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Target Localization By Two Passive Linear Arrays

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4 Author(s)
Ning Ma ; DSO Nat. Lab., Singapore ; Chin Swee Chia ; Rong Yang ; Gee Wah Ng

Harbor and port protection has become more important in recent years due to the increasing terrorist threats. A surveillance sonar system plays an important role as part of the overall protection system. In this paper, we will discuss a target localization technique by using multiple fixed passive linear hydrophone arrays. Linear array has a better resolution than circular and nonlinear array, but the left-right ambiguity of a linear array and multiple targets will cause ghost crosses, which makes it difficult to localize the real target. We have proposed to use the bearing measurements in each arrays and TDOA method for target localization by two linear arrays.

Published in:

OCEANS 2006 - Asia Pacific

Date of Conference:

16-19 May 2007