Question

Q1. Plot 20 periods of a triangle wave and its' derivative with a fundamental frequency of 50 Hz. The sample rate is 500 Hz. Set the time vector as [o, 0.4] and increase by 1/f, Use subplot and grid on commands, label all the axes and name the graph with your name, i.e: Aylin's Signal, Aylin's Signal Derivative. (10 pts) Hint: Use sawtooth function, in order to obtain fully triangular wave, construct the signal as sawtooth (wt, 1/2)

Answer 1

clc
close all
fm=50;%fundamental freqency
wm=2*pi*fm;%frequency in radians
tt=4; % signal duration
fs=500;% sampling freqency
ti=1/500;
t=0:ti:tt-ti;
op=sawtooth(wm*t);%saw tooth signal

dop=diff(op);% differentiated signal
figure;subplot(2, 1, 1);plot(t,op);xlabel('time');title('sawtooth signal');
subplot(2, 1, 2);plot(t,dop);xlabel('time');title('sawtooth differinated signal');