Code 12

 fs=500;

t=0:1/fs:0.1;

y1=t;

subplot(2,2,1);

plot(t,y1);

xlabel('time');

ylabel('amplitude');

title('ramp signal');

%generation of ramp sequence

subplot(2,2,2);

stem(y1);

xlabel('n');

ylabel('amplitude');

title('ramp sequence');

%generation of impulse signal

y2=(t==0);

subplot(2,2,3);

plot(t,y2); axis([-1 1 0

1]) xlabel('time');

ylabel('amplitude');

title('impulse signal');

%generation of impulse sequence

subplot(2,2,4);

stem(y2);

xlabel('n');

ylabel('amplitude');

title('impulse sequence');

%generation of unit step signal

n=-10:1:10;

y3=(n>=0);

figure;

subplot(2,2,1);

plot(n,y3);

xlabel('time');

ylabel('amplitude');

title('unit step signal');

%generation of unit step sequence

subplot(2,2,2);

stem(n,y3);

xlabel('n');

ylabel('amplitude');

title('unit step sequence');

%generation of square wave signal

y4=square(2*pi*50*t);

subplot(2,2,3);

plot(t,y4);

axis([0 0.1 -2 2]);

xlabel('time');

ylabel('amplitude');

title('square wave signal');

%generation of square wave sequence

subplot(2,2,4);

stem(y4);

xlabel('n');

ylabel('amplitude');

title('square wave sequence');

%generation of sawtooth signal

y5=sawtooth(2*pi*50*t);

figure;

subplot(2,2,1);

plot(t,y5);

axis([0 0.1 -2 2]);

xlabel('time');

ylabel('amplitude');

title('sawtooth wave signal');

%generation of sawtooth sequence

subplot(2,2,2);

stem(y5);

xlabel('n');

ylabel('amplitude');

title('sawtooth wave sequence');

%generation of triangular wave signal

y6=sawtooth(2*pi*50*t,.5);

subplot(2,2,3);

plot(t,y6);

axis([0 0.1 -2 2]);

xlabel('time');

ylabel('amplitude');

title(' triangular wave signal');

%generation of triangular wave sequence

subplot(2,2,4);

stem(y6);

xlabel('n');

ylabel('amplitude');

title('triangular wave sequence');

%generation of sinsoidal wave signal

y7=sin(2*pi*50*t);

figure;

subplot(2,2,1);

plot(t,y7);

axis([0 0.1 -2 2]);

xlabel('time');

ylabel('amplitude');

title(' sinsoidal wave signal');

%generation of sin wave sequence

subplot(2,2,2);

stem(y7);

xlabel('n');

ylabel('amplitude');

title('sin wave sequence');

%generation of sinc signal

t1=linspace(-5,5);

y8=sinc(t1);

subplot(2,2,3);

plot(t1,y8);

xlabel('time');

ylabel('amplitude');

title(' sinc signal');

%generation of sinc sequence

subplot(2,2,4);

stem(y8);

11

xlabel('n');

ylabel('amplitude');

title('sinc sequence');

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