Results 41 to 50 of about 1,997 (198)

GICS, a new concept to enhance in-flight safety and security of commercial aviation [PDF]

open access: yesMATEC Web of Conferences, 2019
This paper presents a new concept of aircraft tracking based on a LEO constellation of small satellites, each of them carrying receiving and transmitting devices in order to check the integrity of the ADS-B (Automatic Dependent Surveillance - Broadcast ...
Lesturgie Marc   +2 more
doaj   +1 more source

Two efficient localization algorithms for multilateration

open access: yes, 2009
Two localization algorithms for multilateration systems are derived and analyzed. Instead of the classical time difference of arrival (TDOA), a direct use of the time of arrival (TOA) is made.
LEONARDI, MAURO   +4 more
core   +1 more source

On ADS-B Sensor Placement for Secure Wide-Area Multilateration

open access: yesProceedings, 2020
As automatic dependent surveillance–broadcast (ADS-B) becomes more prevalent, the placement of on-ground sensors is vital for Air Traffic Control (ATC) to control the airspace.
Ala’ Darabseh   +3 more
doaj   +1 more source

WAH‐i: Optimising microphone array geometry for customised localisation accuracy

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Accurate spatial localisation of free‐flying echolocating bats is foundational for resolving fine‐scale flight and echolocation behaviour, prey interception and spatial decision‐making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are typically ...
Ravi Umadi
wiley   +1 more source

Determinação da posição de referências fixas por multilateração sequencial aplicada a um sistema indoor-gps [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2013O campo da geodésia industrial pode ser definido como a metrologia de grandes máquinas e estruturas.
Eger, James Schipmann
core  

Positioning aquatic animals with acoustic transmitters

open access: yesMethods in Ecology and Evolution, 2023
Geolocating aquatic animals with acoustic tags has been ongoing for decades, relying on the detection of acoustic signals at multiple receivers with known positions to calculate a 2D or 3D position, and ultimately recreate the path of an aquatic animal ...
Robert J. Lennox   +27 more
doaj   +1 more source

Design of a Multi-Point Kinematic Coupling for a High Precision Telescopic Simultaneous Measurement System

open access: yesSensors, 2021
This paper covers the design of a new multi-point kinematic coupling specially developed for a high precision multi-telescopic arm measurement system for the volumetric verification of machine tools with linear and/or rotary axes.
Raquel Acero   +5 more
doaj   +1 more source

Participation in Multilateral Treaties* [PDF]

open access: yes, 2017
This section records the participation of Asian states in open multilateral law-making treaties which mostly aim at world-wide adherence. It updates the treaty sections of earlier Volumes until 31 December 2023. New data are preceded by a reference to the most recent previous entry in the multilateral treaties section of the Asian Yearbook of ...
openaire   +10 more sources

Social organization and habitat use shape the gut microbiome of a marine fish

open access: yesJournal of Animal Ecology, Volume 95, Issue 7, Page 1091-1107, July 2026.
This study provides the first evidence linking habitat use—and to a lesser extent social organization—to gut microbiome composition in a wild marine fish. The results indicate that local habitat conditions are the primary driver of microbial variation, while social effects are detectable but weak.
Aina Pons   +7 more
wiley   +1 more source

APLICATIONS OF MULTILATERATION SYSTEMS IN AVIATION [PDF]

open access: yes, 2012
 The aim of my investigation was to find the alternative ways of performing of the airspace surveillance more effectively, precisely and economically(Fig.1).
Buleza, Ihor
core   +1 more source

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