A multichannel lattice algorithm for real-time blind equalization

Author

Gomes, João ; Barroso, Victor

Author_Institution

Inst. de Sistemas e Robotica, Inst. Superior Tecnico, Lisbon, Portugal

Volume

1

fYear

1998

fDate

1998

Firstpage

445

Abstract

The super-exponential algorithm is a useful block-based technique for blind equalization of communication channels. The original algorithm may be modified to allow recursive updating using smaller blocks, thus improving its tracking performance. This paper discusses the most relevant features of a hardware-oriented version of the fractionally-spaced recursive algorithm using a multichannel lattice filter. Its highly modular scalar structure is well suited for implementation using parallel DSP hardware, and it may readily benefit from multiple arithmetic units that are integrated inside modern DSP chips

Keywords

blind equalisers; filtering theory; lattice filters; numerical stability; real-time systems; telecommunication channels; DSP chips; block-based technique; communication channels; fractionally-spaced recursive algorithm; highly modular scalar structure; multichannel lattice algorithm; multichannel lattice filter; multiple arithmetic units; parallel DSP hardware; real-time blind equalization; recursive updating; super-exponential algorithm; tracking performance; Arithmetic; Blind equalizers; Digital signal processing chips; Filters; Frequency; Hardware; Intersymbol interference; Lattices; Resonance light scattering; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1998 IEEE International Conference on

Conference_Location

Lisboa

Print_ISBN

0-7803-5008-1

Type

conf

DOI

10.1109/ICECS.1998.813359

Filename

813359