Results 41 to 50 of about 1,673 (220)
Localization of wireless emitters based on the time difference of arrival (TDOA) and wavelet denoising [PDF]
, 1999 The views expressed in this report are those of the author and do not reflect the official policy or position of the Department of Defense or the United States Government.The localization of mobile wireless communication units using time difference of ...
Aktas, Unal +2 more
core +1 more source
Evidence for Circumburst Extinction of Gamma-Ray Bursts with Dark Optical Afterglows and Evidence for a Molecular Cloud Origin of Gamma-Ray Bursts [PDF]
, 2002 First, we show that the gamma-ray bursts with dark optical afterglows (DOAs) cannot be explained by a failure to image deeply enough quickly enough, and argue that circumburst extinction is the most likely solution.
Price, Paul A., Reichart, Daniel E.
core +2 more sources
A Mathematical Algorithm of Locomotive Source Localization Based on Hyperbolic Technique
International Journal of Distributed Sensor Networks, 2015 Recent trend shows that sensors situated on an axis in two-dimensional scenario measuring the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) of the emitting signal from a moving source can estimate the emitting signal's ...
Homayun Kabir +3 more
doaj +1 more source
Accuracy of Positioning of Ground Sources Using Geostationary Repeaters
Известия высших учебных заведений России: Радиоэлектроника, 2020 Introduction. Currently, there is a significant increase in the number of relay satellites in geostationary orbit. However, frequent incidents of illegal use of the satellites frequency resource, as well as unintentional and deliberate interference with ...
R. D. Gall
doaj +1 more source
An effective localization algorithm for moving sources
EURASIP Journal on Advances in Signal Processing, 2021 By utilizing the time difference of arrival (TDOA), the frequency difference of arrival (FDOA), and the differential Doppler rate (DDR) measurements from sensors, this paper proposes an effective moving source localization algorithm with closed solutions.
Hao Wang, Liping Li
doaj +1 more source
3D moving target tracking with measurement fusion of TDoA/FDoA/AoA
ICT Express, 2019 In this paper, we investigate the tracking of the 3D moving target when multiple measurements are available. We propose a particle filter-based 3D target tracking algorithm with measurement of time difference of arrival (TDoA), frequency difference of ...
Hyeondeog Seo +5 more
doaj +1 more source
TDOA/FDOA estimation method based on dechirp
IET Signal Processing, 2016 A method based on dechirp is proposed to estimate the time difference of arrival and frequency difference of arrival between two linear frequency modulated signals. By dechirping two signals with different angles and computing the projection of cross ambiguity function (CAF) of the two dechirped signals on Doppler axis, a set of equations can be set up
Fuyang Guo, Zijing Zhang, Linsen Yang
openaire +1 more source
Development and Demonstration of a TDOA-Based GNSS Interference Signal Localization System [PDF]
, 2012 Background theory, a reference design, and demonstration results are given for a Global Navigation Satellite System (GNSS) interference localization system comprising a distributed radio-frequency sensor network that simultaneously locates multiple ...
Bhatti, Jahshan A. +2 more
core +1 more source
Passive detection of moving aerial target based on multiple collaborative GPS satellites [PDF]
, 2020 Passive localization is an important part of intelligent surveillance in security and emergency applications. Nowadays, Global Navigation Satellite Systems (GNSSs) have been widely deployed. As a result, the satellite signal receiver may receive multiple
Chen, Yunfei +5 more
core +1 more source
EURASIP Journal on Advances in Signal Processing, 2019 To weaken the effect of receiver location error on localization accuracy and make the localization model closer to the practical scenario, this paper considers the receiver location errors, usually neglected in prior studies into the measurement model ...
Zhixin Liu +3 more
doaj +1 more source