Paper Info
Title
Coherent demodulation of AIS-GMSK signals in co-channel interference
Abstract
Gaussian Minimum Shift Keying (GMSK) modulation is used by GSM phone networks, the maritime Automatic Identification System (AIS) and other communication systems. These systems are designed to handle large numbers of users by time and frequency management. However, when the system is heavily loaded, the signals may interfere with each other, resulting in co-channel interference. We demonstrate accurate and effective methods to blindly estimate and track GMSK signal parameters needed for signal demodulation, including carrier frequency, carrier phase, baud rate, baud center and modulation index. We further demonstrate the use of these parameters in the demodulation of the signal even in severe noise and co-channel interference.
Year
DOI
Venue
2011
10.1109/ACSSC.2011.6190005
Signals, Systems and Computers
Keywords
DocType
ISSN
cellular radio,cochannel interference,demodulation,minimum shift keying,telecommunication network management,AIS-GMSK signals,Gaussian minimum shift keying modulation,baud center,baud rate,carrier frequency,carrier phase,cochannel interference,coherent demodulation,communication systems,frequency management,maritime automatic identification system,modulation index,signal demodulation,time management,AIS,GMSK,GSM,Viterbi decoding,carrier estimation,co-channel interference,demodulation
Conference
1058-6393
ISBN
Citations 
PageRank 
978-1-4673-0321-7
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Nelson, D.J.100.34
Hopkins, J.R.200.34
Bartos, A.L.300.34