A Study to improve a Target Localization Performance using Passive Line Arrays buried in the Seabed

Yang, In-Sik

Journal of the Korea Institute of Military Science and Technology 2005;8(2):49-57.

In-Sik Yang

매설된 선배열 음향센서를 이용한 표적 위치추정 성능향상 기법 연구

양인식

국방과학연구소

Abstract

The target localization using the line arrays buried in the seabed is a difficult problem due to the complex sea bottom characteristics and need to compensate the wave propagation effect to localize the target accurately Sound speed mismatch in the seabed causes a bias in the target bearing estimation and induces the localization error. In this paper we describe a target localization method with improved accuracy of target bearing and localization by calibration the sound speed in the seabed. The proposed algorithm is verified through the ocean data.

Key Words: Target Motion Analysis, Target Localization, Internal Wave, Sound Velocity Profile, Ambiguity area, Preformed Beam(PFB)