Results 11 to 20 of about 2,261,545 (240)
Reliable GPS Integer Ambiguity Resolution. [PDF]
To operate, guide and control vehicles in low visibility conditions, it is critical that the states of the vehicle are accurately estimated, which includes the three dimensional position, velocity, and attitude. This can be accomplished by GPS (Global Positioning System) aided encoder or GPS aided inertial approaches.
Chen, Anning
core +12 more sources
Precise Point Positioning Integer Ambiguity Resolution with Decoupled Clocks
Precise Point Positioning (PPP) integer ambiguity resolution has been a challenging topic during the past five years. So far, three PPP integer ambiguity resolution methods – the singledifference between satellites method, the decoupled clock model and the integer phase clock model – have been developed. By using integer ambiguity resolution in PPP, cm-
Shi, Junbo
openaire +3 more sources
Population fusion optimization algorithm for GNSS integer ambiguity resolution based on PSO and AFSA [PDF]
Carrier phase measurement plays a crucial role in achieving rapid and high-precision positioning within a global navigation satellite system (Global navigation satellite system, GNSS).
Yingqing GUO +5 more
doaj +2 more sources
In Global Navigation Satellite Systems (GNSS), high-precision position coordinates are typically determined by establishing a double-difference carrier phase observation model and resolving the integer ambiguities within it. Therefore, the ability to fix
Jiangchao Tian +4 more
doaj +2 more sources
Sequential Ambiguity Resolution Method for Poorly-Observed GNSS Data
Integer ambiguity resolution is required to obtain precise coordinates for the global navigation satellite system (GNSS). Poorly observed data cause unfixed integer ambiguity and reduce the coordinate accuracy.
Haiyang Li +3 more
doaj +1 more source
Indoor Carrier Phase Positioning Technology Based on OFDM System
Carrier phase measurement is a ranging technique that uses the receiver to determine the phase difference between the received signal and the transmitted signal. Carrier phase ranging has a high resolution; thus, it is an important research direction for
Zhenyu Zhang, Shaoli Kang, Xiang Zhang
doaj +1 more source
The real-time integer-ambiguity resolution of the carrier-phase observation is one of the most effective approaches to enhance the accuracy of real-time precise point positioning (PPP), kinematic precise orbit determination (KPOD), and reduced-dynamic ...
Zhiyu Wang +7 more
doaj +1 more source
Transformation of propositional calculus statements into integer and mixed integer programs: An approach towards automatic reformulation [PDF]
A systematic procedure for transforming a set of logical statements or logical conditions imposed on a model into an Integer Linear Progamming (ILP) formulation Mixed Integer Programming (MIP) formulation is presented. An ILP stated as a system of linear
Hadjiconstantinou, E
core +6 more sources
The Precise Point Positioning (PPP) with fast integer ambiguity resolution (PPP-RTK) is feasible only if the solution is augmented with precise ionospheric parameters.
Lewen Zhao +2 more
doaj +1 more source
High-precision indoor fast positioning algorithm based on carrier phase
In order to improve the positioning accuracy and the speed of position solution in indoor wireless environment, a high-precision indoor fast positioning algorithm based on carrier phase was proposed.By introducing the reference terminal, the influence of
Shaoshuai FAN +3 more
doaj +2 more sources

