CAJ | 학술논문

研究了线列阵声纳应用常规波束形成方法进行目标被动定位的理论性能.在反潜战中,重型热动力鱼雷是潜艇面临的重要威胁.为对鱼雷实施被动定位,推导了常规波束形成方法目标被动定位的渐进方差,并与克拉美-劳下界进行了比对分析.此外,通过数值方法研究了信号强度、目标位置、基阵孔径和积分时间等参数对被动定位性能的影响.结果表明:应用现有的声纳设备(如潜艇舷侧阵)来解决中等距离的鱼雷被动定位问题是完全可能的.
연구료선렬진성납응용상규파속형성방법진행목표피동정위적이론성능.재반잠전중,중형열동력어뢰시잠정면림적중요위협.위대어뢰실시피동정위,추도료상규파속형성방법목표피동정위적점진방차,병여극랍미-로하계진행료비대분석.차외,통과수치방법연구료신호강도、목표위치、기진공경화적분시간등삼수대피동정위성능적영향.결과표명:응용현유적성납설비(여잠정현측진)래해결중등거리적어뢰피동정위문제시완전가능적.
The performance of passive localization via conventional beamforming (CBF) by using uniform linear array has been investigated in this paper. In order to locate the noisy underwater target-the heavy thermal powered torpedoes usually confronted in anti-submarine war (ASW), the asymptotic estimate error of CBF is analyzed and compared with the Cramer-Rao bound (CRB) to show the passive localization performance, thereafter, the factors such as the signal strength, target location, array aperture and observation time have also been investigated via numerical simulations. The results show that the middle-range passive localization of torpedoes can be probably solved by using the existing SONAR equipment (such as flank array SONAR).