Results 41 to 50 of about 2,760 (217)

Aerial Localization and Navigation for Surveillance of Large, Featureless, GNSS‐Denied Maritime Environments

Journal of Field Robotics, Volume 42, Issue 8, Page 4215-4235, December 2025.
ABSTRACT In this study, we tackle the problem of surveilling a large area over the sea without access to the global navigation satellite system (GNSS) while searching for the known target vessel. The system utilizes an unmanned aerial vehicle (UAV) equipped with long‐range radio frequency (LoRa) localization and an RGB camera to detect the target ...
Marijana Peti, Lovro Marković, Ivan Lončar, Antonella Barišić Kulaš, Frano Petric, Ana Milas, Jurica Goričanec, Marko Car, Matko Orsag, Barbara A. Ferreira, Stjepan Bogdan   +10 more
wiley   +1 more source

Automatic Analysis of Hydroacoustic Signals Related to the Activity of the Fani Maoré Submarine Volcano

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Due to the properties of sound propagation underwater, including the existence of the SOFAR channel, sounds in the ocean can propagate over large distances with little attenuation. This makes passive acoustics a relevant method for monitoring natural events such as ice calving, earthquakes, and underwater volcanic eruptions.
Pierre‐Yves Raumer, Sara Bazin, Romain Safran, Dorian Cazau, Jean‐Yves Royer   +4 more
wiley   +1 more source

Beyond Trilateration: On the Localizability of Wireless Ad-Hoc Networks

, 2009
The proliferation of wireless and mobile devices has fostered the demand of context-aware applications, in which location is often viewed as one of the most significant contexts.
Z. Yang, Yang, Zheng, Yang, Z., Li, X.Y., Liu, Yunhao, Y. Liu, X.-Y. Li, Liu, Y., Li, Xiang-Yang   +8 more
core   +1 more source

M‐SADR: Mobile Self Adaptive Data Rate for Enhanced LoRa End‐Device Connectivity on the Move

International Journal of Communication Systems, Volume 38, Issue 15, October 2025.
The proposed M‐SADR method targets mobile LoRa end‐devices and achieves better performance, with a 2.4% improvement in packet delivery ratio and a 5.7% reduction in power consumption per successfully delivered packet. ABSTRACT Mobility is a critical aspect of the Internet of Things, reflecting the diverse and dynamic nature of potential applications ...
Vasileios Moysiadis, Panagiotis Radoglou‐Grammatikis, Evangelos Mourikis, Maria Zevgara, Dimitrios N. Skoutas, Charalabos Skianis, Panagiotis Sarigiannidis   +6 more
wiley   +1 more source

Contour-based Trilateration for Indoor Fingerprinting Localization

, 2015
Trilateration has been widely and successfully employed to locate outdoor mobile devices due to its accuracy. However, it cannot be directly applied for indoor localization due to issues such as non-line-of-sight measurement and multipath fading.
Hu, Tianyang, Tianyang Hu, Chan, S. H.Gary, He, Suining, S.-H. Gary Chan, Suining He   +5 more
core   +1 more source

Robust optimal distance‐based formation control of uncertain nonlinear agents over directed topologies

Asian Journal of Control, Volume 27, Issue 5, Page 2141-2157, September 2025.
Abstract This paper studies a formation control problem with distance constraints for nonlinear agents with uncertainties. Controlling an edge is assigned to only one of its incident agents. Directed graph theory is used to model the desired formation topology.
Reza Babazadeh, Rastko R. Selmic
wiley   +1 more source

Limits of Trilateration-Based Sensor Placement Algorithms

, 2017
International audienceTo localize a mobile vehicle in a predefined area, it is possible to resort to a positioning system using beacons. The questions arising then are: what is the right number of beacons to deploy, and where should they be positioned to
Kermorgant, Olivier, Génevé, Lionel, Laroche, Édouard   +2 more
core   +1 more source

Incorporating vertical movement of fishes in habitat use models

Journal of Fish Biology, Volume 106, Issue 5, Page 1570-1584, May 2025.
Abstract Fish telemetry studies now routinely collect positional and depth data, yet analytical approaches that integrate three‐dimensional data are limited. Here we apply the potential path volume (PPV) model, a method previously developed to estimate habitat volume based on rates of avian movement, to free‐swimming fish.
Ian A. Richter, Karen E. Smokorowski, Paul J. Blanchfield   +2 more
wiley   +1 more source

Quality of Trilateration: Confidence-Based Iterative Localization

, 2010
The proliferation of wireless and mobile devices has fostered the demand for context-aware applications, in which location is one of the most significant contexts.
Yang, Zheng, Liu, Yunhao
core   +1 more source

RcdMathLib: An Open Source Software Library for Computing on Resource-Limited Devices

Sensors, 2021
We developped an open source library called RcdMathLib for solving multivariate linear and nonlinear systems. RcdMathLib supports on-the-fly computing on low-cost and resource-constrained devices, e.g., microcontrollers. The decentralized processing is a
Zakaria Kasmi, Abdelmoumen Norrdine, Jochen Schiller, Mesut Güneş, Christoph Motzko   +4 more
doaj   +1 more source