Results 61 to 70 of about 527 (159)
Experimental Measurement of Time Difference Of Arrival
, 2016 International audienceIn this paper is described an experimental passive localization system based on SDR (Software Defined Radio) components. This system is designed to measure Time Differences of Arrival (TDOA) of radar pulses between two platforms ...
Cexus, Jean-Christophe +4 more
core +3 more sources
Direct position determination of moving targets based on DOA
Electronics Letters, Volume 60, Issue 15, August 2024.This letter proposes a new DPD method for moving target based on DOA. First, using a proposed cost function, the position information is obtained from the received array signals directly, which enhances the accuracy of localization. Second, utilizing the method of successional difference the velocity is extracted, which avoid the multi‐dimensional grid
Shuming He +4 more
wiley +1 more source
A fast direct locator for radiation source based on composite convolution neural network
Electronics Letters, Volume 60, Issue 14, July 2024.In this article, we propose a fast source localization algorithm based on composite convolutional neural network. Our network is less complex than direct positioning scheme, but can achieve better positioning performance. It can also be easily extended to the field of multi‐source localization, which also has good robustness to small‐scale fading of ...
Chenhao Gong +3 more
wiley +1 more source
The Wireless frameworks consuming TDOA and FDOA Extents for Mobile Emitter Geolocation and Tracking applications [PDF]
, 2015 Mobiles devices are essential in wireless correspondence frameworks, improvement of exact and dependable portable situating advancements. The execution of precise area estimation is by making systems and strategies manages following of portable emitter ...
K.Giri, Babu, Mohammed, Anwar
core
Distributed localization of a RF target in NLOS environments
, 2014 We propose a novel distributed expectation maximization (EM) method for non-cooperative RF device localization using a wireless sensor network. We consider the scenario where few or no sensors receive line-of-sight signals from the target. In the case of
Leng, Mei +4 more
core +1 more source
Direction‐of‐Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution
International Journal of Antennas and Propagation, Volume 2024, Issue 1, 2024.This paper investigates the direction‐of‐arrival (DOA) estimation of electromagnetic pulse (EMP) sources in modern radar system and proposes a novel EMP DOA estimation method. The method is based on energy distribution and improves the low accuracy and high computational complexity of the conventional estimation method. According to the characteristics
Weiyi Li +3 more
wiley +1 more source
Applied SciencesLocalizing a moving source by Time Difference of Arrival (TDOA) and Frequency Difference of Arrival (FDOA) commonly requires at least N+1 sensors in N-dimensional space to obtain more than N pairs of TDOAs and FDOAs, thereby establishing more than 2N ...
Xu Yang
doaj +1 more source
Data compression with application to geo-location [PDF]
, 2007 A common way to locate an emitter within a wireless sensor network requires the estimation of time-difference-of-arrival (TDOA) parameters using data collected by a set of spatially separated sensors. Compressing the data that is shared among the sensors
Perkins, William
core +2 more sources
IEEE Access, 2018 Underwater source localization problems are complicated and challenging: 1) the sound propagation speed is often unknown and the unpredictable ocean current might lead to the uncertainties of sensor parameters (i.e., position and velocity); 2) the ...
Bingbing Zhang +3 more
doaj +1 more source
Geolocation of a Known Altitude Target Using TDOA and GROA in the Presence of Receiver Location Uncertainty [PDF]
, 2016 This paper considers the problem of geolocating a target on the Earth surface using the target signal time difference of arrival (TDOA) and gain ratio of arrival (GROA) measurements when the receiver positions are subject to random errors.
Bing Deng +3 more
core +2 more sources