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Article
Open AccessA hierarchical combination algorithm for real-time cycle slip detection and repair in low satellite elevation and high ionospheric activity conditions
To enhance the accuracy and robustness of cycle slip detection and repair for triple-frequency data while minimizing the adverse effects of low satellite elevation and high ionospheric activity, a hierarchical...
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Article
Open AccessApplication of a long short-term memory neural network algorithm fused with Kalman filter in UWB indoor positioning
Ultra-wideband technology has good anti-interference capabilities and development prospects in indoor positioning. Since ultra-wideband will be affected by random errors in indoor positioning, to exploit the a...
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Chapter and Conference Paper
Beidou+5G-Based Plug-In Data Platform to Enhance the Accuracy of Smart Terminal App Applications
Real-time high-precision positioning and navigation of smart terminals has a huge potential demand in the field of positioning, but for reasons of cost and power consumption, its low-cost global navigation sat...
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Article
Open AccessMulti-orbit lunar GNSS constellation design with distant retrograde orbit and Halo orbit combination
The Moon is the closest natural satellite to mankind, with valuable resources on it, and is an important base station for mankind to enter deep space. How to establish a reasonable lunar Global Navigation Sate...
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Article
Solution separation-based integrity monitoring for RTK positioning with faulty ambiguity detection and protection level
Due to the multipath and signal shading effects, there exist biases in the carrier phase measurements, which degrades the reliability of ambiguity resolution in real-time kinematic (RTK) positioning and, subse...
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Article
Open AccessImproved GNSS integer ambiguity resolution method based on the column oriented Cholesky decomposition
Because the traditional Cholesky decomposition algorithm still has some problems such as computational complexity and scattered structure among matrices when solving the GNSS ambiguity, it is the key problem ...
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Article
Nonlinear revised error aided feedback equalization in high-speed satellite communication
Aiming to the question of nonlinear interference which is caused by the high order signal modulation of satellite communications, and the question of obvious memory characteristics of the satellite channel, th...
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Chapter and Conference Paper
The GPS/INS Integrated Navigation Method Based on Adaptive SSR-SCKF Cubature Kalman Filter
There are many methods aiming at the nonlinear problem of GPS/INS integrated navigation, such as EKF and UKF, however, these methods have low positioning accuracy and instability. On the study of SCKF and nonl...
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Chapter and Conference Paper
Study on Multipath Effect of GEO Satellite in BeiDou Navigation Satellite System
For BeiDou navigation satellite system, multipath fading from geostationary Earth orbit (GEO) satellites constraints BeiDou receiver to provide a high-precision positioning service, which is not negligible. By...
