REDUCED COMPLEXITY TRELLIS DETECTION OF SOQPSK-TG

Autor:	Nelson, Tom
Rok vydání:	2006
Předmět:	Tier 1 waveforms SOQPSK-TG Aeronautical Telemetry Trellis Detection XTCQM
Druh dokumentu:	Proceedings<br />Text
ISSN:	0884-5123 0074-9079
Popis:	ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California The optimum detector for shaped offset QPSK (SOQPSK) is a trellis detector which has high complexity (as measured by the number of detection filters and trellis states) due to the memory inherent in this modulation. In this paper we exploit the cross-correlated, trellis-coded, quadrature modulation (XTCQM) representation of SOQPSK-TG to formulate a reduced complexity detector. We show that a factor of 128 reduction in the number of trellis states of the detector can be achieved with a loss of only 0.2 dB in bit error rate performance as compared to optimum at P(b) = 10^(-5).
Databáze:	Networked Digital Library of Theses & Dissertations
Externí odkaz:	http://hdl.handle.net/10150/604055 http://arizona.openrepository.com/arizona/handle/10150/604055 Zobrazit plný text záznamu