C/A-code dual frequency surveying receiver-architecture and performance

Author

Allison, Timo ; Eschenback, R. ; Hyatt, Ron ; Westfall, Brian

Author_Institution

Trimble Navigation Ltd., Sunnyvale, CA, USA

fYear

1988

fDate

29 Nov-2 Dec 1988

Firstpage

434

Lastpage

441

Abstract

A C/A-code-only receiver (Model 4000SD) is described in which L2 (1227MHz) acquisition and tracking is possible through use of the L1 (1575MHz) code-correlating channels. The architecture and advantages of this approach are discussed. A production version of this receiver containing ten parallel channels (five L1 and five L2, or ten L1 only) was used to obtain results for short and long baselines. Comparisons are made between baseline results obtained by postprocessing L1 data only, L2 data only, and combined L1/L2 data. The 4000SD receiver was shown to be capable of making high-accuracy L2 carrier phase measurements by comparison of L1-only and L2-only postprocessing solutions for a 6-km baseline

Keywords

radionavigation; receivers; 1227 MHz; 1575 MHz; C/A-code-only receiver; GPS; Model 4000SD; acquisition; channels; code-correlating channels; radionavigation; tracking; Binary phase shift keying; Cryptography; Frequency; Global Positioning System; Modulation coding; Navigation; Phase locked loops; Phase measurement; Phase modulation; Signal processing;

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.1988.195516

Filename

195516