Question

For all the questions below, plot your figures within the window of n= (-5, 5). Remember, all your answers must be on a single file and your script must be self-sufficient and run without any errors to receive any points. You should produce one figure. Do not plot anything that you are not instructed to do so within this document. Question 1 (100 points). For this assignment, you will use the discrete signals x[n] and y[n] that you have plotted for Assignment 1 again. You can use the scripts you have written for Assignment 1 and build on it to answer this question. • Plot the modified discrete signals c[n] = 6* x[n + 1] in red and d[n] = 1+y[ 3* n - 1] in blue on the same figure, just like you have done for x[n] and y[n] in Assignment 1.

?[?] = ?(?[?] − ?[? − 8])

?[?] = cos(2??)

Answer 1

CODE:

clc close all n = -5:1:5; x = n.* (heaviside (n)-heaviside (n-8)); y = cos(2*pi*n); % c(n) n = -5:0.5:5; k = n+1; C = 6*.* (heaviside (k)-heaviside (k-8)); subplot (2,1,1) stem(n,c,'r') title('c (n)') $ d (n) n = -5:0.25:5; k = 3*n-1; d = 1+cos (2*pi*k); subplot (2,1,2) stem(n, d, 'b') title('d(n)')

Result:

- 0 x Figure 1 File Edit View Insert Tools Desktop Window Help & USA @mo. 2 O E c(n) O 0000000000 . -5 -4 -3 -2 -1 0 1 2 3 4 5 din) 0. 51 للهلللهلاو -5 -4 -3 -2 -1 0 1 2 3 4 5