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VLSI implementation of an adaptive equalizer for ATSC digital TV receivers

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Authors
Sung, Wonyong; Ahn, Youngho; Hwang, Eunjoo
Issue Date
2005-07
Publisher
Springer Verlag
Citation
Journal of VLSI Signal Processing, 2005, vol. 40, no. 3, pp. 301-310
Keywords
adaptive equalizerHDTV receiverVLSI implementationVSB modulation
Abstract
An adaptive equalizer for ATSC standard HDTV
receivers is developed and implemented in VLSI. This
equalizer is based on the G-pseudo algorithm that
combines the advantages of the decision directed and
blind algorithms. It also conducts ghost canceling for the
reception of NTSC analog TV signals. A programmable
error calculation unit is employed for a flexible
implementation of several equalization algorithms. The
filter coefficients have a quite long internal word-length
for a satisfactory operation in the blind adaptation mode,
but only parts of them are used for output calculation to
reduce the hardware complexity. The performance of the
system for seven GA reference channels is evaluated
according to the adaptation algorithms, the number of
delays for the adaptation, and the word-length of the filter
coefficients. The chip area and power consumption
according to the time multiplexing ratio are estimated.
ISSN
0922-5773 (print)
1573-109X (online)
Language
English
URI
http://hdl.handle.net/10371/6146
DOI
https://doi.org/10.1007/s11265-005-5266-2
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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