Results 71 to 80 of about 387 (165)

An Optimization Method for Indoor Pseudolites Anchor Layout Based on MG-MOPSO

Remote Sensing
To address the challenge of optimizing the layout of pseudolite anchor points in complex indoor environments with significant occlusions, this paper proposes a multi-objective particle swarm optimization algorithm (MG-MOPSO).
Xiaohu Liang, Shuguo Pan, Shitong Du, Baoguo Yu, Shuang Li   +4 more
doaj   +1 more source

Low orbit regional enhanced navigation constellation for BDS3 design based on Bayesian optimization algorithm

Geodesy and Geodynamics
The application of Low Earth Orbit (LEO) satellite navigation can enhance geometric structure, increase observations and contribute to navigation and positioning. To improve the performance of the navigation constellation in China, this study proposes an
Chunhua Jiang, Zhenyu Luo, Meiqian Guan, Huizhong Zhu   +3 more
doaj   +1 more source

Layout Optimization of Hybrid Pseudolite Systems Based on an Incremental GDOP Model

Aerospace
Global Navigation Satellite Systems (GNSSs) are widely used in many applications but can be out of use in some critical conditions. Hybrid pseudolite systems utilize ground and aero stations as pseudolites to provide positioning signals for users within ...
Zhaoyi Guo, Baoguo Li, Yifan Wu
doaj   +1 more source

GDOP and the CRB for Positioning Systems

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2017
LI, Wanchun, YUAN, Ting, WANG, Bin, TANG, Qiu, LI, Yingxiang, LIAO, Hongshu   +5 more
openaire   +1 more source

User Equivalent Range Error and Positioning Accuracy Analysis for ToA-Based Techniques Using PRS and SSB in 5G/6G NTN

IEEE Open Journal of the Communications Society
The integration of Non-Terrestrial Network (NTN) within the Fifth Generation (5G) and Sixth Generation (6G) ecosystem offers new opportunities for global Positioning, Navigation, and Timing (PNT) services, particularly in environments where Global ...
Idir Edjekouane, Alejandro Gonzalez-Garrido, Jorge Querol, Symeon Chatzinotas   +3 more
doaj   +1 more source

Formation Configuration Design for Low-Earth Orbit Regional Navigation Satellites

Guidance, Navigation and Control
In the event of a significant natural disaster or a local conflict, the demand for a regional satellite navigation becomes imperative. The navigation can provide accurate position information and navigation augmentation services for regional emergency ...
Jiaqi Fan, Wei Li, Qing Li
doaj   +1 more source

MIMU Optimal Redundant Structure and Signal Fusion Algorithm Based on a Non-Orthogonal MEMS Inertial Sensor Array. [PDF]

Micromachines (Basel), 2023
Xue L, Yang B, Wang X, Cai G, Shan B, Chang H.   +5 more
europepmc   +1 more source

Cooperative Tracking of Vessel Trajectory by Multi-Static Passive Stations Using an MC-RMPF. [PDF]

Sensors (Basel)
Liu B, Kong L, Wu P.
europepmc   +1 more source

Density clustering based fast and stable satellite selection for LEO navigation. [PDF]

Sci Rep
Lu Z, Zhang S, Wang Y, Xiong J, Zhao R.
europepmc   +1 more source

Research on a Method of Locating Civil Aviation Radio Interference Sources Based on Time Difference of Arrival and Frequency Difference of Arrival for Four Unmanned Aerial Vehicles. [PDF]

Sensors (Basel), 2023
Zhou C, Zhu X, Xiong R, Hu K, Ouyang F, Huang C, Huang T.   +6 more
europepmc   +1 more source