Decision-directed passive phase conjugation: equalisation performance in shallow water

被引：8

作者：

Flynn, JA

Ritcey, JA

Fox, WLJ

Jackson, DR

Rouseff, D

机构：

[1] Univ Washington, Dept Elect Engn, Seattle, WA 98105 USA

[2] Univ Washington, Appl Phys Lab, Coll Ocean & Fishery Sci, Seattle, WA 98105 USA

来源：

ELECTRONICS LETTERS | 2001年 / 37卷 / 25期

关键词：

Algorithms - Bandwidth - Bit error rate - Demodulation - Least squares approximations - Maximum likelihood estimation - Spurious signal noise;

D O I：

10.1049/el:20011030

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A decision-directed extension to passive phase conjugation array demodulation is described. Initialisation by a training preamble is followed by block least-squares channel estimation via conjugate gradient and memoryless decisions, which are used by estimation in the next block. Excellent shallow-water performance is shown at ranges up to 4.6 km under windy conditions and shipping noise. The algorithm demonstrates low error rate and robust channel tracking.

引用

页码：1551 / 1553

页数：3

共 7 条

[1]

[Anonymous], 1988, Parameter estimation and hypothesis testing in linear models

[2] CONJUGATE-GRADIENT TECHNIQUES FOR ADAPTIVE FILTERING [J].