Modified instrumental variable method for bearings-only target tracking

被引：0
|
作者：
Yu J. [1 ]
Wen J. [2 ]
Li C. [3 ]
Li Y. [1 ]
机构：
[1] College of Marine Science and Technology, Northwestern Polytechnical Univ., Xi'an
[2] School of Computer & Electrical Information, Guangxi Univ., Nanning
[3] School of Electronic Engineering, Xidian Univ., Xi'an
来源：
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2016年 / 43卷 / 01期
关键词：
Control theory; Instrumental variable; Pseudo-linear estimation; Target tracking;
D O I：
10.3969/j.issn.1001-2400.2016.01.030
中图分类号：
学科分类号：
摘要：
To overcome the biased estimation of the pseudo-linear algorithm in bearings-only target tracking, a modified instrumental variable algorithm is proposed. In the new algorithm, the current bearings-only estimation angle is acquired by polyfitting several previous bearings angles. Then the estimated angle is used as the instrumental variable to get the motion parameters by applying the least-square method. The algorithm can achieve the theoretical unbiased estimation. Simulation results illustrate that the new modified instrumental variable algorithm has a better convergence rate and estimation accuracy than the existing research and that it is more suitable for engineering practice. © 2016, Science Press. All right reserved.
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页码：167 / 172
页数：5
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