Equalisation of a TDMA QPSK satellite channel

A. P. Kalcina*, D. J. Skellern, S. Howe

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

An overview of methods currently proposed for the equalization of in-service high-speed TDMA satellite channels is provided. Three classes of techniques are identified and are (in order of decreasing cost and complexity): adaptive nonlinear equalization, linear adaptive transversal equalization and equalization by manually adjustable equalizers that are periodically adjusted using the amplitude and phase response of the channel derived from a burst mode link analyzer (BMLA). Particular attention is given to the least squares impulse response estimation (LSIRE) BMLA, which offers encouraging potential as a cost effective, software intensive method of monitoring high speed TDMA channels for the purpose of equalization. A report is given of simulated results for the LSIRE BMLA. In particular the performance of such a BMLA as a function of the traffic signal sampling resolution is presented.

Original languageEnglish
Pages (from-to)98-103
Number of pages6
JournalJournal of Electrical and Electronics Engineering, Australia
Volume7
Issue number2
Publication statusPublished - Jun 1987
Externally publishedYes

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