Characterisation of GNSS carrier phase data on a moving zero-baseline in urban and aerial navigation
Autor: | Ankit Jain, Fabian Ruwisch, Steffen Schön |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
010504 meteorology & atmospheric sciences
0211 other engineering and technologies diffraction Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau 02 engineering and technology lcsh:Chemical technology Diffraction effects 01 natural sciences Biochemistry Analytical Chemistry Geodetic satellites Galileo (satellite navigation) Double difference lcsh:TP1-1185 High-sensitivity receivers Instrumentation stochastic model Double differences Carrier-phase observations article Geodetic datum Flight experiments Atomic and Molecular Physics and Optics Navigation Relative positioning Global Positioning System symbols GLONASS Exponential models ddc:620 Noise (radio) Multipath propagation Geodesy noise Air navigation Communication satellites Carrier phase data Global Navigation Satellite Systems Kinematic terrestrial and flight experiment symbols.namesake global positioning system Global Navigation Satellite System (GNSS) Electrical and Electronic Engineering 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing business.industry Elevation Geodetic and high sensitivity GNSS receivers Stochastic models GNSS applications Environmental science Antennas business |
Zdroj: | Sensors Volume 20 Issue 14 Sensors 20 (2020), Nr. 14 Sensors (Basel, Switzerland) Sensors, Vol 20, Iss 4046, p 4046 (2020) |
DOI: | 10.15488/10795 |
Popis: | We present analyses of Global Navigation Satellite System (GNSS) carrier phase observations in multiple kinematic scenarios for different receiver types. Multi-GNSS observations are recorded on high sensitivity and geodetic-grade receivers operating on a moving zero-baseline by conducting terrestrial urban and aerial flight experiments. The captured data is post-processed carrier phase residuals are computed using the double difference (DD) concept. The estimated noise levels of carrier phases are analysed with respect to different parameters. We find DD noise levels for L1 carrier phase observations in the range of 1.4&ndash 2 mm (GPS, Global Positioning System), 2.8&ndash 4.6 mm (GLONASS, Global Navigation Satellite System), and 1.5&ndash 1.7 mm (Galileo) for geodetic receiver pairs. The noise level for high sensitivity receivers is at least higher by a factor of 2. For satellites elevating above 30 ∘ , the dominant noise process is white phase noise. For the flight experiment, the elevation dependency of the noise is well described by the exponential model, while for the terrestrial urban experiment, multipath and diffraction effects overlay hence no elevation dependency is found. For both experiments, a carrier-to-noise density ratio (C/N 0 ) dependency for carrier phase DDs of GPS and Galileo is clearly visible with geodetic-grade receivers. In addition, C/N 0 dependency is also visible for carrier phase DDs of GLONASS with geodetic-grade receivers for the terrestrial urban experiment. |
Databáze: | OpenAIRE |
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