scholarly journals Positioning Accuracy Evaluation for the Collaborative Automation of Mining Fleet With the Support of Memory Cutting Technology

IEEE Access ◽  
2016 ◽  
Vol 4 ◽  
pp. 5764-5775 ◽  
Author(s):  
Chengming Luo ◽  
Xinnan Fan ◽  
Jianjun Ni ◽  
Hai Yang ◽  
Xuewu Zhang ◽  
...  
Keyword(s):  
Accuracy Evaluation ◽  
Positioning Accuracy ◽  
Memory Cutting

Satellite availability and point positioning accuracy evaluation on a global scale for integration of GPS, GLONASS, BeiDou and Galileo

2019 ◽  
Vol 63 (9) ◽  
pp. 2696-2710 ◽  
Author(s):  
Lin Pan ◽  
Xiaohong Zhang ◽  
Xingxing Li ◽  
Xin Li ◽  
Cuixian Lu ◽  
...  
Keyword(s):  
Global Scale ◽  
Accuracy Evaluation ◽  
Positioning Accuracy ◽  
Point Positioning

Time-SEP Comprehensive Assessment of Methods for Calculating Positioning Accuracy of Navigation Systems

2013 ◽  
Vol 765-767 ◽  
pp. 2026-2030 ◽  
Author(s):  
Rui Jiang ◽  
Yan Yong Wang ◽  
Gong Liu Yang ◽  
Yong Miao Wang
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Statistical Testing ◽  
Accuracy Evaluation ◽  
Maximum Relative Error ◽  
Navigation Systems ◽  
Initial Value ◽  
Positioning Accuracy ◽  
True Value ◽  
Navigation Equipment

Based on 2 statistical testing schemes, the accuracy evaluation method of Time-SEP was proposed; 3 sphere error probability (SEP) methods were derivate and concluded. Simulation and experimental verification show that: Time-SEP method for navigation equipment positioning accuracy can give a relatively comprehensive evaluation; the scheme is feasible, compatible with the traditional calculation method of parameters and can fully utilize the single test data, test validation simple. 3 algorithms can all be used to calculate SEP, the maximum relative error is less than 5%; the χ2 distribution approximation somewhat conservative is recommended; and MLE values can be used as the initial value of integral operation, to reduce the number of integral operation, access to the true value rapidly.

scholarly journals Positioning Accuracy Evaluation of Radio Emission Sources Using Time Difference of Arrival and Angle of Arrival Methods. Part 2. 2D-Simulation

2019 ◽  
Vol 5 (4) ◽  
pp. 65-78 ◽  
Author(s):  
G. Fokin ◽  
V. Lazarev
Keyword(s):  
Adaptive Beamforming ◽  
Radio Networks ◽  
Accuracy Evaluation ◽  
Angle Of Arrival ◽  
Radio Communication ◽  
Positioning Accuracy ◽  
Radio Stations ◽  
2D Simulation ◽  
Dense Distribution ◽  
The Difference

This article presents the development of a generalized mathematical model for estimating the limits of positioning accuracy, which was studied in part 1, when determining the radio source location using the difference-range and goniometric methods for particular scenarios on the plane. The results of this study were implemented in 2D models, which is a convenient tool for establishing the positioning accuracy limits and can it be practically used to substantiate the topologies of station placement in modern and advanced radio networks for solving radio communication, radar, and radio navigation problems, including adaptive beamforming for establishing and maintaining communications. Using private scenarios with three radio stations as an example, it is shown that for positioning of neighboring devices under conditions of their ultra dense distribution on the plane during the cooperation of the minimum required receivers number, the goniometer method is preferable.

Configuration of 3D Indoor Positioning System Based on Bluetooth Beacons

2021 ◽  
Vol 27 (1) ◽  
pp. 32-40
Author(s):  
V. M. Grinyak ◽  
Keyword(s):  
Measurement Errors ◽  
Theoretical Calculations ◽  
Tracking System ◽  
Linear Equations ◽  
Estimation Procedure ◽  
Accuracy Evaluation ◽  
Algebraic Equations ◽  
Positioning Accuracy ◽  
Model Interpretation ◽  
Linear Algebraic Equations

