Efficient VLSI architechtures of adaptive equalizers for QAM/VSB transmission

Author

Seung Soo Chae ; Pan, Sung Bum ; Lee, Gi Hun ; Park, Rae-Hong ; Lee, Byung-Uk

Author_Institution

Dept. of Electr. Eng., Sogang Univ., Seoul, South Korea

Volume

5

fYear

1997

fDate

21-24 Apr 1997

Firstpage

4117

Abstract

This paper proposes hardware architectures of adaptive equalizers applicable to both the quadrature amplitude modulation (QAM) and vestigial sideband modulation (VSB) systems. This paper presents digitization methods for QAM and VSB systems requiring a low hardware cost with the performance comparable to that of the algorithm employing floating-point operations. To reduce the hardware cost of the high definition television (HDTV) equalizers, we also propose a pipelined architecture that processes some parallel parts sequentially

Keywords

VLSI; adaptive equalisers; digital signal processing chips; digital television; floating point arithmetic; high definition television; image reconstruction; least mean squares methods; quadrature amplitude modulation; television receivers; video signal processing; HDTV equalizers; HDTV receiver; LMS; QAM/VSB transmission; VLSI architechtures; adaptive equalizers; algorithm; constant modulus algorithm; digital broadcasting system; digitization methods; floating-point operations; hardware architectures; hardware cost reduction; high definition television; least mean square algorithm; low hardware cost; performance; pipelined architecture; quadrature amplitude modulation; sequential processing; vestigial sideband modulation; video signal reconstruction; Adaptive equalizers; Amplitude modulation; Computational complexity; Costs; Distortion; HDTV; Hardware; Quadrature amplitude modulation; Signal processing algorithms; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on

Conference_Location

Munich

ISSN

1520-6149

Print_ISBN

0-8186-7919-0

Type

conf

DOI

10.1109/ICASSP.1997.604852

Filename

604852