Title :
Reduction of interference from DGPS transmissions in the MF band using a GMSK modulation scheme
Author :
Muller, Tim ; Rohling, Hermann
Author_Institution :
Inst. of Telecommun., Tech. Univ. Braunschweig
fDate :
10/1/1994 12:00:00 AM
Abstract :
The accuracy of the Global Positioning System (GPS) can be improved by differential techniques. For maritime applications a DGPS service with transmissions by maritime radiobeacons in the MF band is provided. It offers a position accuracy of approximately 5 m. For the data link a minimum shift keying (MSK) modulation scheme has been recommended. The adjacent channel interference at the maximum transmission rate might not be consistent with existing frequency plans
Keywords :
interference suppression; marine systems; minimum shift keying; radionavigation; satellite relay systems; DGPS transmissions; GMSK modulation; Global Positioning System; MF band; MSK; accuracy; adjacent channel interference; data link; differential techniques; interference; maritime applications; maritime radiobeacons; maximum transmission rate; minimum shift keying; position accuracy; Frequency; Global Positioning System; Interchannel interference;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
