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As precision instrument and equipment, the Inertial Navigation System (INS) not only shall has high accuracy index, but also possess high working reliability. Commonly, there are two methods to improve reliability of the INS, one is to increase the reliability of single device and reduce the rate of occurrence of failures (ROCOF). The second is to adopt the concept of tolerance design, by adding additional hardware resources and algorithm in the system. If in case one component in the system fails, it could be tested and the fault can be reconfigured through redundant components and algorithms, and reach the purpose of absorbing or isolating fault. Restricted by manufacturing technology, there is limited space to guarantee the reliability of INS by improving the reliability of single component. Many studies show that redundant technique has apparent effects for improving reliability of system.
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Li, Chaobing, Zijun Ren. 2014. Research on Configuration and Fault Reconfiguration Technology of Five Redundant Strapdown Inertial Group. Integration of Mechanics and Electrics 20 (2): 28–30, 78.
Chen, Jie, Hongyue Zhang, and Guangque Yi. 1997. Configuration Structure of Sensors and Optimization of Parity Vector in Redundancy Sensor System. Chinese Journal of Aeronautics 11 (3): 175–182.
Wang, Yinan, Kang Chen, Jie Yan. 2014. Design Method of Fault Detection Threshold of Three Strapdown Inertial Group Redundant System. Journal of Solid Rocket Technology 37 (4): 458–462.
Zhang, Lingxia, Ming Chen, and Cuiping Liu. 2005. Equivalence Between Optimal Parity Vector Method and Generalized Likelihood Ratio Test for Fault Diagnosis of Redundant Sensor. Journal of Northwestern Polytechnical University 23 (2): 266–270.
Liu, Shahong. 2012. Research on Multi-sensor Redundant Technology of Strapdown Inertial Navigation System. Journal of Harbin Institute of Technology.
Pan, Hongfei, Liqun Yuan, and Shangyun Ren. 2003. Research on Redundant Configuration of Strapdown Inertial Navigation Gyroscope. Winged Missiles Journal 2: 52–56.
Zhang, Zhixin, and Feng Zhang. 2008. Fault Detection of Strapdown Inertial Navigation System Based on Fault Tree and Singular Value Decomposition. Journal of Chinese Inertial Technology 16 (3): 359–363.
- Redundant Fault Tolerance and Failure Reconfiguration Technology of Inertial Devices
- Springer Singapore
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