Question

Write MATLAB code to plot the following waveforms.   

1. Rectangular pulses:
   1. ????(?)
   2. ????(? − ?)
   3. ????(?/?)  

For ? and ?, choose any values that make sense.

2. Triangular pulses:
   1. Δ(?)
   2. Δ(? − ?)
   3. Δ(?/?)   

For ? and ?, choose any values that make sense.

Answer 1

1)

clc;close all;clear all;

%rect(t)

x=@(t) (t>=-0.5 & t<=0.5);

T=1;tow=2;

t=-2:0.001:2;

figure;

subplot(221);plot(t,x(t));xlabel('t');ylabel('rect(t)');title('rect(t)');grid;

subplot(222);plot(t,x(t-T));xlabel('t');ylabel('rect(t-1)');title('rect(t-1)');grid;

subplot(223);plot(t,x(t/tow));xlabel('t');ylabel('rect(t/tow)');title('rect(t/2)');grid;

2)

clc;close all;clear all;

%triangular pulses

x=@(t) (1-(abs(t))).* (t>=-1 & t<=1);

T=1;tow=2;

t=-2:0.001:2;

figure;

subplot(221);plot(t,x(t));xlabel('t');ylabel('tri(t)');title('tri(t)');grid;

subplot(222);plot(t,x(t-T));xlabel('t');ylabel('tri(t-1)');title('tri(t-1)');grid;

subplot(223);plot(t,x(t/tow));xlabel('t');ylabel('tri(t/tow)');title('tri(t/2)');grid;