Digital Signal Processing using matlab ED2/Ingle,Proakis/2장 연습문제 solution

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Digital Signal Processing using matlab ED2/Ingle,Proakis/2장 연습문제 solution에 대한 보고서 자료입니다.

본문내용

_7(n)');
>> title('Sequence x_7(n)');
2.3 (1)
>> n1=[-12:12]; x1=[-2,-1,0,1,2];
>> x1=x1'*ones(1,5);
>> x1=(x1(:))';
>> Hs=stem(n1,x1);
>> xlabel('n'); ylabel('x_1(n)');
>> title('Sequence x_1(n)');
2.3 (3)
>> n3=[0:11]; x3=sin(0.1*pi*n3).*(stepseq(0,0,11)-stepseq(10,0,11));
>> x3=x3'*ones(1,4);
>> x3=(x3(:))';
>> n3=[-12:35];
>> Hs=stem(n3,x3);
>> xlabel('n'); ylabel('x_3(n)');
>> title('Sequence x_3(n)');
2.8 (2)
>> n1=[-50:50];
>> x1=sin(0.125*pi*n1);
>> [y1,m1]=dnsample(x1,n1,4);
>> subplot(2,1,1);
>> Hs=stem(n1,x1);
>> xlabel('n'); ylabel('x(n)');
>> title('Original sequence x_1(n)');
>> subplot(2,1,2);
>> Hs=stem(m1,y1);
>> xlabel('n'); ylabel('y(n)=x(4n)');
>> title('y_1(n)=Original sequence x_1(n) decimated by a factor of 4');
2.8 (3)
>> n2=[-50:50];
>> x2=sin(0.5*pi*n2);
>> [y2,m2]=dnsample(x2,n2,4);
>> subplot(2,1,1);
>> Hs=stem(n2,x2);
>> xlabel('n'); ylabel('x_(n)');
>> title('Original sequence x_2(n)');
>> subplot(2,1,2);
>> axis([min(m2)-1,max(m2)+1,min(y2)-1,max(y2)+1]);
>> Hs=stem(m2,y2);
>> xlabel('n'); ylabel('y_(n)=x(4n)');
>> title('y_2(n)=Original sequence x_2(n) decimated by a factor of 4');
2.15 (1)
>> n1=-3:3;
>> x=[2 -4 5 3 -1 -2 6];
>> n2=-1:3;
>> h=[1 -1 1 -1 1];
>> [y,n]=conv_m(x,n1,h,n2);
>> y,n
y =
2 -6 11 -8 7 -7 9 -4 7 -8 6
n =
-4 -3 -2 -1 0 1 2 3 4 5 6
2.15 (3)
안됨
2.19 (a)
>> b=[1 2 0 1];
>> a=[1 -0.5 0.25];
>> [delta,n]=impseq(0,0,100);
>> h=filter(b,a,delta);
>> Hs=stem(n,h);
>> axis([min(n)-5,max(n)+5,min(h)-0.5,max(h)+0.5]);
>> xlabel('n'); ylabel('h(n)');
>> title('Impulse Response');
2.19 (b)
안정하다.
2.19 (c)
>> b=[1 2 0 1];
>> a=[1 -0.5 0.25];
>> n=0:200;
>> x=5*ones(size(n))+3*cos(0.2*pi*n)+4*sin(0.5*pi*n);
>> y=filter(b,a,x);
>> Hs=stem(n,y);
>> axis([-10,210,0,50]);
>> xlabel('n'); ylabel('y(n)');
>> title('Output Response');

키워드

DSP,   Digital Signal Processing,   Ingle,   Proakis,   Digital Signal Processing using matlab ED2,   matlab