수중 무인정 궤적 교란에 따른 SAS 방위해상도 영향에 대한 분석

Abstract

ABSTRACT Active synthetic aperture sonar on the small UUV is generated several trajectory disturbances under the influences of underwater environments, and causing a large error in the synthetic aperture processing. In this paper, we analyzed the effects of azimuth resolution for the phase mismatch of the synthetic aperture focus processing when the periodic or random trajectory disturbances was generated on the side direction. The simulation results show that ghost targets are generated and azimuth resolution is very deteriorated when disturbance amplitude is greater than  and disturbance period is greater than   in the periodic trajectory disturbances environments. And detection performance on the seabed small objects by the synthetic aperture processing is shown that there is a significant effects on the azimuth resolution depending on the types and conditions of the platform trajectory disturbance variations. 키워드 : 합성개구면소나, 궤적교란, 방위해상도, 수중무인정 Key word : Synthetic aperture sonar, Trajectory disturbance, Azimuth resolution, UUV Journal of the Korea Institute of Information andCommunication Engineering