Reference : FM Discriminator for AIS Satellite Detection
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Multidisciplinary, general & others
http://hdl.handle.net/10993/16086
FM Discriminator for AIS Satellite Detection
English
Jurado Gallardo, Maria De Los Angeles [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
Ruy, Ghislain [LuxSpace, Luxembourg]
2010
Personal Satellite Services
Springer
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 43
19-34
No
978-3-642-13617-7
Berlin
Germany
2nd International ICST Conference on Personal Satellite Services
February 2010
Rome
Italy
[en] The Automatic Identification System (AIS) is a tracking system used on ships for several decades to improve traffic monitoring and safety at sea in a short range. The modulation technique used is Gaussian Minimum Shift Keying (GMSK).
Recently, the idea of receiving AIS signals from space arose. This presents mainly two challenges. The first one is that received signals present a large Doppler range due to the satellite speed. The second one is the simultaneous reception of signals from ships because of the broad satellite coverage.
In this paper, a novel non-coherent GMSK demodulator is proposed to handle the large Doppler shift problem based on several FM discriminators in parallel. A frame collision detection algorithm is presented but the collision problem is not addressed.
In addition, computer simulated and real signals are used to study the receiver performance on an AWGN channel.
http://hdl.handle.net/10993/16086
10.1007/978-3-642-13618-4_2

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