火力与指挥控制2024，Vol.49Issue(8)：152-158,165,8.DOI:10.3969/j.issn.1002-0640.2024.08.020
一种自适应网格细化的卫星干扰源定位方法
Interference Source Positioning Method of Satellites Based on Adaptive Mesh Refinement
摘要
Abstract
Aiming at the problem of low positioning accuracy and high computational complexity with the direct positioning method with fixed grid resolution to position satellite navigation interference sources,a direct positioning method of adaptive mesh refinement is proposed.Firstly,the differential matching filter is used to obtain the rough estimate of TOA,the positioning area is narrowed,and the ini-tial interference source position is obtained by coarse estimation,and then the iterative mesh refinement is used to obtain the high-precision positioning result.Simulation results show that the positioning accu-racy of this method can be improved by 90％compared with the traditional two-step positioning under the condition of low signal-to-noise ratio;at 20 m grid resolution,the computational complexity is reduced by 24 times compared with the DPD positioning method.关键词
卫星导航系统/直接定位/自适应网格细化/干扰源定位/网格分辨率Key words
satellite navigation system/direct positioning/adaptive mesh refinement/interference source positioning/grid resolution分类
信息技术与安全科学引用本文复制引用
任洋,姚金杰,赵昶淳..一种自适应网格细化的卫星干扰源定位方法[J].火力与指挥控制,2024,49(8):152-158,165,8.基金项目
山西省重点研发计划基金资助项目(202102010101002) （202102010101002）
