直升机平台背景磁干扰建模与求解  

Helicopter platform background magnetic interference modeling and solution

作　　者：赵建扬[1] 林春生[1] 贾文抖 翟国君[2] 

机构地区：[1]海军工程大学兵器工程系,湖北武汉430033 [2]海军海洋测绘研究所,天津300061

出　　处：《华中科技大学学报（自然科学版）》2016年第2期21-25,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(41374018;41476087);国家重大科研装备研制基金资助项目(ZDYZ2012-1)

摘　　要：分析直升机悬挂磁测吊舱反潜平台磁干扰产生机理,研究了直升机载体磁性和磁测吊舱轨迹计算方法,建立了平台背景磁干扰磁偶极子阵列模型,并给出了模型求解方法.通过实例计算和分析表明:所建模型产生的平台背景磁干扰数据在不同航向上随飞机不同机动而变化的规律与实际相符,证明该模型是正确可行的;另外,采用逐步回归法求解模型参数,效果要好于最小二乘法和奇异值分解法.对于固定型号的飞机平台,得到一组准确的背景磁干扰模型参数,进而掌握了该平台背景磁干扰特征,为下一步平台背景磁干扰补偿提供充分的数据支撑.The background magnetic interference mechanism of anti‐submarine helicopter hanging magnetic survey pod platform was analyzed ,and helicopter carrier magnetic and pod trajectory calcula‐tion method were studied .One magnetic dipole array model of helicopter platform background mag‐netic interference was established ,and the model solving method was given .The calculation and anal‐ysis results of an example show that the rules of the changing magnetic interference data generated from established model in this paper ,when helicopter flying in different course with different aircraft maneuvering ,are in conformity with the actual situation .So ,the model is correct .In addition ,the stepwise regression method is used to solve the model parameters ,and the effect is better than the least square method and singular value decomposition method .For one fixed type of aircraft platform , getting a set of accurate background magnetic interference model parameters is equivalent to master the interference characteristics of the platform ,providing sufficient data support for platform back‐ground magnetic interference compensation in the next step .

关 键 词：直升机反潜 磁干扰 建模与求解 磁测吊舱 逐步回归法 

分 类 号：U666.1[交通运输工程—船舶及航道工程]