卫星导航干扰源无人机定位观测路径规划方法  

Method for configuring observation point paths for UAV satellite navigationinterference source localization

作　　者：姚胤博 许睿[1] 徐悦 刘睿[2] 陈奇东[2] YAO Yinbo;XU Rui;XU Yue;LIU Rui;CHEN Qidong(Nanjing University of Aeronautics and Astronautics College of Automation Engineering,Nanjing 211106,China;China Research Institute of Radiowave Propagation,Qingdao 266107,China)

机构地区：[1]南京航空航天大学自动化学院,南京211106 [2]中国电波传播研究所,山东青岛266107

出　　处：《全球定位系统》2024年第6期72-83,共12页Gnss World of China

基　　金：国家自然科学基金资助项目(42174045);国家自然科学基金资助项目(41874012)。

摘　　要：本文面向单无人机干扰源搜寻系统中观测点配置需求,针对干扰源位置未知、测角设备存在盲区以及精度因子(dilution of precision,DOP)计算复杂问题,比较了不同DOP与误差分布的吻合性,提出合适的观测点配置方法辅助完成干扰源搜寻的工作.交叉定位中观测点与干扰源的相对分布对定位结果存在影响,因此引入DOP来描述分布的优劣.将合适的DOP作为规划指标,提出定步长方法、不定步方法、均匀方法提供监测观测点配置,对不同初始点分布时各方法的配置效果做出比较.并针对上述3种方法的缺陷提出改进的配置算法,均通过仿真实验进行验证.所提出的改进配置方法符合单无人机监测过程中顺序增加观测点的实际情况,即使在初始角度分布极差时也可达到与理想精度较为接近的精度,可满足监测定位工作的需求.This paper addresses the optimization of observation point configuration in a single UAV interference source search system,focusing on unknown interference source positions,goniometric equipment blind spots,and complex calculations of dilution of precision.It compares various dilution of precision with error distribution and proposes a method to enhance the search process.By using dilution of precision to evaluate distribution effectiveness,the paper presents three methods:fixed-step,variable-step,and uniform.These methods are compared under different initial distributions.Based on the shortcomings of the three methods above,an improved algorithm is proposed and validated through simulations.This algorithm supports the sequential addition of observation points,achieving near-ideal accuracy even with poor initial angle distributions,thereby meeting monitoring and localization requirements.

关 键 词：干扰源定位 精度因子(DOP) 路径规划 到达角方向定位 观测点配置 

分 类 号：P228.4[天文地球—大地测量学与测量工程]