Ask
Login
0
6.4kviews
Determine whether or not the following signals are periodic. If periodic specify its fundamental period.
written 9.0 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.8 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

Mumbai University > Computer Engineering > Sem 7 > Digital Signal Processing

Marks: 10 Marks

Year: May 2016
digital signal processing
ADD COMMENT EDIT
1 Answer
0
278views
written 9.0 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 9.0 years ago

  1. $x(n) = \sin(0.25\pi n + 0.4)$

    Solution:

    Consider Standard equation $x(n) = A \cos(\pi n+\theta)$

    Comparing given signal we get, $\omega n = 0.25 \pi n \\ \therefore 2\pi fn = \dfrac {\pi n}{4} \\ \therefore f = \dfrac18$

Result : Given signal, x(n) is periodic with Fundamental Period,N = …

Create a free account to keep reading this post.

and 5 others joined a min ago.

ADD COMMENT EDIT
Please log in to add an answer.