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
收藏
页码：296 / 313
页数：18
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