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Recent Posts

A Study of α-β Filter from Kalman Filter Point
A Novel and Simplest Derivation of Measurement Update Equations in the Kalman Filter (Version 2)
An open source A-GNSS reference server
A Guide to Using International GNSS Service (IGS) Products
GNSS Software Receiver for UAVs
Space Situational Awareness 2015: GPS Applications in Space
Introduction to GPS and other Global Navigation Satellite Systems
The GALILEO Test Range (GTR): status and evolution perspectives for next development phase
Indoor Positioning Technologies
Galileo Science Opportunity Document
Development of a Spaceborne Hydrogen Maser Atomic Clock for Quasi-Zenith Satellite
Mobile Mapping System – Mitsubishi Electric
UN Education Curriculum – Global Navigation Satellite Systems
Global Navigation Satellite System (GNSS)
THE LORAN-C SYSTEM OF NAVIGATION
THE LORAN SYSTEM
eLORAN – The Future of resilient PNT
The ITRF/Galileo interface
Terrestrial reference systems and frames
The International Terrestrial Reference Frame: current status and future challenges

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