Results 31 to 40 of about 36,907 (226)

A Dimensionality Reduction-Based Multi-Step Clustering Method for Robust Vessel Trajectory Analysis [PDF]

open access: yes, 2017
The Shipboard Automatic Identification System (AIS) is crucial for navigation safety and maritime surveillance, data mining and pattern analysis of AIS information have attracted considerable attention in terms of both basic research and practical ...
Abbas   +12 more
core   +2 more sources

Atmospheric refractivity estimation from AIS signal power using the quantum-behaved particle swarm optimization algorithm

open access: yesOpen Geosciences, 2019
This paper proposes a new refractivity profile estimation method based on the use of AIS signal power and quantum-behaved particle swarm optimization (QPSO) algorithm to solve the inverse problem.
Tang Wenlong   +4 more
doaj   +1 more source

Expanding the Possibilities of AIS Data with Heuristics [PDF]

open access: yesTransNav, 2017
Automatic Identification System (AIS) is primarily used as a tracking system for ships, but with the launch of satellites to collect these data, new and previously untested possibilities are emerging. This paper presents the development of heuristics for
Bjørnar Brende Smestad   +2 more
doaj   +1 more source

AIS-based Evaluation of Target Detectors and SAR Sensors Characteristics for Maritime Surveillance [PDF]

open access: yes, 2015
International audienceThis paper studies the performances of different ship detectors based on adaptive threshold algorithms. The detec- tion algorithms are based on various clutter distributions and assessed automatically with a systematic methodology ...
Garello, René   +4 more
core   +2 more sources

Akuisisi Data NMEA 0183 AIS Berbasis Mikrokontroler sebagai Sistem Monitoring Informasi Kapal

open access: yesJurnal Elkomika, 2019
ABSTRAK Data kapal dari perangkat AIS (Automatic Identification System) merupakan sumber informasi bagi nahkoda kapal laut. Informasi-informasi tersebut diperoleh dengan mengubah menu secara manual pada layar AIS yang berukuran kecil.
ISA RACHMAN   +2 more
doaj   +1 more source

The Additional Secondary Phase Correction System for AIS Signals

open access: yesSensors, 2017
This paper looks at the development and implementation of the additional secondary phase factor (ASF) real-time correction system for the Automatic Identification System (AIS) signal.
Xiaoye Wang, Shufang Zhang, Xiaowen Sun
doaj   +1 more source

Cell Grid Architecture for Maritime Route Prediction on AIS Data Streams

open access: yes, 2018
The 2018 Grand Challenge targets the problem of accurate predictions on data streams produced by automatic identification system (AIS) equipment, describing naval traffic.
Amariei, Ciprian   +3 more
core   +1 more source

Maritime tracking data analysis and integration with AISdb

open access: yesSoftwareX
Efficiently handling Automatic Identification System (AIS) data is vital for enhancing maritime safety and navigation, yet is hindered by the system’s high volume and error-prone datasets.
Gabriel Spadon   +9 more
doaj   +1 more source

Mapping EU fishing activities using ship tracking data

open access: yes, 2015
Information and understanding of fishing activities at sea are fundamental components of marine knowledge and maritime situational awareness. Such information is important to fisheries science, public authorities and policy makers.
Alessandrini, Alfredo   +5 more
core   +1 more source

Cyclic redundancy check-based detection algorithms for automatic identification system signals received by satellite. [PDF]

open access: yes, 2013
This paper addresses the problem of demodulating signals transmitted in the automatic identification system. The main characteristics of such signals consist of two points: (i) they are modulated using a trellis-coded modulation, more precisely a ...
Babaie   +9 more
core   +2 more sources

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