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- Title
EVALUATION OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SPACE SERVICE VOLUME (SSV) PERFORMANCE VIA TRIMBLE PLANNING.
- Authors
Sathyamoorthy, Dinesh; Amin, Zainal Fitry M.; Hassan, Shahrudin Abu
- Abstract
This study is aimed at evaluating Global Navigation Satellite System (GNSS) Space Service Volume (SSV) performance in terms of number of visible GNSS satellites. This study focuses on the two GNSS systems that currently have full operating capability (FOC), namely Global Positioning System (GPS) and Globalnaya Navigatsionnaya Sputnikovaya Sistema (GLONASS). The study is conducted using Trimble Planning, which is a mission planning tool used to predict GNSS coverage at a given location and time. It is observed that GPS and GLONASS can each provide continuous coverage for up to altitude of 8,000 km. Combined use of GPS and GLONASS allows for increased GNSS satellite availability at altitude of 8,000 km, and continuous coverage at altitude of 12,000 km. The availability then degrades with increasing altitude, due to increasingly poor GNSS satellite geometry. It is proposed that further studies be conducted via GNSS simulation, whereby the accuracy of GNSS readings at various altitudes can be measured.
- Subjects
GLOBAL Positioning System; SPACE vehicles; GEOSYNCHRONOUS orbits; ARTIFICIAL satellites in navigation
- Publication
Defence S&T Technical Bulletin, 2018, Vol 11, Issue 2, p202
- ISSN
1985-6571
- Publication type
Article