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Observability of Inertial Navigation System

Observability of Inertial Navigation System
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摘要 To improve the observability of strapdown inertial navigation system and the effectiveness of Kalman filter in the navigation system, the method of estimating the observability is analyzed based on eigenvalues and eigenvectors which are proved to be availabe, on this basis two-position alignment technigue is applied. The simulation shows that two-position alignment really makes the system's observability change from being incomplete to being complete, and the test method based on eigenvalues and eigenvectors is available to determine the observability of every state vector. To improve the observability of strapdown inertial navigation system and the effectiveness of Kalman filter in the navigation system, the method of estimating the observability is analyzed based on eigenvalues and eigenvectors which are proved to be availabe, on this basis two-position alignment technigue is applied. The simulation shows that two-position alignment really makes the system's observability change from being incomplete to being complete, and the test method based on eigenvalues and eigenvectors is available to determine the observability of every state vector.
出处 《Journal of Beijing Institute of Technology》 EI CAS 2005年第3期269-272,共4页 北京理工大学学报(英文版)
关键词 OBSERVABILITY two-position alignment EIGENVALUES EIGENVECTOR observability two-position alignment eigenvalues eigenvector
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  • 1关肇直,陈翰馥执笔,中国科学院数学研究所控制理论研究室.线性控制系统的能控性和能观测性[M]科学出版社,1975.

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