Highly-accurate real-time syntonization using a GPS single-frequency receiver with an intelligent atmosphere forecasting model

Author

Cheng, C.L. ; Chang, F.R. ; Wang, L.S. ; Tu, K.Y.

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2004

fDate

23-27 Aug. 2004

Firstpage

527

Lastpage

535

Abstract

A low-cost, highly-accurate real-time GPS carrier phase frequency syntonization system based on a single-frequency receiver is presented. By using the atmosphere free model of the carrier phase with the neural-wavelet filter, and performing the time-difference operation, the low-cost oscillator can be automatically steered to obtain very high frequency accuracy and stability in the short term (1 sec.) as well as in the long term (1 day).

Keywords

Global Positioning System; atmospheric techniques; digital filters; forecasting theory; frequency stability; neural nets; oscillators; radio receivers; wavelet transforms; 1 day; 1 s; GPS single-frequency receiver; accuracy; atmosphere free model; carrier phase frequency syntonization; highly accurate real-time syntonization; intelligent atmosphere forecasting model; low-cost oscillator; neural-wavelet filter; stability; time-difference operation; Atmosphere; Atmospheric modeling; Clocks; Frequency estimation; Global Positioning System; Neural networks; Oscillators; Power system stability; Predictive models; Real time systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and Exposition, 2004. Proceedings of the 2004 IEEE International

ISSN

1075-6787

Print_ISBN

0-7803-8414-8

Type

conf

DOI

10.1109/FREQ.2004.1418513

Filename

1418513