Implementation of GPS High-Precision Positioning Post-Processing Technique

Optimization of Satellite Combination in Kinematic Positioning Mode with the Aid of Genetic AlgorithmThe basis of high precision relative positioning is the use of carrier phase measurements. Data differencing techniques are one of the keys to achieving high precision positioning results as they can significantly reduce a variety of errors or biases in the observations and models. Since GPS observations are usually contaminated by many errors such as the atmospheric biases, the receiver clock bias, the satellite clock bias, and so on, it is impossible to model all systematic errors in the functional model. Although the data differencing techniques are widely used for constructing the functional model, some un-modeled systematic biases still remain in the GPS observations following such differencing. Another key to achieving high precision positioning results is to fix the initial carrier phase ambiguities to their theoretical integer values. To obtain a high percentage of successful ambiguity-fixed rates, noisy GPS satellites have to be identified and removed from the data processing step. This paper introduces a new method using genetic algorithm (GA) to optimize the best combination of GPS satellites which yields the highest number of successful ambiguity-fixed solutions in kinematic positioning mode. The results indicate that the use of GA can produce higher number of ambiguity-fixed solutions than the standard data processing technique.

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Multi-GNSS Dynamic High Precision Positioning in Urban Environment

Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017) ◽

10.33012/2017.15197 ◽

2017 ◽

Cited By ~ 1

Author(s):

Javier M�guez ◽

Jos� V. Perello Gisbert ◽

J.A. Garcia-Molina ◽

Paolo Zoccarato ◽

Paolo Crosta ◽

...

Keyword(s):

Urban Environment ◽

High Precision ◽

Precision Positioning

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High-Precision Positioning of Galvano Scanners by Structural Design Using Node of Vibration Modes

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.131.275 ◽

2011 ◽

Vol 131 (3) ◽

pp. 275-282

Author(s):

Kenta Seki ◽

Hiroaki Matsuura ◽

Makoto Iwasaki ◽

Hiromu Hirai ◽

Soichi Tohyama

Keyword(s):

High Precision ◽

Structural Design ◽

Vibration Modes ◽

Precision Positioning

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The Main Results Of Developings Made By Kharkov University’s And the Ukrainian National Observatory’s Research Groups In the Field Of High-Precision Positioning, 2011-2012

Geodesy and Cartography ◽

10.22389/0016-7126-2012-38-50 ◽

2012 ◽

Vol 870 (13) ◽

pp. 38-50

Author(s):

A.A. Zhalilo ◽

◽

A.A. Zhelanov ◽

D.A. Shelkovenkov ◽

I.V. Ditskii ◽

...

Keyword(s):

High Precision ◽

Research Groups ◽

Precision Positioning

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Design, FPGA implementation and statistical analysis of a high-speed and low-area TRNG based on an AES s-box post-processing technique

ISA Transactions ◽

10.1016/j.isatra.2021.01.054 ◽

2021 ◽

Author(s):

Ali Murat Gari̇pcan ◽

Ebubekir Erdem

Keyword(s):

Statistical Analysis ◽

High Speed ◽

Processing Technique ◽

Fpga Implementation ◽

Post Processing ◽

Low Area

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Communications and High-Precision Positioning (CHP2): Secure Traffic and Resource Management Using Reinforcement Learning

2020 AIAA/IEEE 39th Digital Avionics Systems Conference (DASC) ◽

10.1109/dasc50938.2020.9256573 ◽

2020 ◽

Author(s):

Owen Ma ◽

Andrew Herschfelt ◽

Hanguang Yu ◽

Shunyao Wu ◽

Sharanya Srinivas ◽

...

Keyword(s):

Reinforcement Learning ◽

Resource Management ◽

High Precision ◽

Precision Positioning

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Design, Analysis and Test of a Hyperbolic Magnetic Field Voice Coil Actuator for Magnetic Levitation Fine Positioning Stage

Energies ◽

10.3390/en12101830 ◽

2019 ◽

Vol 12 (10) ◽

pp. 1830

Author(s):

Yiheng Zhou ◽

Baoquan Kou ◽

He Zhang ◽

Lu Zhang ◽

Likun Wang

Keyword(s):

Magnetic Field ◽

High Precision ◽

Magnetic Levitation ◽

Structural Parameters ◽

Industrial Applications ◽

Degree Of Freedom ◽

Force Density ◽

Precision Positioning ◽

Element Analysis ◽

Voice Coil Actuator

The multi-degree-of-freedom high-precision positioning system (MHPS) is one of the key technologies in many advanced industrial applications. In this paper, a novel hyperbolic magnetic field voice coil actuator using a rhombus magnet array (HMF-VCA) for MHPS is proposed. Benefiting from the especially designed rhombus magnet array, the proposed HMF-VCA has the advantage of excellent force uniformity, which makes it suitable for multi-degree-of-freedom high-precision positioning applications. First, the basic structure and operation principles of the HMF-VCA are presented. Second, the six-degree-of-freedom force and torque characteristic of the HMF-VCA is studied by three-dimensional finite element analysis (3-D FEA). Third, the influence of structural parameters on force density and force uniformity is investigated, which is conducive to the design and optimization of the HMF-VCA. Finally, a prototype is constructed, and the comparison between the HMF-VCA and conventional VCAs proves the advantage of the proposed topology.

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