电磁发射装置弹丸弹道姿态测量  

Research on Ballistic Attitude Measurement of Projectile in Electromagnetic Launcher

作　　者：李松乘 鲁军勇[1] 程龙 李湘平 Li Songcheng;Lu Junyong;Cheng Long;Li Xiangping(National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering,Wuhan 430033 China)

机构地区：[1]舰船综合电力技术国防重点实验室(海军工程大学),武汉430033

出　　处：《电工技术学报》2020年第23期4835-4842,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51877214,51607187);国家重点基础研究发展计划(613262)资助。

摘　　要：电磁发射装置是一种依靠电磁能将弹丸以极快的速度推射出膛的电气设备。该文针对弹丸弹道姿态测量问题,提出一种基于高速摄像技术以及图像增强与边缘提取后处理技术的弹丸姿态测量方法。由于弹丸运动速度极快,采用高速摄像技术对飞行中的弹丸进行拍摄,同时鉴于摄像设备硬件以及拍摄条件限制,提出一种基于伽马变换以及二型模糊集的图像增强算法以改善图像对比度及清晰度。进一步基于SUSAN算法与形态学操作对图像边缘进行提取并利用基于最小二乘原理的多项式拟合迭代方法实现了对弹丸边缘的拟合和姿态的提取,最后通过实验验证该文方法的有效性。Electromagnetic launcher is a new type of electrical equipment,which relies on electromagnetic energy to push projectiles out of the chamber at a very fast speed.Aiming at the problem of ballistic attitude measurement of projectile,a method of attitude measurement based on high-speed camera technology and image enhancement and edge extraction post-processing technology is proposed.Because the projectile moves very fast,this paper uses high-speed camera technology to shoot the projectile in flight.At the same time,considering the limitations of camera hardware and shooting conditions,this paper proposes an image enhancement algorithm based on gamma transform and twotype fuzzy sets to improve image contrast and clarity.Further,this paper extracts image edge based on SUSAN algorithm and morphological operation,and uses iterative polynomial fitting method based on least square principle to extract projectile attitude.Finally,the credibility of this method is verified by experiments 。

关 键 词：电磁发射 弹丸姿态 二型模糊集 SUSAN算法 

分 类 号：TM930[电气工程—电力电子与电力传动]