This paper devoted to research of indoors navigation problems under poor or insufficient quality of satellite navigational data environment. The problem of object positioning in 3D space by Bluetooth devices located indoors forming a multi-position tracking system is considered in this research. Emphasized that in order to succeed for such system it is required to pre-estimate distinctive accuracy. The proposed model interpretation of the positioning problem as the system of linear equations. The classic model interpretation for method of least squares is used for resolution. General problem of linearization around reference resolution is the locality of its features. There are three concepts of problems solvability, such as fundamental solvability (observability), solvability in conditions of instrumental measurement errors and solvability under conditions of finite accuracy of computation on a computer. The first aspect of solvability is interpreted by the completeness of the rank of the corresponding system of linear algebraic equations, the second and third ones represents by the conditionality of the problem and the convergence of the iterative estimation procedure. The conducted experiments show that for the positioning problem the attributes of the linearized model are accurate enough to represent the original nonlinear problem. Such interpretation allows to build theoretical accuracy estimation priors for object coordinates evaluations and to identify the areas with insufficient positioning accuracy. In this paper there are results of expected accuracy evaluation for various system patterns with full-scale experiments proving the theoretical calculations. Experiments for problems with using SKYLAB Beacon VG01 Bluetooth transmitters and smartphone HUAWEI WAS-LX1 are presented and confirmed that math model with linear approximation defined by authors is usable for solving indoors navigation problems using Bluetooth signal. So, for good enough quantity and appropriate location of the tracks the achievable positioning accuracy could be as good as 0.2—0.3 meters for all three coordinates. Such accuracy allows to navigate small hovering objects such as drones. In general, it looks promising to use Bluetooth trackers for solving positioning problems for indoors environments.

Comprehensive TCEP Assessment of Methods for Calculating MUAV Navigation Position Accuracy Based on Visual Measurement

2013 ◽  
Vol 765-767 ◽  
pp. 2224-2228 ◽  
Author(s):  
Yan Yong Wang ◽  
Gong Liu Yang ◽  
Xing Rong Jia ◽  
Yong Miao Wang
Keyword(s):  
Navigation System ◽  
Evaluation Method ◽  
Accuracy Assessment ◽  
Visual Navigation ◽  
Accuracy Evaluation ◽  
Single Trial ◽  
Positioning Accuracy ◽  
Visual Measurement ◽  
Position Accuracy ◽  
Relationship Of

in order to satisfy the positioning accuracy identification requirement of MUAV navigation system, the characteristics of visual navigation were analyzed, the existing navigation system accuracy assessment methods were summarized and the conversion relationship of each index were deduced. According to the Ethridge statistical algorithm for calculating circular error probability (CEP), navigation and positioning accuracy assessment scheme were designed. Finally, the time-CEP(TCEP) accuracy evaluation method based on visual measurement was put forward, which were verified by simulation using four group actual INS data .The results show that: the scheme is feasible, convenient and practical; the method can relatively comprehensive evaluate the positioning accuracy of navigation system and can make full use of the single trial data.

scholarly journals Positioning Accuracy Evaluation of Radio Emission Sources Using Time Difference of Arrival and Angle of Arrival Methods. Part 3. 3D-Simulation

2020 ◽  
Vol 6 (2) ◽  
pp. 87-102
Author(s):  
G. Fokin ◽  
V. Lazarev
Keyword(s):  
Radio Emission ◽  
Qualitative Analysis ◽  
Radio Networks ◽  
Emission Sources ◽  
Accuracy Evaluation ◽  
Angle Of Arrival ◽  
Time Difference Of Arrival ◽  
Positioning Accuracy ◽  
Radiation Sources ◽  
Spherical Deviation

This work completes a series of studies evaluating positioning accuracy of radiation sources using the differential-range and/or goniometric method for the spatial scenario. A complex of models and methods is proposed for estimating the limits of positioning accuracy by the metric of the scattering ellipsoid of the lower Cramer – Rao boundary and circular spherical deviation in 3D. Based on the developed tools, a quantitative and qualitative analysis of positioning scenarios in superdense 5G radio networks was performed. The assessments made it possible to verify the requirements of 3GPP specifications for the accuracy and reliability of geolocation applications and services in the promising 5G ecosystem.

Comparative Analysis of Beidou Single and Dual Frequency Positioning Accuracy Evaluation

2021 ◽  
pp. 643-652
Author(s):  
Lei Chen ◽  
Hongliang Cai ◽  
Ling Pei ◽  
Yinan Meng ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Accuracy Evaluation ◽  
Dual Frequency ◽  
Positioning Accuracy
Sign in / Sign up

Export Citation Format

Share Document