Recently added articles from International Journal of Navigation and Observation:
Diophantine frequency synthesizer design for timekeeping systems.(Technical report)
Jan 01, 2008; ... Abstract--Diophantine Frequency Synthesis (DFS), a number theoretic approach to the design of very high resolution frequency synthesizers was introduced in 2006. Further work in concern for the impact of controlling mixing products for high spectral purity was addressed and reported at the ...
Identifying nonstationary clock noises in navigation systems.(Technical report)
Jan 01, 2008; ... Abstract The stability of the atomic clocks on board the satellites of a navigation system should remain constant with time. In reality there are numerous physical phenomena that make the behavior of the clocks a function of time, and for this reason we have recently introduced ...
Precise Point Positioning for TAI computation.(International Atomic Time)(Technical report)
Jan 01, 2008; ... Abstract--We discuss the use of some new time transfer techniques for computing TAI time links. Precise Point Positioning (PPP) uses GPS dual frequency carrier phase and code measurements to compute the link between a local clock and a reference time scale with the precision of the carrier ...
GPS composite clock analysis.(Research Article)(global positioning system)(Technical report)
Jan 01, 2008; ... The GPS composite clock defines GPS time, the timescale used today in GPS operations. GPS time is illuminated by examination of its role in the complete estimation and control problem relative to UTC/TAI. The phase of each GPS clock is unobservable from GPS pseudorange measurements, and ...
Remote synchronization simulation of onboard crystal oscillator for QZSS using L1/L2/L5 signals for error adjustment.(Research Article)(Technical report)
Jan 01, 2008; ... A new error adjustment method for remote synchronization of the onboard crystal oscillator for the quasi-zenith satellite system (QZSS) using three different frequency positioning signals (L1/L2/L5) is proposed. The error adjustment method that uses L1/L2 positioning signals was ...