Clock synchronization by means of GPSIGLONASS is proposed. The GPSIGLONASS receivers with the external frequency input interface are used in our system. While the remote OCXO (OvenControlled Crystal Oscillator) clock and the primary H-maser clock are connected to the receivers, the frequency o s e t of the remote clock with respect to the primary clock can be estimated by performing the linear-...

EGNOS the European complement to the GPS and GLONASS systems is operating navigation payloads flown on geostationary satellites. Its role is to augment the performance of the GPS and GLONASS systems by improving their service integrity and the accuracy of their measurements. These two systems were originally designed for military purposes and their services were subsequently offered to civilian...

We estimate spatial gradients in the ionosphere using the Global Positioning System (GPS) and GLONASS (Russian global navigation system) observations, utilising data from multiple GPS stations in the vicinity of Murchison Radio-astronomy Observatory (MRO). In previous work the ionosphere was characterised using a single-station to model the ionosphere as a single layer of fixed height and this ...

Astronomers use the 1612 MHz OH spectral line emission as a unique window on properties of evolved stars, galactic dynamics, and putative proto-planetary disk systems around young stars. In recent years, experiments using this OH line have become more difficult because radio telescopes are very sensitive to transmissions from the GLONASS satellite system. The weak astronomical signals are often...

Astronomers use the 1612 MHz OH spectral line emission as a unique window on properties of evolved stars, galactic dynamics, and putative proto-planetary disk systems around young stars. In recent years, experiments using this OH line have become more difficult because radio telescopes are very sensitive to transmissions from the GLONASS satellite system. The weak astronomical signals are often...

This paper introduces the special effects of the new developed Regional Satellite Augmentation System (RSAS) as an integration component of the Global Satellite Augmentation System (GSAS) employing current and new Satellite Communications, Navigation and Surveillance (CNS) for improving Air Traffic Control (ATC) and Air Traffic Management and of GPS or GLONASS and enhancement of safety and emer...

Küresel konumlama çalışmalarında GPS, GLONASS, Galileo, BeiDou, bölgesel olarak ise IRNSS ve QZSS kullanılmaktadır. Yakın zamana kadar nokta konumları GPS BeiDou uydu sistemleri kullanılarak belirlenmiştir. 2020 yılından itibaren Galileo sistemi de kullanılmaya başlanmıştır. GNSS ile konumlarının belirlenmesindeki doğruluk kullanılan sistemine, değerlendirme yazılımına, veri toplama süresine/ka...