基于递推加权最小二乘法的寻北抗干扰算法.pdf

第卷第期弹箭与制导学报
35 1 Vol. 35 No. 1
年月
2015 2 Journal of Projectiles, Rockets, Missiles and Guidance Feb 2015
DOI:10. 15892 / j. cnki. djzdxb. 2015. 01. 038
基于递推加权最小二乘法的寻北抗干扰算法∗
赵智姝, 魏东, 李映红
海军航空兵学院辽宁葫芦岛
( , 125000)
摘要:针对定向设备寻北过程中易受阵风人员走动等随机干扰影响降低寻北精度的问题提出了基于递推
、,
加权最小二乘估计的定向设备寻北抗干扰算法该算法以定向设备惯性敏感器输出数据为观测量实时辨识
。,
数据的有效性和精度并计算加权系数通过递推算法进行数据滤波提高了动态条件下惯性器件输出测量数
, , ,
据的估计精度试验结果表明该算法能够确保定向设备在级阵风发动机和载车取力发电干扰条件下的
。, 5 、
寻北精度
。
关键词:定向设备寻北递推加权最小二乘抗干扰
; ; ;
中图分类号:TN967. 1 文献标志码:A
North-seeking of Interference Suppression Based on
Recursive Weighted Least Squares
ZHAO Zhishu, WEI Dong, LI Yinghong
(Navy Fly of Academy, Liaoning Huludao 125000, China)
Abstract
: Since directional system is sensitive to random interference, gust or libration by people walk, for example, the anti-interference
approach based on the recursive weighted least squares was proposed. The approach takes inertial unit output as observation variable, and
effectiveness and precision of the data were identified in real-time. According to the result, the arithmetic makes use of the data with weigh-
ted coefficient. The approach boosts filter precision of the inertial units under random sway disturbance. The test results show that the algo-
rithm is efficiency for north-seeking equipment The algorithm can ensure that the north-seeking accuracy of directional equipment at