| Line 8: | Line 8: | ||
1. Compute and Sketch the graph of the DTFT of | 1. Compute and Sketch the graph of the DTFT of | ||
| − | <math> x_d[n] = cos(2*pi*250 * (1/400) )</math> | + | <math> x_d[n] = cos(2*(\pi)*250 * (1/400) )</math> |
| Line 14: | Line 14: | ||
2. If x(t) is <math> (1/8)*sinc((t-15)/7) </math> | 2. If x(t) is <math> (1/8)*sinc((t-15)/7) </math> | ||
| − | find <math> | + | find <math> (\chi)(f) and plot abs((\chi)(f)) </math> |
Revision as of 19:46, 23 April 2017
Sample Final Exam
ECE 438
Fall 2016
Instructor: Prof. Mireille Boutin
All questions below are derived from the homework of Prof. Mireille Boutin, all rights reserved by Prof. Mireille Boutin.
1. Compute and Sketch the graph of the DTFT of $ x_d[n] = cos(2*(\pi)*250 * (1/400) ) $
2. If x(t) is $ (1/8)*sinc((t-15)/7) $
find $ (\chi)(f) and plot abs((\chi)(f)) $
