Reverberation Suppression Using Wideband Doppler-Sensitive Pulses

被引：43

作者：

Doisy, Yves ^{[1
]}

Deruaz, Laurent ^{[1
]}

van Ijsselmuide, Sander P. ^{[2
]}

Beerens, S. Peter ^{[2
]}

Been, Robert ^{[2
,3
]}

机构：

[1] Thales Underwater Syst SAS, F-06903 Sophia Antipolis, France

[2] Netherlands Org Appl Sci Res TNO, Phys & Elect Lab FEL, NL-2509 JG The Hague, Netherlands

[3] NURC, I-19126 La Spezia, Italy

来源：

IEEE JOURNAL OF OCEANIC ENGINEERING | 2008年 / 33卷 / 04期

关键词：

Active sonar; Doppler; matched filter; reverberation; sonar waveforms;

D O I：

10.1109/JOE.2008.2002582

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The influence of transmitted waveforms on the signal-to-reverberation ratio (SRR) of a low-frequency active sonar is analyzed both theoretically and experimentally. Reverberation experiments have been conducted during a sea trial in a littoral water environment in October 1999. The aim of the trials wits to compare the performance of three classes of waveforms: standard hyperbolic frequency-modulated (HFM) waveforms, continuous waveforms (CWs), and innovative pulse trains of linear frequency-modulated (PTFM) waveforms. Transmissions were combined (CW/PTFM train) or intermitted (HFM) to compare the performance of the three classes in (exactly) the same environment. Experimental results fit highly reverberant environment illustrated that PTFM pulses allow a reduction in reverberation power greater than 10 dB over the standard detection pulses for slowly moving targets. The results are in agreement with theoretical predictions.

引用

页码：419 / 433

页数：15

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