,white_noise_seq2);
- new_c=new_b1(d+1:N)+new_b2(1:N-d);
- % plotting commands follow
- plot(1:N,b1,'-',1:N,b2,'--',1:N-d,c,':') ;
- pause % p=0.99 ; Press a key to see results with pole at p=0.9
- plot(1:N,new_b1,'-',1:N,new_b2,'--',1:N-d,new_c,':') ;