A novel PPP Disciplined Oscillator

A novel PPP Disciplined Oscillator demonstrating Modified Allan Deviation below 10^{-13} at tau 200 seconds, and 8x10^{-15} at tau 10 000 seconds is presented. The local oscillator is disciplined based on the differenced clock bias estimates from two separate RTKLIB instances, one processing GPS obs...

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Bibliographic Details
Main Authors: Ronningen, Ole Petter, Danielson, Magnus
Format: Conference Proceeding
Language:English
Subjects:
Clocks
Disciplined Oscillator
Global Positioning System
Oscillators
PPP
Real time PPP
Real-time systems
Receivers
Stability analysis
Thermal stability
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Summary:A novel PPP Disciplined Oscillator demonstrating Modified Allan Deviation below 10^{-13} at tau 200 seconds, and 8x10^{-15} at tau 10 000 seconds is presented. The local oscillator is disciplined based on the differenced clock bias estimates from two separate RTKLIB instances, one processing GPS observations from a remote receiver clocked by a reference H-maser, and the other from a local receiver clocked by the disciplined oscillator. Real time clock and orbit corrections are used for the PPP processing. Our results demonstrate how the open availability of real time GNSS corrections enables low cost time/frequency distribution with a stability surpassing high-performance industrial cesium clocks. The experimental setup is described, and results are presented from a zero baseline common clock, a zero baseline and a long baseline test. 1
ISSN:2327-1949
DOI:10.1109/FCS.2019.8856034