Download presentation
Presentation is loading. Please wait.
1
Question 3 A digital, time discrete channel with intersymbol interference (ISI) has the following impulse response h = [h-1, h0, h1]T = [-0.25, 1, 0.75]T. (.)T is the matrix transpose. The ISI is being suppressed by zero-forcing equalizer with five taps w = [w-2, w-1, w0, w1, w2]T. Find the equalizer taps, w according to the zero-forcing (ZF) criterion with the desired equalizer response z = [0, 0, 1, 0, 0]T. If a single discrete pulse with amplitude 1 is being sent through the channel h, what is the system response before and after ZF equalization?
2
System block diagram y x Channel h ZF equalizer w z
3
Expanding the convolution
4
Convolution in matrix form
5
Zero forcing equalizer
6
Before ZF equalizer
7
After ZF equalizer
Similar presentations
© 2024 SlidePlayer.com Inc.
All rights reserved.