Beam Stabilization Beamforming Technique for Hull-Mounted Sonar Performance Enhancement

Ryu, Young-Woo

Journal of the Korea Institute of Military Science and Technology 2008;11(3):129-137.

Young-Woo Ryu

선저고정형 소나의 탐지성능 향상을 위한 빔 안정화 빔형성 기법

류영우

국방과학연구소

Abstract

Hull-Mounted Sonar(HMS) has been the main equipment to detect and track underwater threats like torpedoes and enemy submarines. The HMS has short warming-up time and is employable independently with sea-state and weather condition. But these bad environmental condition and ship maneuvering make ship's roll and pitch. Ship's roll and pitch make unstability of sensor position, then cause degradation of the HMS performance. In this paper, we will show how the unstability influences the HMS performance, propose the 'Beam Stabilization Beamforming Technique' to overcome these phenomenon. And present the effectiveness of proposed technique by comparing with conventional beamforming result.

Key Words: Hull-Mounted Sonar