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2017
Since its introduction in 1997, precise point positioning (PPP ) offers an attractive alternative to differential global navigation satellite system (GNSS ) positioning. The PPP approach uses undifferenced, dual-frequency, pseudorange and carrier-phase observations along with precise satellite orbit and clock products, for standalone static or ...
Jan Kouba +2 more
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Since its introduction in 1997, precise point positioning (PPP ) offers an attractive alternative to differential global navigation satellite system (GNSS ) positioning. The PPP approach uses undifferenced, dual-frequency, pseudorange and carrier-phase observations along with precise satellite orbit and clock products, for standalone static or ...
Jan Kouba +2 more
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Precise Point Positioning for Next-Generation GNSS
2020 European Navigation Conference (ENC), 2020Precise Point Positioning (PPP) provides accurate absolute position information without the direct need of measurements from a reference station at the user. The current challenge of GPS L1/L2-based PPP is its long convergence time of more than 20 minutes being caused by the need to estimate atmospheric parameters, and the relatively large code noise ...
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Recent Developments in Precise Point Positioning
GEOMATICA, 2012In standard Precise Point Positioning (PPP), the carrier phase ambiguities are estimated as real-valued constants, so that the carrier-phases can provide similar information as the pseudoranges. As a consequence, it can take tens of minutes to several hours for the ambiguities to converge to suitably precise values.
S. Bisnath, P. Collins
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Precision Onboard Navigation for LEO Satellite based on Precise Point Positioning
2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2020The PPP is a technique being actively researched and developed for estimating the precise position of a stationary point on the surface of the earth. Its particular features are that unlike the relative positioning method, the PPP does not require reference points and it provides the centimeter-level positioning accuracy in real-time using the precise ...
Masaya Murata, Isao Kawano, Koichi Inoue
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Smartphone Applications for Precise Point Positioning
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2017C.N.E.S., the French Space Agency, introduces two smartphone applications for Precise Point Positioning. The first application is a converter to RTCM format. It allows to send smartphone measurements (code, phase, Doppler) to a caster in the well-known RTCM standard.
Denis Laurichesse +3 more
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Precise Point-to-Point Positioning Control of Flexible Structures
Journal of Dynamic Systems, Measurement, and Control, 1990Control strategies to accomplish precise point-to-point positioning of flexible structures are discussed. First, the problem is formulated and solved in closed form using a linear quadratic optimal control technique for a simple system with only one rigid and one flexible mode; the resulting analytical solutions are examined in both the time and ...
S. P. Bhat, D. K. Miu
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On finding more precisely the position of points of a matrix spectrum
USSR Computational Mathematics and Mathematical Physics, 1967Abstract IN this note we consider a region consisting of circles which, when intersected by a Gershgorin region, enables us to determine more precisely the position of the characteristic numbers of a wide class of matrices.
Dashnits, L. S., Zusmamovich, M. S.
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Precise point positioning degradation in the presence of a SITEC
2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC), 2015The ionosphere is one of the main contributors to errors in the GNSS satellite-receiver ranging. In dual frequency precise point positioning (PPP) ionospheric effect may be reduced by means of the ionospheric-free linear combination (Zumberge et al., J. Geophys. Res. 102 (B3), 1997, pp. 5005–5017).
I. Rodríguez-Bilbao +3 more
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Frequency transfer using precise point positioning
18th European Frequency and Time Forum (EFTF 2004), 2004Using precise point positioning (PPP) we show the potential for comparing frequency standards with time stabilities of under 300 ps in flicker phase noise for time periods of 1 to 10 d. This leads to comparisons at 1 part in 1015 or better at 10 d. We compare short baseline PPP results with 2 hour data from the NIST Measurements System.
M. Weiss +3 more
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Performance Evaluation of Galileo Precise Point Positioning
2019Galileo Satellite Navigation System has been put into trial operation at the end of 2016. Whether Galileo Satellite Navigation System can be used independently for navigation and positioning needs to be analyzed and evaluated because it is not yet in full constellation, especially the performance of Galileo Precision Point Positioning is worth studying.
Zongpeng Pan +5 more
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