Abstract
With the development of autonomous driving and UAV technology, users put forward higher demands for the integrity of GNSS positioning services in complex urban environments. Receiver Autonomous Integrity Monitoring (RAIM) is an essential means to ensure the integrity of location service. The conventional RAIM algorithm uses redundant observations for fault detection, availability judgment, and fault identification. However, in complex urban scenarios, users are faced with problems such as the reduction of visible satellites and the deterioration of satellite geometry distribution, which restrict the availability of user integrity monitoring services. In order to improve the availability of integrity services in complex urban environments, this paper proposes an integrity monitoring method based on GNSS/ Attitude and Heading Reference System (AHRS) information fusion. The attitude information provided by AHRS can improve the model strength, effectively reduce the requirement of RAIM algorithm on the number of visible satellites, and improve the availability of RAIM algorithm in complex urban environments. Compared with the traditional RAIM algorithm, the proposed method enhances the algorithm availability by about 29.8%.
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References
Li, L., Shi, H., Jia, C., Cheng, J., Li, H., Zhao, L.: Position-domain integrity risk-based ambiguity validation for the integer bootstrap estimator. GPS Solut. 22(2), 1–11 (2018). https://doi.org/10.1007/s10291-018-0703-4
Hein, G.W.: Status, perspectives and trends of satellite navigation. Satell. Navig. 1(1), 1–12 (2020). https://doi.org/10.1186/s43020-020-00023-x
Dan, C., Bing, C., Hao, F., et al.: Research on BDS RAIM algorithm based on improved RANSAC algorithm. In: Proceedings of the 12th China Satellite Navigation Conference, pp. 1–7 (2021)
Lou, S., Xin, J., Hong, S., Li, J., et al.: Research on receiver autonomous integrity monitoring. Navig. Positioning Timing 1(01), 40–44 (2014)
Zhao, L., Li, N., Li, L., et al.: Real-time GNSS-based attitude determination in the measurement domain. Sensors 17(2), 296–309 (2017)
Li, N., Zhao, L., Li, L., et al.: Integrity monitoring of high accuracy GNSS-based attitude determination. GPS Solut. 22(4), 120 (2018)
Van Graas, F.: In-flight demonstration of hybrid GPS/Loran RAIM. In: Proceedings of The Institute of Navigation National Technical Meeting, AZ (1991). 199219920034019
Lee, Y.C., O’Laughlin, D.G.: Performance analysis of a tightly coupled GPS/inertial system for two integrity monitoring methods. Navigation 47(3), 175–189 (2000)
Hao, R., Yang, B., Xing, M., et al.: Research on RAIM augmented with clock bias model. In: Proceedings of the 6th China Satellite Navigation Conference, pp. 1–5 (2015)
Wu, K., Ye, X., Xiao, W., et al.: An autonomous integrity monitoring method of integrated navigation based on multiple virtual observations. Chin. Space Sci. Technol. 41(03), 60–69 (2021). https://doi.org/10.16708/j.cnki.1000.758X.2021.0039
Milner, C.D., Ochieng, W.Y.: Weighted RAIM for APV: the ideal protection level. J. Navig. 64(1), 61–73 (2011). https://doi.org/10.1017/S0373463310000342
He, H.: Research on positioning algorithm for BDS/GPS combined system. Chongqing University of Posts and Telecommunications, Chongqin (2019)
Jan, S.-S., Chan, W., Walter, T.: MATLAB algorithm availability simulation tool. GPS Solut. 13(4), 327–332 (2009). https://doi.org/10.1007/s10291-009-0117-4
Acknowledgements
This research was jointly funded by the National Key Research and Development Program (No. 2021YFB3901300), the National Natural Science Foundation of China (Nos. 61773132, 61633008, 61803115, 62003109), the 145 High-tech Ship Innovation Project sponsored by the Chinese Ministry of Industry and Information Technology, the Heilongjiang Province Research Science Fund for Excellent Young Scholars (No. YQ2020F009), and the Fundamental Research Funds for Central Universities (Nos. 3072019CF0401, 3072020CFT0403).
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Ye, Q., Zhang, X., Guo, C., Li, R., Jiang, Z. (2022). Research on Integrity Monitoring of GNSS/AHRS Integrated Navigation. In: Yang, C., Xie, J. (eds) China Satellite Navigation Conference (CSNC 2022) Proceedings. CSNC 2022. Lecture Notes in Electrical Engineering, vol 909. Springer, Singapore. https://doi.org/10.1007/978-981-19-2580-1_14
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DOI: https://doi.org/10.1007/978-981-19-2580-1_14
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