Performance Comparison According to Self-Calibration Measurement Models with Nonorthogonal Angle Between Dual-Axis Gimbals of Rotational Inertial Navigation System

Jaehyuck Cha, Chan Gook Park, Seong Yun Cho, Minsu Jo, and Chanju Park

Abstract: This paper deals with the self-calibration methods for the nonorthogonal angle between dual-axis gimbals of the rotational inertial navigation system (RINS), which should be conducted before the full-scale operation and will significantly impact the subsequent navigation performance. Since the nonorthogonality error is an influential error factor in the operation of RINS, several studies have been conducted to calibrate it. In particular, in addition to the accuracy, the rapidity and computational conciseness are essential indicators of the superiority of a new method. Nevertheless, there has not been much research on the performance comparison between self-calibration methods according to the measurement model. Therefore, in this paper, we present a self-calibration method that improves the measurement model of existing self-calibration method and analyze tits performance by conducting observability analysis for different measurement models.
Published in: Proceedings of the ION 2024 Pacific PNT Meeting
April 15 - 18, 2024
Hilton Waikiki Beach
Honolulu, Hawaii
Pages: 616 - 624
Cite this article: Cha, Jaehyuck, Park, Chan Gook, Cho, Seong Yun, Jo, Minsu, Park, Chanju, "Performance Comparison According to Self-Calibration Measurement Models with Nonorthogonal Angle Between Dual-Axis Gimbals of Rotational Inertial Navigation System," Proceedings of the ION 2024 Pacific PNT Meeting, Honolulu, Hawaii, April 2024, pp. 616-624. https://doi.org/10.33012/2024.19620
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