Results 31 to 40 of about 431 (152)
A CIPSO-FCM-Based RAIM Algorithm for the GPS/BDS Integrated Navigation System
IEEE Access, 2021 The receiver integrity monitoring of a satellite navigation system directly affects positioning accuracy and train safety. The GPS/BDS (Global Positioning System/BeiDou Navigation System) integrated navigation system can meet the requirements of RAIM ...
Miao Luo +3 more
doaj +1 more source
GPS‐SBAS‐Based Orbit Determination for Low Earth Orbiting Satellites
International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 A space‐based augmentation system (SBAS) provides real‐time GNSS correction signals via geostationary satellites for near‐ground GNSS users. To use the SBAS correction for low Earth orbit (LEO) satellites, the correction, especially the ionosphere correction, must be adjusted for the LEO altitude.
Mingyu Kim +2 more
wiley +1 more source
Journal of Advanced Transportation, Volume 2023, Issue 1, 2023., 2023 Civil aviation transportation equipment is more convenient and faster than other transportation tools and is an essential part of intelligent transportation. It is significant to study the reliability of positioning information and enhance traffic safety. Advanced receiver autonomous integrity monitoring (ARAIM) can provide vertical guidance during the
Ershen Wang +7 more
wiley +1 more source
Mitigating GNSS Multipath Effects Using XGBoost Integrated Classifier Based on Consistency Checks
International Journal of Antennas and Propagation, Volume 2022, Issue 1, 2022., 2022 Under the influence of urban building roads, especially interference from multipath effects, global navigation satellite system (GNSS) receiver‐related output signal distortion can affect the robustness of the positioning system and the final positioning accuracy.
Dengao Li +4 more
wiley +1 more source
Interference Mitigation Based on Low Complexity Subspace Tracking Method for Vehicle Positioning
Discrete Dynamics in Nature and Society, Volume 2022, Issue 1, 2022., 2022 Advanced driver assistance systems and automatic driving have drawn lots of attentions due to user’s multiapplication needs. Among different technologies, the integration of Inertial Navigation System (INS) and Global Navigation Satellite System (GNSS) is a key technique with the decreasing costs of Inertial Measurement Unit (IMU) and the increasing ...
Ping Zhang +3 more
wiley +1 more source
Performance assessment of GNSS diffraction models in urban areas
NAVIGATION, Volume 68, Issue 2, Page 369-389, Summer 2021., 2021 Abstract The GNSS performance is significantly degraded in urban canyons because of the signal interferences caused by buildings. Besides the multipath and non‐line‐of‐sight (NLOS) receptions, the diffraction effect frequently occurs in urban canyons, which will severely attenuate the signal strength when the satellite line‐of‐sight (LOS) transmitting ...
Guohao Zhang, Li‐Ta Hsu
wiley +1 more source
Calculation of Optimal Vertical Protection Level Based on Integrity Risk and Continuity Risk [PDF]
Jisuanji gongcheng, 2017 In order to reduce the integrity risks and continuity risks in the process of precision vertical guidance of aircraft,and make the Receiver Autonomous Integrity Monitoring(RAIM) algorithm provide the horizontal and vertical integrity for security,this ...
YANG Kai,GUO Chengjun
doaj +1 more source
GNSS spoofing detection through spatial processing
NAVIGATION, Volume 68, Issue 2, Page 243-258, Summer 2021., 2021 Abstract In this paper, we present an algorithmic framework for signal‐geometry‐based approaches of GNSS spoofing detection. We formulate a simple vs. simple hypothesis test independent of nuisance parameters that results in significantly reduced missed detection probability compared to prior approaches.
Fabian Rothmaier +3 more
wiley +1 more source
Study on GNSS‐R multi‐target detection and location method based on consistency checking
IET Radar, Sonar &Navigation, Volume 15, Issue 6, Page 605-617, June 2021., 2021 Abstract The use of GNSS reflected signals to carry out passive detection of space targets is an emerging technical field. Unlike the traditional GNSS‐R in large‐scale environments such as oceans, vegetation, ice and snow, it is required to identify different targets within the detection range, which is one of the biggest challenges.
Cheng Liu +7 more
wiley +1 more source
A long‐term broadcast ephemeris model for extended operation of GNSS satellites
NAVIGATION, Volume 68, Issue 1, Page 199-215, Spring 2021., 2021 Abstract GNSS positioning relies on orbit and clock information, which is predicted on the ground and transmitted by the individual satellites as part of their broadcast navigation message. For an increased autonomy of either the space or user segment, the capability to predict a GNSS satellite orbit over extended periods of up to two weeks is studied.
Oliver Montenbruck +2 more
wiley +1 more source