基于测向数据多层预处理和多项式拟合的单站无源定位算法  

Single Station Passive Location Algorithm Based on Multi-layer Pretreatment and Polynomial Fitting of Direction Finding Data

作　　者：赵悦[1,2] 尹俊平 姬利海[2] 王妙妙 ZHAO Yue;YIN Jun-Ping;Li-hai;WANG Miao-miao(Northeast Normal University,Changchun 130024;Beijing Institute of Applied Physics and ComputationalMathematics？ Beijing 100088;Beijing University of Technology,Beijing 100190)

机构地区：[1]东北师范大学，吉林 长春 130024 [2]北京应用物理与计算数学研究所，北京 100088 [3]北京工业大学，北京 100190

出　　处：《舰船电子对抗》2018年第2期1-6,36,共7页Shipboard Electronic Countermeasure

基　　金：国家自然科学基金项目;项目编号:U430103;11601150

摘　　要：单站无源定位具有隐蔽性好、作用距离远、对硬件要求低等优点,因此高精度的单站无源定位算法在电子对抗中具有重大意义。为了提高单站无源定位的定位精度,已有处理技巧包括对测向数据采取去除异常点、离群点等预处理方法以及线性拟合方法,这些方法在某种程度上可以降低异常值对定位精度的影响,但仍然有较大的提升空间。结合实际问题,提出了一种对测向数据进行多层预处理和多项式拟合的交叉定位算法,与原始数据直接定位相比,采用预处理和多项式拟合后的测向数据进行交叉定位,定位精度得到了很大提高。Single station passive location has the advantages of good concealment,long range and low hardware requirement,so high-precision single station passive location algorithm is of great significance in electronic countermeasure.In order to improve the positioning accuracy of single station passive location,there are some processing techniques about the direction finding data,such as the preprocessing method of removing the abnormal points and the linear fitting method.These methods can reduce the effect of outlier on positioning accuracy to some extent,however there is greater room for improvement.Combining with practical problem,this paper proposes a cross-location algorithm based on multi-layer pretreatment and polynomial fitting to direction finding data.Compared with the precision of direct location method using initial data,the precision of cross-location method using direction finding data after preprocessing and polynomial fitting has been greatly improved.

关 键 词：多层预处理 多项式拟合 几何精度 单站无源定位 

分 类 号：TN971[电子电信—信号与信息处理]