(New page: ==Problem 2== (a) Compute the energy E infinity y[n]=e^2+j4.71235n <n><math>lim</math> from T to -T as T goes to infinity |y[n]|^2 |y[n]|^2= (e^2.e^jw)^2 = e^4.1 = e^4 us...)
 
Line 1: Line 1:
==Problem 2==
+
[[Category: ECE]]
 +
[[Category: ECE 301]]
 +
[[Category: Summer]]
 +
[[Category: 2008]]
 +
[[Category: asan]]
 +
[[Category: Exams]]
 
(a)
 
(a)
 
Compute the energy E infinity
 
Compute the energy E infinity

Revision as of 10:13, 21 November 2008

(a) Compute the energy E infinity

y[n]=e^2+j4.71235n <n>$ lim $ from T to -T as T goes to infinity |y[n]|^2 |y[n]|^2= (e^2.e^jw)^2

       = e^4.1
       = e^4

using the E infinity formula from the textbook

=[e^4](T-(-T) =2e^4T =inf

(b) lim T->inf and integrate from -2 to 2 because of function delta(t+2)-delta(t-2) Use the same formula above.

=[e^4](2+2) =4e^4

Alternative Solutions

Problem 2 (2)

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang