The following MATLAB commands create a sine-shaped signal y(t) that contains ran
ID: 3812561 • Letter: T
Question
The following MATLAB commands create a sine-shaped signal y(t) that contains random noise: t = 0:.05:10; y = sin (t)-0.1+0.2*rand (1, length (t)); Write a MATLAB program that uses these commands to create a noisy sine-shaped signal. Then the program smooths the signal by using the threepoints moving-average method. In this method the value of every point i, except the first and last, is replaced by the average of the value of three adjacent points (i-1, i and i+1). Make a plot that display the noisy and smoothed signals.Explanation / Answer
t = 0:0.05:10;
noisySignal = sin(t)-0.1+0.2*rand(1, length(t));
smoothSignal = movmean(noisySignal, 3);
plot(t,noisySignal);
plot(t,smoothSignal;)