| According to use all-weather traditional astronomical navigation in the atmosphere when the problem,this paper studies the traditional star star sensor star identification algorithm of celestial navigation,On the basis of traditional star sensor triangle matching algorithm,the improved triangle algorithm and feature graph matching method based on graph theory are studied.In order to meet the all-weather work target,introduces theories related to radio astronomy navigation,select the appropriate library for beacon mission requirements,and preliminary design of the radio detection system of signal characteristics and recognition algorithm of radio beacon,based on Star celestial navigation method on the use of artificial radio beacon astronomical constant attitude algorithm.In order to solve the problem of autonomous switching of astral/Astronomy,the formation of a combination of radio star/celestial navigation method;at the same time in order to improve the positioning accuracy of the existing inertial/Celestial Integrated Navigation,mathematical platform using high precision astronomical attitude correcting sins,get the level of attitude reference is relatively accurate,can more effectively improve the astronomical positioning accuracy,the simulation results can be found,the virtual level attitude reference inertial/Celestial Integrated Navigation Based on positioning accuracy compared with the traditional method can be increased by more than 20%.This paper studies the all-weather combination algorithm,make full use of the radio astronomy,star navigation information,suitable for broadening the field of celestial navigation,plays an important role in the spectral range,using virtual level attitude reference,can effectively improve the accuracy of inertial navigation,inertial navigation and celestial navigation information after two times,the degree of utilization more information,better navigation. |
PDF Full Text Request