MGEKF可修正增益矩阵的研究  

Research of the MGEKF modified gain matrix

作　　者：马宝宏[1] 林强[2] 

机构地区：[1]中国航天科工集团8511研究所,江苏南京210007 [2]南京工程学院,江苏南京211167

出　　处：《航天电子对抗》2010年第3期22-26,共5页Aerospace Electronic Warfare

摘　　要：MGEKF就是基于EKF衍生出的一种修正算法。MGEKF算法是基于非线性函数是可修正的特性,详细介绍非线性函数的可修正增益矩阵的定义和推导方法,通过实例对方位角的可修正增益矩阵进行推导,并归纳出工程上计算修正增益函数的方法和步骤,最后利用Maltab仿真了MGEKF和EKF的滤波过程,证实了MGEKF算法的优越性。The MGEKF algorithm is derived from the EKF algorithm. It is on the base of the modified characteristic of the nonlinear function. The definition of the modified gain matrix and guided method are introduced. Through deriving an example of the modified gain matrix for angle measurements, a method and steps of calculating modified gain matrix are given. Finally it is confirmed by Matlab imitation that the modified gain extended Kalman filter performs better than the standard Kalman filter.

关 键 词：侦察定位 MGEKF 可修正增益矩阵 伪测量方程 

分 类 号：TN971[电子电信—信号与信息处理]