Detectability of low-level broad-band signals using adaptive matched-field processing with vertical aperture arrays

被引：46

作者：

Booth, NO

Abawi, AT

Schey, PW

Hodgkiss, WS

机构：

[1] Space & Naval Warfare Syst Ctr, Acoust Branch, San Diego, CA 92152 USA

[2] Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA

来源：

IEEE JOURNAL OF OCEANIC ENGINEERING | 2000年 / 25卷 / 03期

关键词：

array performance; array processing; detection; matched-field processing;

D O I：

10.1109/48.855260

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Alerted detection of low-level broad-band signals using adaptive matched-field processing (MFP) is illustrated in results from a shallow-water experiment carried out 12 km west of Point Loma, CAI in 200-m water of complex bathymetry, A 118-m vertical line array was deployed next to an identical line array tilted at 45 degrees. Array gain and signal excess for each of the arrays with linear and adaptive broad-band MFP is measured and compared using a low-level(118 dB//1 mu Pa-2/Hz) broad-band signal from a towed source. Surface/submerged classification was achieved at the minimum detectable level due to the depth resolution obtained with MFP. The results are compared qualitiatively with adaptive plane-wave beamforming on a horizontal Line array deployed nearby.

引用

页码：296 / 313

页数：18

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