Key methods and research progress of underwater gravity matching aided navigation
Aiming at the problem that the existing navigation means can not meet the high precision and safe navigation of the carrier underwater,the paper studied and analyzed the key technologies of underwater gravity matching aided navigation:the development status of underwater gravity matching aided navigation and underwater gravity information acquisition means at home and abroad were summarized;then,starting from the technical points of underwater gravity matching aided navigation,the key problems and research directions of underwater gravity map constructing,matching suitability analysis and matching algorithm were discussed;finally,the future development trend of underwater gravity matching aided navigation was foreseen by combining the needs related to underwater gravity map building and matching.
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