传感技术学报2017，Vol.30Issue(12)：1869-1875,7.DOI:10.3969/j.issn.1004-1699.2017.12.015
一种基于地磁总场梯度的匹配定位算法
A matching Algorithm Based on the Gradient of the Total Geomagnetic
摘要
Abstract
The underwater vehicle geomagnetic navigation technology is a hot topic of research in recent years. In or-der to improve the matching precision of navigation and positioning,a geomagnetic matching positioning method of using the total geomagnetic gradient as characteristic is presented. By comparing the performance of the geomagnetic field map,analysising the total geomagnetic gradient as characteristic matching quantity advantage. This paper ex-pounds the principle and defects of the classical MSD( Mean Square Deviation) matching algorithm,and proposes an improved algorithm based on rotation transformation. The simulation results verify the superiority and feasibility of the total geomagnetic gradient matching;positioning accuracy of the improved algorithm is compared with the classi-cal MSD algorithm is improved by 26.57%,to prove the effectiveness of the improved algorithm.关键词
地磁导航/地磁匹配/地磁总场梯度/基准图/MSDKey words
geomagnetic navigation/geomagnetic matching/total geomagnetic gradient/reference map/MSD分类
交通工程引用本文复制引用
李鑫,程德福,周志坚..一种基于地磁总场梯度的匹配定位算法[J].传感技术学报,2017,30(12):1869-1875,7.基金项目
国家重大科研装备研制项目(ZDYZ2012-1-02) （ZDYZ2012-1-02）
国家自然科学基金项目(41304140) （41304140）
