直升机掠海飞行海浪滤波器研究  

Study of the Seawave Filter for the Helicopter Skimming-over-the Sea Flight

作　　者：李广文[1] 唐永哲[1] 王冬[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《空军工程大学学报（自然科学版）》2004年第5期18-20,共3页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：航天科技创新基金资助项目(2001CH0901)

摘　　要：研究了直升机掠海飞行时海浪滤波器和高度组合系统设计问题,给出了运动坐标系下海浪谱,借鉴直升机海面悬停时精确高度的维纳滤波提取法,利用伯特-香农法设计了掠海飞行海浪滤波器,给出了高度组合系统,结合某型直升机做了仿真,验证了海浪滤波器和高度组合系统的有效性。This article studies the problem of designing a seawave filter and a high integrative system for the helicopter skimming-over-the sea flight. In order to research this question, a sea spectrum in the kinetic coordinate system is derived. Based on Bode-Shanon method, the Wiener filter and the high integrative system are designed. A simulation by a kind of helicopter is made to test the validity of the designed method.

关 键 词：掠海飞行 运动坐标系 海浪谱 伯特-香农法 维纳滤波器 高度组合系统 

分 类 号：V24[航空宇航科学与技术—飞行器设计]