Test experience using marine radiobeacons for DGPS communications

Author

Ruane, Michael F. ; Enge, Per K. ; Olson, Katharyn

Author_Institution

Boston Univ., MA, USA

fYear

1988

fDate

29 Nov-2 Dec 1988

Firstpage

303

Lastpage

309

Abstract

Using prototype DGPS (differential Global Positioning System) modulator-demodulator hardware, a radio beacon was modified for interference testing of a representative set of manual and automatic direction finding units. DF (direction finding) bearing errors were recorded with and without the DGPS subcarrier, while subcarrier offset, data rate, and subcarrier power levels were varied. In a second test, DGPS channel bit error rates were studied using actual atmospheric noise and a prototype modulator-demodulator with error correction. Details of both testing efforts are given and test results are compared to previous theoretical analyses

Keywords

demodulators; electronic equipment testing; interference (signal); modulators; radio direction-finding; radionavigation; DGPS communications; bearing errors; differential Global Positioning System; direction finding units; error correction; interference testing; marine radiobeacons; modulator-demodulator; Bit error rate; Error correction; Error correction codes; Frequency; Global Positioning System; Interference; Radio navigation; Satellite broadcasting; Sea measurements; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Position Location and Navigation Symposium, 1988. Record. Navigation into the 21st Century. IEEE PLANS '88., IEEE

Conference_Location

Orlando, FL

Type

conf

DOI

10.1109/PLANS.1988.195498

Filename

195498