Question

Problem 4 a) Determine the periods of the following two signals. b) Plot the signals between 0 program). sec and ST (T is period) using computer (attach your plot and 10 15 -15A-10
Please slove using MATLAB

Answer 1

The square wave repeats at each 10s hence the period of the square wave is T=10s.

The sawtooth wave repeats at each 10s hence the period of the sawtooth wave is T=10s.

%%----------------------------------------MATLAB CODES----------------------------------------------%%

%%-------------------------Square Wave-------------------------------%%
T=10; %time periof T=10s
t=0:0.01:5*T;                     %plot upto 5*T
x=square(2*pi*0.1*t);    % 2*pi*f*t where f(frequency)=1/T =0.1
plot(t,x,'r') %plotting the curve
axis ([0 5*T -2 2])              % determining the ploting range
xlabel('time'),ylabel('y') %label teh axis
title('Square wave')          %give it a name

%%------------------------------------------------------------------------------%%save it with square

%%----------------------------Sawtooth Wave-----------------------------%%
T=10;                                         %time periof T=10s
t=0:0.01:5*T;                             %plot upto 5*T
x=sawtooth(2*pi*0.1*(t-5));   % 2*pi*f*t where f(frequency)=1/T =0.1,with a shift of 5s (delay)
plot(t,x,'r')                                %plotting the curve
axis ([0 5*T -2 2])                     % determining the ploting range
xlabel('time'),ylabel('y')          %label teh axis
title('Sawtooth wave')             %give it a name​

%%-----------------------------------------------------------------------------------%% save it with name sawtooth

Please note for proper execution of the code save each of the code in different mfile and run the simulation.

Plots obtained from the codes:

SQUARE WAVE :

  

SAWTOOTH WAVE: