Error Analyses for the Algorithms of the Static Fiber-optic Gyro North-finder Schemes
MAO Zhen-hua1,ZHOU Wen-qing1,LI Jian-shuang2,CHEN Ting1,HUANG Teng-chao3,ZHOU Yi-lan3
1.Zhejiang Province Institute of Metrology, Hangzhou, Zhejiang 310013, China
2. National Institute of Metrology, Beijing 100013, China
3.State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, Zhejiang 310027, China
Abstract：Based on the principle of static north finder scheme, error models of several north-finding algorithms were established, and the equations were accordingly deduced to calculate the error with the affection of every parameter in every north-finding algorithm. The result of verifying analysis shows that the four-position north-finding algorithm is less affected by the parameters, such as the latitude of the testing point, and has the higher precision and stability.
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2011, Vol. 32 
