A new anchor nodes position determination method supporting UWB localization system deployment

2017 ◽  
Author(s):  
Vitomir Djaja-Josko
Keyword(s):  
Determination Method ◽  
Localization System ◽  
Position Determination ◽  
Anchor Nodes

TDOA estimation using a pair of synchronized anchor nodes

2019 ◽  
Vol 11 (7) ◽  
pp. 593-601 ◽  
Author(s):  
Vitomir Djaja-Josko ◽  
Jerzy Kolakowski ◽  
Jozef Modelski
Keyword(s):  
Indoor Environment ◽  
Indoor Localization ◽  
Time Difference ◽  
Time Difference Of Arrival ◽  
System Architectures ◽  
Localization System ◽  
Position Determination ◽  
Positioning Errors ◽  
Anchor Nodes ◽  
Novel Method

AbstractNowadays, as indoor localization is getting more popular, there is a growing need for reliable and accurate techniques of position determination. Recently, ultrawideband (UWB)-based systems are gaining popularity, since they make achieving positioning errors in the range of dozens of centimeters or even single centimeters, possible. The Time Difference of Arrival (TDOA)-based systems are especially attractive because they allow to simplify tags, in which functionality can be limited to transmission of packets. However, one of TDOA-based solution drawbacks is a need for strict synchronization between anchor nodes, which may be hard to provide in indoor environment. In the paper, a novel method for simplifying synchronization in TDOA-based UWB localization system is described. The paper presents two system architectures based on pairs of synchronized nodes. Results of simulations and experiments included in the article allow for evaluation of both solutions.

Application of the position determination method for detecting human limbs

2020 ◽  
Author(s):  
A.D. Solntseva ◽  
◽  
D.S. Solntsev ◽  
A.S. Borde ◽  
◽  
...  
Keyword(s):  
Determination Method ◽  
Position Determination

Integrated GNSS Attitude and Position Determination based on an Affine Constrained Model

2017 ◽  
Vol 71 (1) ◽  
pp. 134-150
Author(s):  
Haiying Liu ◽  
Lei Xu ◽  
Xiaolin Meng ◽  
Xibei Chen ◽  
Junyi Li
Keyword(s):  
Attitude Determination ◽  
Satellite System ◽  
Determination Method ◽  
Position Determination ◽  
Static Data ◽  
Constraint Information ◽  
Constrained Model ◽  
Global Navigation Satellite ◽  
Constraint Model ◽  
Gnss Data

Global Navigation Satellite System (GNSS) attitude determination and positioning play an important role in many navigation applications. However, the two GNSS-based problems are usually treated separately. This ignores the constraint information of the GNSS antenna array and the accuracy is limited. To improve the performance of navigation, an integrated attitude and position determination method based on an affine constraint model is presented. In the first part, the GNSS array model and affine constrained attitude determination method are compared with the unconstrained methods. Then the integrated attitude and position determination method is presented. The performance of the proposed method is tested with a series of static data and dynamic experimental GNSS data. The results show that the proposed method can improve the success rate of ambiguity resolution to further improve the accuracy of attitude determination and relative positioning compared to the unconstrained methods.

scholarly journals Performance Analysis of the Direct Position Determination Method in the Presence of Array Model Errors

Sensors ◽  
2017 ◽  
Vol 17 (7) ◽  
pp. 1550 ◽  
Author(s):  
Ding Wang ◽  
Hongyi Yu ◽  
Zhidong Wu ◽  
Cheng Wang
Keyword(s):  
Performance Analysis ◽  
Determination Method ◽  
Model Errors ◽  
Position Determination

Study on the Installed Position Determination Method of the Air Condensers in High Temperature Mine

2014 ◽  
Vol 1065-1069 ◽  
pp. 2129-2132
Author(s):  
Ping Chen ◽  
Fang Fang Li ◽  
Yu Tian Li
Keyword(s):  
High Temperature ◽  
High Efficiency ◽  
Cooling System ◽  
Great Influence ◽  
Air Cooling ◽  
Determination Method ◽  
Coal Face ◽  
Position Determination ◽  
Efficiency And Effectiveness ◽  
The Ideal

Mine cooling system plays an important role in the high temperature mine. The installed position of the air condensers in the intake airway has great influence on the cooling efficiency and effectiveness of coal face. According to the concept of the air cooling length, we mainly study the effective installation position of the mine air condensers in the intake airway and put forward the installed position determination method of more groups of air condensers. Through the average calculation method, the ideal installed position of the air condensers is determined. Thus the efficiency of the mine cooling system is improved, and the safety and high efficiency of the mine production is ensured.

scholarly journals A direct position determination method with combined TDOA and FDOA based on particle filter

2018 ◽  
Vol 31 (1) ◽  
pp. 161-168 ◽  
Author(s):  
Zhiyu LU ◽  
Bin BA ◽  
Jianhui WANG ◽  
Wenchao LI ◽  
Daming WANG
Keyword(s):  
Particle Filter ◽  
Determination Method ◽  
Position Determination
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