直升机平台背景磁干扰小信号模型求解与补偿  

Helicopter Platform Background Magnetic Interference Small Signal Model Solving and Compensation

作　　者：张宁[1] 赵建扬[1] 林春生[1] 贾文抖 

机构地区：[1]海军工程大学兵器工程系,湖北武汉430033

出　　处：《电子学报》2017年第1期83-88,共6页Acta Electronica Sinica

基　　金：国家重大科研装备研制项目(No.ZDYZ2012-1);湖北省自然科学基金(No.2015CFC865);海军工程大学科研专项基金(No.435517J4086)

摘　　要：针对直升机外挂磁测吊舱探测平台,分析了平台背景磁干扰产生机理,得出平台背景磁干扰主要由飞机载体磁干扰、吊舱摆动引起的磁干扰和航迹波动引起的磁干扰三大部分组成,建立了磁测吊舱轨迹计算模型和平台背景磁干扰小信号模型.结合平台运动特点,给出了小信号模型求解方法,通过仿真计算,对磁干扰小信号模型求解进行了验证.分析结果表明,采用小信号模型对直升机平台背景磁干扰进行求解和补偿是完全可以的,适应性很好,磁干扰补偿率可达90%.For helicopter external high precision magnetic survey pod detection platform,platform background magnetic interference m echanism is analyzed,and concluded that platform background m agnetic disturbance consists of the aircraft carrier m agnetic disturbance,fluctuating m agnetic interference caused by pod swing and the m agnetic disturbance caused by fluctuating track of platform. Magnetic survey pod trajectory calculation m odel and platform background m agnetic interference sm all signal m odel are established. And com bining with the characteristics of platform m otion,sm all signal m odel solving m ethod is given. Through sim ulation and calculation,the m agnetic interference sm all signal m odel is verified,and the analysis results showthat using the sm all signal m odel to solve and com pensate the m agnetic disturbance is com pletely possible,the adaptability is very good and m agnetic disturbance com pensation rate can reach m ore than 90%.

关 键 词：磁异常探测 小信号模型 磁测吊舱 磁干扰补偿 

分 类 号：TN965[电子电信—信号与信息处理]