수중표적의 고주파수 CW 펄스선호 반사를 위한 하이라이트 분포 모델링 해석

An Analysis of Highlight Distribution Modeling for High Frequency CW Pulse Signal Reflection on Underwater Target

This paper proposes the practical echo-signal synthesis models - UTARID(Underwater TArget by Hlghlight Distribution) & M-UTAHID(Modified UTAHID) - of underwater target for active sonar engineering. At high frequencies all the echo components that are the specular reflected waves and various elastic scattering waves can be regarded the summation of individual echo from some equivalent scattering centers, so the underwater target is characterized by highlights distributed in spatial target structure. Proposed models are compared with characteristics of random distributed model & equivalent interval highlight model, and analyzed target strength, echo-elongation effect, target time spread loss and so on. Thus these can be efficiently used in various real systems related to underwater target echo-signal synthesis on active sonar and acoustic countermeasure.