Modified synthetic aperture algorithm for sonar systems

被引:3
作者
Sawa, T. [1 ]
Aoki, T. [1 ]
Yoshida, H. [1 ]
Hyakudome, T. [1 ]
Ishibashi, S. [1 ]
Matsubara, S. [2 ]
Wright, S. [3 ]
机构
[1] Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa, Japan
[2] Marimex Japan Co Ltd, Tokyo, Japan
[3] Edgetech, W Wareham, MA 02576 USA
关键词
sonar; synthetic aperture; algorithm; correlation; latency;
D O I
10.1002/acs.1121
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
It is hard to negate the effects of ocean waves oil synthetic aperture sonar that has to be operated in the ocean and many efforts to deal with ocean waves have been made. One of these efforts is motion compensation by calculating phase errors with a computer. But the synthetic aperture algorithm with motion compensation is heavy, and remains difficult to be executed on a real-time basis. Thus, a modified synthetic aperture algorithm is proposed in this paper. This algorithm, which is named a 1.5-dimensional algorithm, is in between a one-dimensional and two-dimensional algorithm. It synthesizes a virtual aperture about 10 times faster than other algorithms in a computer simulation. Copyright (C) 2009 John Wiley & Sons, Ltd.
引用
收藏
页码:142 / 148
页数:7
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