一种地磁导航算法的硬件设计与实现  

Hardware design and implementation of a geomagnetic navigation algorithm

作　　者：黄俊珂 邵炼 邹璨 邹望辉 HUANG Junke;SHAO Lian;ZOU Can;ZOU Wanghui(School of Physics and Electronic Science,Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学物理与电子科学学院,长沙410114

出　　处：《集成电路与嵌入式系统》2025年第5期75-82,共8页Integrated Circuits and Embedded Systems

基　　金：湖南省教育厅科学研究项目(23A0260);湖南省科技厅重点领域研发计划(2023GK2036)。

摘　　要：讨论了一种基于插值匹配的高精度地磁导航算法,并完成了算法的硬件设计与实现。地磁导航模块依赖地磁场的空间分布特性进行定位,但传统算法在复杂环境下易受噪声和误差影响,导致定位精度不足。为此,本文结合插值匹配算法,通过构建精细化的地磁强度分布模型实现对地磁场信息的高效处理和精确匹配,并设计了低功耗、高性能的硬件架构以实现算法快速运行。该设计显著提升了定位计算的速度与能效比,同时在复杂环境下保持了较高的定位精度,提供了一种高效的地磁导航解决方案,可广泛应用于现代导航设备。This paper discusses a high-precision geomagnetic navigation algorithm based on interpolation matching and completes the hardware design and implementation of the algorithm.The geomagnetic navigation module relies on the spatial distribution characteristics of the geomagnetic field for positioning,but traditional algorithms are susceptible to noise and errors in complex environments,leading to insufficient positioning accuracy.To address this,the paper combines an interpolation matching algorithm to construct a refined geomagnetic intensity distribution model,enabling efficient processing and precise matching of geomagnetic field information.Additionally,a low-power,high-performance hardware architecture is designed to facilitate rapid execution of the algorithm.This design significantly improves the speed and energy efficiency of positioning calculations while maintaining high positioning accuracy in complex environments.It can be widely applied in modern navigation devices,providing an efficient geomagnetic navigation solution.

关 键 词：硬件模块 地磁导航 插值匹配算法 地磁强度分布模型 FPGA 

分 类 号：TN495[电子电信—微电子学与固体电子学]