Adaptive Rake Receiver Performance for M-ary Orthogonally Modulated Signals in the Underwater Acoustic Channel

被引：0

作者：

Corner, Tom ^{[1
]}

Neasham, Jeff ^{[1
]}

Davies, Jon ^{[2
]}

机构：

[1] Newcastle Univ, Sch Engn, Newcastle Upon Tyne, Tyne & Wear, England

[2] Covelya Grp, Yateley, England

来源：

OCEANS 2023 - LIMERICK | 2023年

关键词：

acoustic; communication; spread spectrum; adaptive equalisation; rake receiver; SPREAD-SPECTRUM;

D O I：

10.1109/OCEANSLimerick52467.2023.10244390

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Sea trial results for an Adaptive Rake Receiver (ARR) structure for the PhorcysV0 coherent spread spectrum waveform are presented. The structure utilises a normalised cross-correlation (NXC) to identify, rank and select multi-path arrivals, a multi-channel Least-Mean-Squares (LMS) equaliser, and closed-loop Doppler tracking and carrier correction. With the added computational cost of the multi-path search, the structure improved communication reliability over a single adaptive filter of the same length in demanding time-dispersed channels up to 5km in the 20-28 kHz frequency band with data rates from 375 bps to 1.6 kbps and up to 20km in the 8-12 kHz frequency band with data rates from 188 bps to 810 bps.

引用

页数：8

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