Results 61 to 70 of about 147 (116)

Moving target positioning algorithm based on multidimensional scaling analysis from TDOA and FDOA with sensor uncertainties

open access: yesCogent Engineering
The problem of moving target localization from range and velocity difference measurements has attracted considerable attention in recent years. In this article, a novel weighted multidimensional scaling (MDS) algorithm is proposed to estimate the ...
Hesham Ibrahim Ahmed
doaj   +1 more source

Single-observer Multi-illuminators Passive Location Using TDOA and FDOA Measurements

open access: yes工程科学与技术, 2016
:In order to locate a moving target with a single observer receiving signals from multiple illuminators, with the time differences of arrival (TDOAs) and frequency differences of arrival (FDOAs) between direct signals and target echoes as measurements ...
zhaoyongsheng, ZHAO Chuang, ZHAO Yongjun
doaj  

A Review of Linear Multilateration Techniques and Applications

open access: yesIEEE Access
In multilateration, distances between an unknown location and several known points are used to determine the location of the unknown point. Papers on algorithms for multilateration, such as time of arrival (TOA), time difference of arrival (TDOA), and ...
Eric Widdison, David G. Long
doaj   +1 more source

Satellite Search and Rescue Localization Technology based on Windowed CAF Estimation

open access: yesGuangtongxin yanjiu
【Objective】With the continuous development of satellite technology, the application of satellites to low coverage areas of ground information networks for personnel search and rescue is becoming increasingly popular.
ZHENG Chao, QU Dexin, ZHANG Gengxin
doaj  

Improved localization algorithm with FDOA measurements [PDF]

open access: yesProceedings of the 2nd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2016), 2017
Zhi-Jie Zheng   +3 more
openaire   +1 more source

Moving source geolocation algorithm and performance analysis using dual-satellites sequence measurements and calibration sources

open access: yesTongxin xuebao, 2015
The method for locating a moving source on earth using a sequence of time difference of arrival(TDOA)and frequency difference of arrival(FDOA)measurements pairs obtained by dual-satellites was presented in the presence of calibration sources with ...
Ding WANG, Li ZHANG, Ying WU
doaj   +2 more sources

A Collaborative Navigation with Optimal Clustering for Multi-layer Swarm Systems

open access: yesGuidance, Navigation and Control
This paper presents a cluster-optimized collaborative navigation method for large-scale multi-layer swarm systems, addressing challenges in global navigation satellite system (GNSS)-denied environments.
Rong Wang   +4 more
doaj   +1 more source

FDOA-based passive source localization: a geometric perspective

open access: yes, 2018
We consider the problem of passively locating the source of a radio-frequency signal using observations by several sensors. Received signals can be compared to obtain time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements. The geometric relationship satisfied by these measurements allow us to make inferences about the
Cameron, Karleigh J., author   +4 more
openaire   +1 more source

Mitigating Ephemeris Uncertainty in LEO Geolocation: An Uncertainty-Aware Weighted Least Squares Method via Dual-Satellite Cumulative TDOA/FDOA Fusion

open access: yesIEEE Open Journal of the Communications Society
Accurate and robust localization of non-cooperative emitters is a cornerstone capability for modern low Earth orbit. To mitigate localization degradation caused by satellite ephemeris errors, this paper proposes a multi-epoch dual-satellite geolocation ...
Ziming Fan   +5 more
doaj   +1 more source

A Co-Localization Algorithm for Underwater Moving Targets with an Unknown Constant Signal Propagation Speed and Platform Errors

open access: yesSensors
Underwater mobile acoustic source target localization encounters several challenges, including the unknown propagation speed of the source signal, uncertainty in the observation platform’s position and velocity (i.e., platform systematic errors), and ...
Yang Liu   +4 more
doaj   +1 more source

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