海域重力/地磁场融合导航适配区分析  

Analysis of Matching Areas for Marine Gravity/Geomagnetic Fields Integrated Navigation

作　　者：王梦雅 翟振和[3,4] 李琦 武凛 刘石 鲍李峰 WANG Mengya;ZHAI Zhenhe;LI Qi;WU Lin;LIU Shi;BAO Lifeng(State Key Laboratory of Precision Geodesy,Innovation Academy for Precision Measurement Science and Technology,CAS,Wuhan 430077,China;University of Chinese Academy of Sciences,Beijing 100049,China;Xi’an Research Institute of Surveying and Mapping,Xi’an 710054,China;State key Laboratory of Spatial Datum,Xi’an 710054,China;Xi’an Division of Surveying and Mapping,Xi’an 710018,China)

机构地区：[1]中国科学院精密测量科学与技术创新研究院,精密大地测量与定位全国重点实验室,武汉430077 [2]中国科学院大学,北京100049 [3]西安测绘研究所,西安710054 [4]空间基准全国重点实验室,西安710054 [5]西安测绘总站,西安710018

出　　处：《航天技术与工程学报》2025年第2期89-101,共13页

基　　金：国家自然科学基金资助项目(42274116,42192535,42174102);海南省科技专项资助项目(ZDYF2024SHFZ086);武汉市自然科学基金资助项目(2024040701010065)。

摘　　要：卫星测量技术具有高效快捷大范围覆盖的优势,为水下无源匹配导航的重力/地磁基准图构建提供重要的基础数据支撑。为确保匹配导航的可靠性,导航适配区的选取非常关键。针对单一数据包含特征信息有限的问题,文章提出了基于纹理特征的重力/地磁融合导航适配区选取方法,提取纹理融合单一重力/地磁匹配定位结果,实现数据特征互补,更充分地利用区域特征信息。研究利用全球海洋重力/地磁模型,选取重力/地磁特征分布不同的海域进行匹配导航仿真试验,试验结果显示本文方法得到的适配区面积比单一数据有显著增加,且定位精度更优,具备良好的适用性和稳定性,为航线规划提供更多选择,为水下导航提供优质的先验条件。Satellite measurement technology with its efficient,fast,and large-scale coverage,providing crucial foundational data for the construction of gravity/geomagnetic reference maps for underwater passive matching navigation.The selection of navigation matching zones is crucial to ensuring the reliability of matching navigation.to address the issue of limited feature information contained in a single data,this article proposes a texture feature-based method for selecting gravity/geomagnetic integrated navigation matching areas,which extracts texture features to integrate single gravity/geomagnetic matching positioning results,achieves data feature complementarity,and more fully utilizes regional feature information.The study utilized a global ocean gravity/geomagnetic model to select sea areas with varying distributions of gravity and magnetic features for matching navigation simulation experiments.As expected,the proposed method resulted in a significant increase in the adaptation area compared to single data,with improved positioning accuracy and enhanced applicability and stability.This provides more choices for route planning and offers high-quality prior conditions for underwater navigation.

关 键 词：卫星测量技术 水下无源匹配导航 适配区选取 纹理提取 

分 类 号：P229.2[天文地球—大地测量学与测量工程]