Experimental Validation of the D-optimal Redundant Configuration

Li Fu and Yan Zhang and Lingling Wang

Abstract:	In this paper, an experimental validation to prove the D-optimal redundant gyro configuration is proposed. The D-optimal redundant gyro configuration was presented using D-optimal criteria and real code genetic algorithm (RCGA) before. In order to validate the navigation performance at practice level, a material object of the Doptimal redundant gyro configuration is achieved using Solidworks software. To estimate navigation performance of the D-optimal redundant gyro configuration, an error model is analyzed. Then, the calibration procedure by rate test is presented. To estimate navigation performance of the D-optimal redundant gyro configuration under different environmental temperature conditions, thermal test is also raised. Moreover, in order to validate navigation performance of the D-optimal redundant gyro configuration comprehensively, a rate trajectory is simulated by single-axis turntable. It is shown that navigation performance of the D-optimal redundant gyro configuration is roughly equivalent to that of the dodecahedron redundant gyro configuration. Under different environmental temperature conditions, navigation performance of the D-optimal redundant gyro configuration is a little better than that of the dodecahedron redundant gyro configuration. By means of the rate trajectory given, it also can be achieved that navigation performance of the D-optimal redundant gyro configuration and the dodecahedron redundant gyro configuration is almost the same. However, on the basis of the equivalent navigation performance, the volume of the D-optimal redundant gyro configuration is only 52% of that of the dodecahedron redundant gyro configuration. The D-optimal redundant configuration design method proposed before can be proved to be efficient in designing redundant sensor configuration.
Published in:	Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2015) September 14 - 18, 2015 Tampa Convention Center Tampa, Florida
Pages:	131 - 136
Cite this article:	Fu, Li, Zhang, Yan, Wang, Lingling, "Experimental Validation of the D-optimal Redundant Configuration," Proceedings of the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2015), Tampa, Florida, September 2015, pp. 131-136.
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