%0 Journal Article
%A ZHANGFeizhou
%A CHEN Jia
%A GENG Jiazhou
%A CHENG Peng
%T Simulation Research on Matching Algorithmfor Underwater Gravity Difference Entropy Aided Inertial Navigation
%D 2010
%R
%J Acta Scientiarum Naturalium Universitatis Pekinensis
%P 136-140
%V 46
%N 1
%X The task modes of underwater gravity assistant navigation and design of system simulation algorithm are studied with gravity difference entropy of physical geography character. The basic principle of the algorithmis that the information entropy could be used in gravity assistant navigation for autonomous underwater vehicle(AUV) in navigation matching algorithm. The error of inertial navigation systemin AUV is corrected by means of the information difference between template gravity map and actual gravity map and the difference of gravity gradient maps, therefore the high precision navigation can be implemented in the condition of long time and covered operation. The character and development general situation of gravity assistant navigation are also inducted. On basis of gravity base research, the design idea and experiment method of passive navigation matching algorithm based on underwater gravity difference entropy are expatiated in the end.
%U http://xbna.pku.edu.cn/EN/abstract/article_1508.shtml