Results 81 to 90 of about 8,425 (174)

Hybrid TDOA/DOA Multiple PD Localization Using Two Arrays With KPCA-mnc-FastICA and Sparrow Search Algorithm

IEEE Open Journal of Instrumentation and Measurement
Time difference of arrival (TDOA) and direction of arrival (DOA) are, respectively, applied to detect partial discharge (PD) target with ultrasonic signal.
Zeyu Zhang, Xiaojun Tang, Xiaoshan Li, Chongzhi Liu   +3 more
doaj   +1 more source

Leveraging Whole Genomes, Mitochondrial DNA and Haploblocks to Decipher Complex Demographic Histories: An Example From a Broadly Admixed Arctic Fish

Molecular Ecology, Volume 34, Issue 10, May 2025.
ABSTRACT The study of phylogeography has transitioned from mitochondrial haplotypes to genome‐wide analyses, borrowing from population genomics methods along the way. Whole‐genome sequencing allows the study of both mitochondrial and nuclear DNA and provides the density of markers to investigate recombination along the genome.
Xavier Dallaire, Eric Normandeau, Thomas Brazier, Les Harris, Michael M. Hansen, Claire Mérot, Jean‐Sébastien Moore   +6 more
wiley   +1 more source

Optimization of Time Synchronization and Algorithms with TDOA Based Indoor Positioning Technique for Internet of Things

Sensors, 2020
To provide high-precision positioning for Internet of Things (IoT) scenarios, we optimize the indoor positioning technique based on Ultra-Wideband (UWB) Time Difference of Arrival (TDOA) equipment.
Kun Zhao, Tiantian Zhao, Zhengqi Zheng, Chao Yu, Difeng Ma, Khaled Rabie, Rupak Kharel   +6 more
doaj   +1 more source

Time-Difference-of-Arrival (TDoA) Based Wireless Indoor Localization Using an Effective Hybrid Time Synchronization

, 2019
Wireless indoor localization is a major challenging issue for state-of-the-art technologies and applications which require precise and robust location information. Many restrictions affect the performance of the wireless indoor localization, for instance, intricate building architecture, decorated appliances inside the building, and inaccessibility and
Yuzana Hlaing, Nyein Aye Maung Maung
openaire   +1 more source

An experimental proof of concept of time‐reversal single‐sensor acoustic source localisation: Application to partial discharges

High Voltage, Volume 10, Issue 2, Page 351-361, April 2025.
Abstract In this paper, for the first time, an experimental proof of concept for utilising time reversal (TR) in the acoustic regime to localise partial discharge (PD) sources was presented using a single sensor. To achieve this, an experimental setup comprising a water tank, acoustic transducers for signal transmission and reception, and 2D scanners ...
Hamidreza Karami, Zhaoyang Wang, Parsa Khorasani, Javad Zohrevand, Marcos Rubinstein, Farhad Rachidi   +5 more
wiley   +1 more source

Combined Noise and Clock CRLB Error Model for the Optimization of Node Location in Time Positioning Systems

IEEE Access, 2020
The emergence of autonomous vehicles with high needs for accuracy in location has hardened the requirements of the positioning systems used for navigation.
Ruben alvarez, Javier Diez-Gonzalez, Lidia Sanchez-Gonzalez, Hilde Perez   +3 more
doaj   +1 more source

A population Monte Carlo model for underwater acoustic telemetry positioning in reflective environments

Methods in Ecology and Evolution, Volume 16, Issue 4, Page 775-785, April 2025.
Abstract Underwater acoustic telemetry positioning is widely used to track the fine‐scale movements of aquatic animals. In study areas near acoustically reflective surfaces, reflected transmissions may cause large detection outliers that can severely reduce the accuracy of positioning models.
James Adam Campbell, Samuel Joseph Shry, Petter Lundberg, Olle Calles, Franz Hölker   +4 more
wiley   +1 more source

Constrained Weighted Least-Squares Algorithms for 3-D AOA-Based Hybrid Localization

IEEE Open Journal of Signal Processing
Source localization with time-of-arrival (TOA), time-difference-of-arrival (TDOA), time-delay (TD), received-signal-strength (RSS), or angle-of-arrival (AOA) measurements from several spatially distributed sensors is commonly used in practice.
Yanbin Zou, Wenbo Wu, Jingna Fan, Huaping Liu   +3 more
doaj   +1 more source

A Closed-Form Localization Algorithm and GDOP Analysis for Multiple TDOAs and Single TOA Based Hybrid Positioning

Applied Sciences, 2019
Cellular communication systems support mobile phones positioning function for Enhanced-911 (E-911) location requirements, but the positioning accuracy is poor. The fifth-generation (5G) cellular communication system can use indoor distribution systems to
Zhongliang Deng, Hanhua Wang, Xinyu Zheng, Xiao Fu, Lu Yin, Shihao Tang, Fuxing Yang   +6 more
doaj   +1 more source

Automatic detection for bioacoustic research: a practical guide from and for biologists and computer scientists

Biological Reviews, Volume 100, Issue 2, Page 620-646, April 2025.
ABSTRACT Recent years have seen a dramatic rise in the use of passive acoustic monitoring (PAM) for biological and ecological applications, and a corresponding increase in the volume of data generated. However, data sets are often becoming so sizable that analysing them manually is increasingly burdensome and unrealistic. Fortunately, we have also seen
Arik Kershenbaum, Çağlar Akçay, Lakshmi Babu‐Saheer, Alex Barnhill, Paul Best, Jules Cauzinille, Dena Clink, Angela Dassow, Emmanuel Dufourq, Jonathan Growcott, Andrew Markham, Barbara Marti‐Domken, Ricard Marxer, Jen Muir, Sam Reynolds, Holly Root‐Gutteridge, Sougata Sadhukhan, Loretta Schindler, Bethany R. Smith, Dan Stowell, Claudia A.F. Wascher, Jacob C. Dunn   +21 more
wiley   +1 more source