m2_practice - ECE 562 Fall 2011 November 16, 2011 PRACTICE...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ECE 562 Fall 2011 November 16, 2011 PRACTICE EXAM 2 1. True or False. Determine if the following statements are True or False. You need to provide a brief justification for your answer to get credit. (a) A binary DPSK system in AWGN has P b = 10- 4 . It is possible to use the same power and achieve a P b 10- 6 by cutting the bit rate in half. (b) The pulse x ( t ) = e-| t | sinc t T satisfies the Nyquist criterion for zero ISI with symbol period T . (c) The zero-forcing equalizer always maximizes the SINR at its output. (d) The Viterbi algorithm for equalization produces the MPE estimate of the trans- mitted symbol sequence even when the symbols are correlated in time. (e) Z z exp- z 2 4 I ( z ) dz = 2 e 2. Bi-orthogonal signaling. Consider the signal set with M = 2 N signals given by: s m ( t ) = E g m ( t ) m = 1 ,...,N- E g m- N ( t ) m = N + 1 ,...,M. where { g k ( t ) } N k =1 are orthonormal functions....
View Full Document

Page1 / 2

m2_practice - ECE 562 Fall 2011 November 16, 2011 PRACTICE...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online