SHERP

Fast initialization of equalizers for VSB-based DTV systems in multipath channel

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Authors
Kim, Jong-Moon; Lee, Yong-Hwan
Issue Date
2004-05-17
Publisher
Institute of Electrical and Electronics Engineers
Citation
VTC 2004-Spring. 2004 IEEE 59th Vehicular Technology Conference, vol. 1, pp. 430-434, 2004
Keywords
initializationequalizersDTVmultipath
Abstract
This paper proposes a fast initialization technique
for equalization of 8-VSB based digital television (DTV) signal in
severe multipath channels. We consider the use of a modified
decision feedback equalizer (MDFE) [1,2] for fast initialization.
The feedback filter (FBF) of the MDFE can be initialized simply
by estimating the channel impulse response and only the
feedforward filter (FFF) of the MDFE need training for
initialization. To overcome the shortage of the training sequence
in the VSB DTV signal, we propose a new initialization method
by generating a virtual training signal to initialize the FFF of the
MDFE. Simulation results show that the proposed scheme can
fast initialize the equalizer using less than 5000 symbols, while
providing the receiver performance comparable to that of
conventional schemes.
Language
English
URI
http://www.ieeevtc.org/vtc2004spring/panelsessions.html

http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1387989

http://hdl.handle.net/10371/7270
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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