Research on the Application of TMR Digital Compass in Integrated Navigation System
ZHANG Songhao
CUI Min
ZHANG Peng
Abstract：In order to solve the problem of improving the comprehensive performance of common GNSS/INS integrated naviga-tion systems on the market,a sensor-based digital compass system is designed.The integrated navigation system is calibrated using the attitude information tested by the digital compass.This paper aims to improve the accuracy of the overall system and enhance the stability of the overall system.After a series of experiments,it is found that the navigation route after adding the digital compass to the system is closer to the reference route than before adding it,and the overall accuracy of the system is improved.In addition,the signal of the integrated navigation system with the added digital compass is more stable when passing through the tunnel than the in-tegrated navigation system without the added digital compass.It can be concluded that the developed digital compass system can greatly improve the accuracy and stability of the integrated navigation system.The developed digital compass system has extremely high engineering value in the field of integrated navigation.
Keywords：digital compasstunnel magnetoresistance(TMR)GNSS/INS integrated navigationaccuracystability
Publication Date：2025-08-20
Online Publishing Date：2025-12-12(First online date of this platform, not the publication date of the document)
Pages：6( 58-63 )