access ic lab graduate institute of electronics engineering, ntu adaptive signal processing...
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ACCESS IC LAB
Graduate Institute of Electronics Engineering, NTU
Adaptive Signal ProcessingAdaptive Signal Processing-Equalization--Equalization-
Ben
Advisor: Prof. An-Yeu Wu
2008/01/22
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
pp. 2
OutlineOutline
Introduction Applications What You Will Learn Background Needed
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
pp. 3
What’s Equalization? (1/2)What’s Equalization? (1/2)
CommunicationChannel
u(n)t(n)Equalizer y(n)
( Eliminate Noise and Channel Effect)
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
pp. 4
What’s Equalization? (2/2)What’s Equalization? (2/2)
Without Equalization With Equalization
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
x 104
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
index n
Am
plitu
de
Without Equalization
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
x 104
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
index n
Am
plitu
de
With Equalization
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
pp. 5
Application I: 10 Gigabit Ethernet Application I: 10 Gigabit Ethernet
THP Encoding DAC
Hybrid
THP Encoding DAC
Hybrid
LDPC Encoder
LDPC Decoder
PAM12 Mapper
framer
Deframer
XG
MII
THP Encoding DAC
Hybrid
THP Encoding
ADC
DAC
Hybrid
FFE
Echo Canceller
THPNEXT CancellerNEXT
Canceller
+
++
x4
FEXT CancellerFEXT
CancellerFEXT
Canceller
Equalizer Design!!
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
pp. 6
Application II: Neural NetworkApplication II: Neural Network
突觸
(神經細胞之 )
軸索 EqualizationPattern RecognitionControlOptical Communicationetc…
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
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Application III: High Definition TV Application III: High Definition TV (HDTV)(HDTV)
ATSC EQ
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
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Application IV: Wireless SystemApplication IV: Wireless System
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
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Why Equalization So Important?Why Equalization So Important?
There must be a equalization technique for any communication system
Equalizer design is very important in any communication system !!!
Channel Decoder
FFE
+
errore(n)
symbols(n)
Compensate ISI terms Compensate AWGN
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
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What You Will LearnWhat You Will Learn
Adaptive EqualizationArchitecture
DSPVLSI
Design
AdaptiveEqualization
Algorithm
EqualizerDesign
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
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Expected ResultExpected Result
Paper survey Algorithm domain Architecture domain
Study advanced signal processing Matlab simulation of equalizer design Presentation skills
ACCESS IC LAB Graduate Institute of Electronics Engineering, NTU
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Background NeededBackground Needed
Signal and Systems Matlab or C Enthusiasm