PPP integrity monitoring algorithm for general-purpose navigation applications

被引：0
|
作者：
Zhang J. [1 ]
Zhao L. [1 ]
Yang F. [1 ]
Sun Z. [1 ]
Li L. [1 ]
机构：
[1] College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2023年 / 44卷 / 13期
基金：
中国国家自然科学基金;
关键词：
general-purpose navigation application; integrity; precise point positioning; threat model; ublox receiver;
D O I：
10.7527/S1000-6893.2022.27904
中图分类号：
学科分类号：
摘要：
High precision and high reliability positioning for general-purpose mass navigation applications has become a research hotspot. Integrity monitoring of Precise Point Positioning (PPP) can provide tightly integrity guaranteed absolute position error bounds for safety-critical applications. However, due to the observation quality of low-cost receivers and the effects of local occlusion in the general-purpose navigation application environment, hazard misleading information will challenge the reliability of PPP and reduce the availability of integrity monitoring. In this paper, a solution separation-based integrity monitoring algorithm is proposed based on a single and dual frequency undifferenced and uncombined PPP model. By establishing a threat model for general-purpose navigation application scenarios to suppress dangerous misleading information. Meanwhile, observation data are used to improve satellite geometric distribution, so as to improve the availability of integrity monitoring. Finally, the static experiment based on low-cost ublox receiver and dynamic experiment under local occlusion environments are designed. The results show that the proposed algorithm can produce adequate protection level, which can form the tightly guaranteed position error bounds. Moreover, the proposed algorithm can effectively suppress misleading information in the dynamic local occlusion environment, and has higher availability. © 2023 AAAS Press of Chinese Society of Aeronautics and Astronautics. All rights reserved.
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共 25 条
  • [1] YANG F X, ZHAO L, LI L, Et al., Performance evaluation of kinematic BDS/GNSS real-time precise point positioning for maritime positioning[J], Journal of Navigation, 72, 1, pp. 34-52, (2019)
  • [2] WEINBACH U, BRANDL M, CHEN X M, Et al., Integrity of the Trimble@CenterPoint RTX correction service[C], Proceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation （ION GNSS+ 2018）, pp. 1902-1909, (2018)
  • [3] DU Y J, WANG J L, RIZOS C, Et al., Vulnerabilities and integrity of precise point positioning for intelligent transport systems：Overview and analysis[J], Satellite Navigation, 2, 1, (2021)
  • [4] LI L, WANG H, JIA C, Et al., Integrity and continuity allocation for the RAIM with multiple constellations[J], GPS Solutions, 21, 4, pp. 1503-1513, (2017)
  • [5] INNAC A, GAGLIONE S, TROISI S, Et al., A proposed fault detection and exclusion method applied to multi-GNSS single-frequency PPP[C]∥ 2018 European Navigation Conference （ENC）, pp. 129-139, (2018)
  • [6] GUNNING K, BLANCH J, WALTER T, Et al., Design and evaluation of integrity algorithms for PPP in kinematic applications[C], Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation（ION GNSS+2018）, pp. 1910-1939, (2018)
  • [7] BLANCH J, GUNNING K, WALTER T, Et al., Reducing computational load in solution separation for Kalman filters and an application to PPP integrity[C], The International Technical Meeting of the The Institute of Navigation, pp. 720-729, (2019)
  • [8] BLANCH J, WALTER T, NORMAN L, Et al., Solution separation-based FD to mitigate the effects of local threats on PPP integrity[C], 2020 IEEE/ION Position， Location and Navigation Symposium （PLANS）, pp. 1085-1092, (2020)
  • [9] ZHANG J, ZHAO L, YANG F X，, Et al., Integrity monitoring for undifferenced and uncombined PPP under local environmental conditions[J], Measurement Science and Technology, 33, 6, (2022)
  • [10] CAI C S，, LIU Z Z，, LUO X M., Single-frequency ionosphere-free precise point positioning using combined GPS and GLONASS observations[J], Journal of Navigation, 66, 3, pp. 417-434, (2013)
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