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| 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 |
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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 
