A Review of Autonomous Navigation Technology Assisted by Geomagnetic Information
Navigation accuracy improvement is of great significance for the design of aircraft.There are many early developed attitude sensors,but over time,they gradually reveal some insurmountable shortcomings.Geomagnetic navigation,as an autonomous navigation method,has enormous potential for application in various fields.Aiming at the overall situation of geomagnetic assisted navigation,the development status of key technologies such as online and offline calibration of magnetometers and combined attitude estimation in geomagnetic navigation are systematically analyzed,the disadvantages and limitations of the existing geomagnetic information assisted navigation methods are discussed,and the direction for further development in the future is also pointed out.
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