Title :
Pseudolite: ground-based transmitter for GPS - design and implementation
Author :
Zandonadi, Durval, Jr. ; Walter, Fernando
Author_Institution :
Laboratorio de Integracao e Testes, Instituto Nacional de Pesquisas Espaciais, Sao Jose de Campos, Brazil
Abstract :
The design and details of construction of a Pseudolite (PL) is described. The PL corresponds to a GPS transmitter that operates at 1575.42 MHz and is based on the ground. The RF stage includes a programmable synthesizer, a BPSK modulator, SAW band-pass filters, a linear variable gain amplifier and passive SMD components. All the active circuits are monolithic microwave integrated circuits (MMICs). The substrate is a 0.8 mm thickness two layers FR-4.
Keywords :
Global Positioning System; MMIC; UHF amplifiers; band-pass filters; differential phase shift keying; frequency synthesizers; modulators; radio transmitters; surface acoustic wave filters; surface mount technology; 0.8 mm; 1575.42 MHz; BPSK modulator; FR-4 substrate; GBAS; Global Positioning System; MMIC; Pseudolite ground-based GPS transmitter; SAW band-pass filters; ground based augmentation system; linear variable gain amplifier; monolithic microwave integrated circuits; passive SMD components; programmable RF synthesizer; Band pass filters; Binary phase shift keying; Gain; Global Positioning System; MMICs; Modulation coding; Radio frequency; Surface acoustic waves; Synthesizers; Transmitters;
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
DOI :
10.1109/IMOC.2003.1242686
