Results 71 to 80 of about 8,425 (174)

A Review of Linear Multilateration Techniques and Applications

IEEE 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

Partial Discharge Localisation in Power Transformer by UHF Technique

High Voltage, Volume 10, Issue 5, Page 1314-1323, October 2025.
ABSTRACT This article deals with the methods of finding partial discharge (PD) location in power transformers using ultra high frequency (UHF) measurements. The UHF technique utilises two methods to find the PD location, that is, the shortest path method and hyperbolic method.
Mohammad Amin Jangjoo, Mehdi Allahbakhshi, Hassan Reza Mirzaei, Ali Abooee   +3 more
wiley   +1 more source

Combined Evidence Reveals the Origin of a Rapid Range Expansion Despite Retained Genetic Diversity and a Weak Founder Effect

Molecular Ecology, Volume 34, Issue 19, October 2025.
ABSTRACT Many species are currently experiencing range shifts in response to changing environmental conditions with potentially serious genetic consequences. Repeated founder events and strong genetic drift are expected to erode genetic variation at the range front, reducing adaptive potential and slowing or even halting the expansion.
Nora M. Bergman, Petteri Lehikoinen, Edward Kluen, Staffan Bensch, Camilla Lo Cascio Sætre, Fabrice Eroukhmanoff, Frode Fossøy, Petr Procházka, William J. Smith, Bård G. Stokke, Craig R. Primmer, Rose Thorogood, Katja Rönkä   +12 more
wiley   +1 more source

Method for Rapid Judgment of Faulty Stations of Multilateration System

MATEC Web of Conferences, 2015
An airport surface multilateration system based on the time difference of arrival (TDOA) positioning principle establishes equations to calculate the position of target through utilizing the TDOA of targets’ answering signals to the ground receiving ...
Wu Honggang, Tang Yong, Li Xingbo
doaj   +1 more source

Determining the Direction of Radio Wave Reception for Maximum Radiation Using Genetic Algorithm and RF to DC Conversion Efficiency Analysis

Engineering Reports, Volume 7, Issue 9, September 2025.
In this study, a new plan for routing radio transmitters is presented using an algorithm compatible with RFEH. The proposed algorithm is based on the genetic algorithm (GA), and in an innovation, using the HPBW in the GA creates a population for initial sampling dependent on the receiver antenna.
S. Hosseini, Changiz Ghobadi, Javad Nourinia, M. Shokri   +3 more
wiley   +1 more source

A method for localization TDOA estimation based on signal‐level fusion and analysis

Electronics Letters
Passive localization using time difference of arrival (TDOA) is one of the common methods for radiated source target localization, and its localization performance depends on the accuracy of TDOA estimation. In many localization scenarios, the signals of
Dexiu Hu, Zewen Wang, Jie Huang, Pangzhe Li   +3 more
doaj   +1 more source

Joint Estimation of DOA and TDOA of Multiple Reflections by Matrix Pencil in Mobile Communications

IEEE Access, 2019
This paper presents the joint estimation of the direction of arrival (DOA) and the time difference of arrival (TDOA) for multipath signals, which is the central issue for mobile communications.
Yu Zheng, Yongzhi Yu
doaj   +1 more source

Improved position estimation method for locating an encrypted COSPAS‐SARSAT beacon

IET Radar, Sonar & Navigation, 2021
This study addresses a signal processing technique in a search and rescue system. An international disaster rescue communications support programme such as COSPAS‐ search and rescue satellite‐aided tracking (SARSAT) estimates the position of a beacon ...
Jung‐Hoon Lee, Young‐Jin Song, In‐Cheol Jeong, Jong‐Hoon Won   +3 more
doaj   +1 more source

The influences of environmental conditions on source localisation using a single vertical array and their exploitation through ground effect inversion [PDF]

, 2010
The performance of microphone arrays outdoors is influenced by the environmental conditions. Numerical simulations indicate that, while horizontal arrays are hardly affected, direction-of-arrival (DOA) estimation with vertical arrays becomes biased in ...
Kruse, Roland, Taherzadeh, Shahram
core  

Early detection and location of unexpected events in buried pipelines under unseen conditions using the two‐stream global fusion classifier model

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 21, Page 3295-3315, 29 August 2025.
Abstract Failure of buried pipelines can result in serious impacts, such as explosions, environmental contamination, and economic losses. Early detection and location of unexpected events is crucial to prevent such events. However, conventional monitoring methods exhibit limited generalization performance under varying environmental and operational ...
Sun‐Ho Lee, Choon‐Su Park, Dong‐Jin Yoon   +2 more
wiley   +1 more source