| A Performance Analysis on the Time Spread Highlight Synthesized Models for Underwater Active Target |
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| 수중 능동표적에 대한 시간분산 하이라이트 합성모델 성능분석 |
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김부일, 이형욱, 박명호 |
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국방과학연구소 제2체계개발본부 |
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| Abstract |
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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. |
| Key Words:
Active Sonar, Time Spread, Highlight, Target Strength, Discontinuous Point |
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