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High-spin-rate roll angle measurement method based on GPS using single patch antenna

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Abstract

The Global Positioning System (GPS) signals-based roll angle measurement methods are key technologies for spinning vehicles with side-mounted single patch antenna. Most existing research focuses on attitude measurement at low spin rates, and it is difficult to achieve accurate roll angle measurement at a time-varying situation with high spin rates, and the attitude measurement errors are not modeled and analyzed. A multi-channel roll angle measurement method based on a third-order phase-locked loop is proposed to improve the attitude measurement accuracy and stability. The effects of phase-locked loop (PLL) tracking errors, errors induced by antenna gain, and antenna phase center offset errors are analyzed and verified by simulation. The intermediate frequency (IF) GPS signals received by a single patch antenna are sampled on a testbed to verify the roll angle measurement method. The experiment results show that the root-mean-square error (RMSE) of the roll angle measurement is 5° ± 1° at spin rates ranging from 50 to 200 r/s.

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Data availability

The data that support the findings of this study are available from the corresponding author upon request.

Notes

  1. L-3 Interstate Electronics Corporation to Provide GPS Receivers. http://www2.l-3com.com/iec/news/r_%20pr/031308-ATK.html.

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Acknowledgements

This research was founded by the National Natural Science Foundation of China, Grant Number 61973033. And we would like to thank the Beijing Institute of Technology Chongqing Innovation Center and the National Key Laboratory of Science and Technology on Electromechanical Dynamic Characteristics at the Beijing Institute of Technology for their support during the writing of this paper.

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WP performed the research and wrote the manuscript. QS gave helpful suggestions on analysis and result interpretation. ZD performed the research and provided guidance. XW and MW contributed to the data analysis.

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Correspondence to Zilong Deng.

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Pu, W., Shen, Q., Deng, Z. et al. High-spin-rate roll angle measurement method based on GPS using single patch antenna. GPS Solut 28, 81 (2024). https://doi.org/10.1007/s10291-024-01622-w

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  • DOI: https://doi.org/10.1007/s10291-024-01622-w

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