Forward error correction for radiobeacon broadcast of differential GPS data

Author

Enge, Per K.

Author_Institution

Dept. of Electr. Eng., Worcester Polytech. Inst., MA, USA

Volume

29

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

223

Lastpage

233

Abstract

Marine radiobeacon networks are being used to broadcast differential Global Positioning System (DGPS) corrections to marine users. The correction data digitally modulate signals from some of the existing marine radiobeacons, which operate in the 285 to 325 kHz band, creating DGPS/radiobeacons. The corrections improve the accuracy of the GPS fix from 100 m to 5-10 m, and provide position fixing service for many marine applications which are too demanding for the normal GPS service. Forward error correction can be used to improve the reliability or range of the DGPS/radiobeacon signal. The improvements made possible by channel coding are analyzed, and a code for DGPS/radiobeacons is recommended

Keywords

encoding; error correction; marine systems; position measurement; radionavigation; satellite relay systems; 285 to 325 kHz; channel coding; differential GPS data; differential Global Positioning System; forward error correction; marine applications; position fixing; radiobeacon broadcast; reliability; Artificial satellites; Channel coding; Digital modulation; Forward error correction; Global Positioning System; Gravity; Radio broadcasting; Receiving antennas; Road transportation; Satellite broadcasting; Satellite navigation systems; Signal analysis;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.249128

Filename

249128