Characterisation of GNSS carrier phase data on a moving zero-baseline in urban and aerial navigation

Autor: Ankit Jain, Fabian Ruwisch, Steffen Schön
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