Results 1 to 10 of about 74 (29)
A Data-Driven Factor Graph Model for Anchor-Based Positioning [PDF]
Sensors, 2023 This work presents a data-driven factor graph (FG) model designed to perform anchor-based positioning. The system makes use of the FG to compute the target position, given the distance measurements to the anchor node that know its own position.The aim ...
Ana Moragrega +1 more
exaly +6 more sources
Weighted Geometric Dilution of Precision Calculations with Matrix Multiplication [PDF]
Sensors, 2015 To enhance the performance of location estimation in wireless positioning systems, the geometric dilution of precision (GDOP) is widely used as a criterion for selecting measurement units.
Chien-Sheng Chen
exaly +6 more sources
Calculation of Weighted Geometric Dilution of Precision [PDF]
Journal of Applied Mathematics, 2013 To achieve high accuracy in wireless positioning systems, both accurate measurements and good geometric relationship between the mobile device and the measurement units are required.
Chien-Sheng Chen +3 more
doaj +4 more sources
A New Criterion Construction and Verification for GNSS Satellite Selection Based on Near-Real-Time Accuracy [PDF]
SensorsGlobal Navigation Satellite Systems (GNSS) have undergone more than half a century of development and construction, with more than a hundred navigation satellites currently providing precise and reliable positioning, navigation, and timing (PNT) services
Yibin Yao, Yao Yibin
exaly +5 more sources
An Evaluation of Optimization Algorithms for the Optimal Selection of GNSS Satellite Subsets
Remote SensingContinuous advancements in GNSS systems have led, apart from the broadly used GPS, to the development of other satellite systems (Galileo, BeiDou, GLONASS), which have significantly increased the number of available satellites for GNSS positioning ...
Rasa Remenyte-Prescott +1 more
exaly +6 more sources
Neural Network for WGDOP Approximation and Mobile Location [PDF]
Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013 This paper considers location methods that are applicable in global positioning systems (GPS), wireless sensor networks (WSN), and cellular communication systems. The approach is to employ the resilient backpropagation (Rprop), an artificial neural network learning algorithm, to compute weighted geometric dilution of precision (WGDOP), which represents
Chien-Sheng Chen +3 more
wiley +3 more sources
Comparison of Objectives in Multiobjective Optimization of Ultrasonic Positioning Anchor Placement [PDF]
IEEE Transactions on Instrumentation and Measurement, 2022 The position of anchors in an ultrasonic positioning system has a significant impact on the performance of that system. This impact on performance can be in the form of positioning error, how large of a space the system can cover, and then the number of ...
Sebastian Haigh +2 more
exaly +3 more sources
International Journal of Intelligent Networks, 2021 Positioning accuracy of any navigation system plays a vital role in precise positioning applications like CAT-1 aircraft landings, surveying, etc. GNSS positioning accuracy can be affected by many factors like multipath, refraction in atmospheric layers,
Ch Rajasekhar, G Sasibhushana Rao
exaly +4 more sources
Satellite selection with an end-to-end deep learning network
GPS Solutions, 2018 Benefiting from multi-constellation Global Navigation Satellite Systems (GNSS), more and more visible satellites can be used to improve user positioning performance.
Panpan Huang +2 more
exaly +4 more sources
A Weighted Geometric Dilution of Precision-Based Method for Indoor Positioning System
Journal of Communications, 2020 The weaknesses of ranging techniques on using RSS in indoor localization are fluctuating the RSS values. This situation will affect to the accuracy of distance measurement between anchor and target node.
A. D. Ramadhani +2 more
semanticscholar +1 more source