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A Performance Analysis on the Time Spread Highlight Synthesized Models for Underwater Active Target  

김부일 (국방과학연구소 제2체계개발본부)
이형욱 (국방과학연구소 제2체계개발본부)
박명호 (국방과학연구소 제2체계개발본부)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.5, no.1, 2002 , pp. 37-44 More about this Journal
Abstract
An echo signal in the active sonar using a high frequency is mainly formed of a specular reflection from the surface of an object along with several equivalent scatter inside, which are characterized by the spatial distribution of the highlights on the object. This thesis proposed a model in which the synthesized echo signal can be expressed as a distributed simulated target. The proposed model is obtained after composing a signal based on the movement of highlights relative to the aspect angle from the discontinuous point of an external hull with a strong reflection from a spheroid underwater target. Because the proposed algorithm includes a synthesis of the signals related to the highlight spacial distribution, it can be applied to all kinds of systems used at a short range, and similar results were obtained to the actual measured results of all reflected signals in previous literature referring to the irregular factor application of an envelope.
Keywords
Active Sonar; Time Spread; Highlight; Target Strength; Discontinuous Point;
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