Results 21 to 30 of about 8,811 (267)

A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements

open access: yesRemote Sensing, 2022
In this paper, we study a geometric dilution of a precision (GDOP)-based localization performance metric for multisite radar adopting a time-of-arrival (TOA)-based localization scheme.
Yao Wang   +3 more
doaj   +1 more source

Geometric Dilution of Precision for Received Signal Strength in the Wireless Sensor Networks

open access: yesIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2019
Wanchun Li, Ping Wei, Hongshu Liao
exaly   +3 more sources

Availability Analysis of GNSS Signal in High Orbit [PDF]

open access: yesHangkong bingqi, 2021
Global navigation satellite system (GNSS) has the characteristics of strong autonomy, high real-time, high positioning accuracy and low cost, and it has been widely used by ground, low earth orbit (LEO) and medium earth orbit (MEO) users. However, in the
Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding
doaj   +1 more source

A satellite selection algorithm based on adaptive simulated annealing particle swarm optimization for the BeiDou Navigation Satellite System/Global Positioning System receiver

open access: yesInternational Journal of Distributed Sensor Networks, 2021
In this article, we propose a new particle swarm optimization–based satellite selection algorithm for BeiDou Navigation Satellite System/Global Positioning System receiver, which aims to reduce the computational complexity of receivers under the multi ...
Ershen Wang   +5 more
doaj   +1 more source

Weighted GDoP for improved position accuracy using NavIC and GPS hybrid constellation over Indian sub-continent

open access: yesInternational 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   +2 more
doaj   +1 more source

TDOA positioning accuracy analysis based on time difference direction‐finding in distributed high‐frequency surface wave radar

open access: yesIET Radar, Sonar & Navigation, 2023
In the past few decades, the Time Difference of Arrival location technology in distributed high‐frequency surface wave radar has attracted wide attention due to its simple system, low cost, and higher positioning accuracy.
Yang Bai   +3 more
doaj   +1 more source

HDOP and VDOP Analysis in an Ideal Placement Environment for Dual GNSSs

open access: yesSensors, 2022
Increasing the number of satellites in a global navigation satellite system (GNSS) improves the positioning accuracy and increases availability. However, it reduces the positioning accuracy improvement rate and increases the calculation loads, which can ...
JinHyeok Jang   +3 more
doaj   +1 more source

ETP/GDOP behavior study for N-sensors arrays in a multilateration radar system

open access: yesIteckne, 2009
In this paper, we evaluated the ETP (Expected Theoretical Precision) and GDOP (Geometric Dilution Of Precision) enhancement related to the number of sensors in a Multilateration radar system.
Iván Antonio Mantilla-Gaviria   +3 more
doaj   +1 more source

Cooperative Navigation for Heterogeneous Air-Ground Vehicles Based on Interoperation Strategy

open access: yesRemote Sensing, 2023
This paper focuses on the cooperative navigation of heterogeneous air-ground vehicle formations in a Global Navigation Satellite System (GNSS) challenged environment and proposes a cooperative navigation method based on motion estimation and a regionally
Chenfa Shi   +4 more
doaj   +1 more source

A geometric dilution of precision based 3D indoor positioning scheme

open access: yes上海师范大学学报. 自然科学版, 2017
A geometric dilution of precision(GDOP) based 3D indoor positioning scheme was proposed for the layout of anchor nodes.Through the proposed scheme,the biconical configuration could be obtained.The performance of the scheme was evaluated by utilizing two ...
Yang Ming, Liu Zhongling, Yu Hui
doaj   +1 more source

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