Phase modulated DGPS transmitter implemented with a clamped-mode resonant converter

Author

González, Sergio A. ; Valla, María Inés ; Muravchik, Carlos H.

Author_Institution

La Plata Nat. Univ., Argentina

Volume

40

Issue

3

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

919

Lastpage

928

Abstract

A clamped-mode resonant converter (CMRC) is proposed to be used as a transmitter which broadcasts correction signals in a differential Global Positioning System (DGPS). The digital information of the DGPS modulates the carrier with different modulation methods minimum shift keying (MSK) (recommended for the marine radiobeacon band), stepped binary phase shift keying (S-BPSK) and BPSK. The first two methods allow keeping the converter´s operation in soft switching mode. Extensive trials under impedance mismatch and modulation conditions confirm that the soft switching mode is preserved.

Keywords

Global Positioning System; convertors; minimum shift keying; phase modulation; power amplifiers; radio transmitters; BPSK; DGPS transmitter; S-BPSK; broadcasts correction signals; clamped-mode resonant converter; converter operation; digital information; global positioning system; impedance mismatch; marine radiobeacon band; minimum shift keying; modulation conditions; modulation methods; phase modulation; soft switching mode; stepped binary phase shift keying; Binary phase shift keying; Digital modulation; Global Positioning System; Phase modulation; Power harmonic filters; Radio broadcasting; Radio transmitters; Radiofrequency amplifiers; Resonance; Voltage;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2004.1337464

Filename

1337464