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Summarizes the technical principles of geomagnetic matching navigation, expounds the navigation solution process of MAGCOM, SITAN and ICCP three main matching navigation algorithms, and discusses the application status of geomagnetic navigation technology from the three geographical environments of satellite, air and underwater. It points out the research prospects of geomagnetic matching navigation and provides reference for the research and development of geomagnetic navigation technology.

Multi-component force sensor is a common force measurement instrument that can perceive all six force values and torque values in space. It is mainly used in aerospace, equipment manufacturing and other fields. At present, the calibration of multi-component force sensor is mainly carried out in professional measurement laboratory with special measuring equipment. In the field of measurement and control, the stress condition of multi-component force sensor is very complex, and the sensitivity obtained by calibration test often has certain deviation from the sensitivity of multi-component force sensor under actual load condition. This paper analyzes and tests the common problems of the multi-component force sensor in the actual measurement, control and calibration test. The test proves that the combined loading and loading order and loading position of the multi-component force sensor will affect its sensitivity output. It is necessary to pay attention to the related influence in the use of multi-component force sensor and design the calibration scheme according to the specific loading situation.