Results 21 to 30 of about 6,531,643 (307)
GNSS Precise Relative Positioning Using A Priori Relative Position in a GNSS Harsh Environment [PDF]
Sensors, 2021 To enable Global Navigation Satellite System (GNSS)-based precise relative positioning, real-time kinematic (RTK) systems have been widely used. However, an RTK system often suffers from a wrong integer ambiguity fix in the GNSS carrier phase measurements and may take a long initialization time over several minutes, particularly when the number of ...
openaire +3 more sources
Sensors, 2021 The inter-satellite relative navigation method—based on radio frequency (RF) range and angle measurements—offers good autonomy and high precision, and has been successfully applied to two-satellite formation missions.
Shiming Mo +5 more
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Precise Point Positioning Technique Versus Relative Positioning
Baltic Surveying, 2020 Precise point positioning is a GNSS based positioning method that is known to regaining more precise information about major systematical errors in its functional model. This method is seen as an advanced version of the conventional absolute positioning method that is able to offer higher accuracy of the estimate parameter.
Stepan Savchuk +2 more
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Design and Development of Array POS for Airborne Remote Sensing Motion Compensation
Remote Sensing, 2022 Multi-antenna airborne remote sensing systems have received more attention recently because they can realize high-resolution three-dimensional (3-D) imaging, such as array Synthetic Aperture Radar (SAR).
Chunyu Qu +3 more
doaj +1 more source
Forbidden M1 and E2 transitions in monovalent atoms and ions [PDF]
, 2017 We carried out a systematic high-precision relativistic study of the forbidden magnetic-dipole and electric-quadrupole transitions in Ca+, Rb, Sr+, Cs, Ba+, Fr, Ra+, Ac2+, and Th3+.
Johnson, W. R. +2 more
core +3 more sources
Distributed quantum sensing enhanced by continuous-variable error correction [PDF]
, 2020 A distributed sensing protocol uses a network of local sensing nodes to estimate a global feature of the network, such as a weighted average of locally detectable parameters.
Jiang, Liang +2 more
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Precise relative earthquake location using surface waves [PDF]
Journal of Geophysical Research: Solid Earth, 2013 AbstractEarthquake locations provide a fundamental tool for seismological investigations. While dense seismic networks can provide robust locations, accuracy and precision of these locations suffer outside dense networks. This is particularly true in offshore areas, where location analysis relies heavily on distant seismic observations.
K. Michael Cleveland, Charles J. Ammon
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Precision of methods for calculating identity-by-descent matrices using multiple markers
Genetics Selection Evolution, 2002 A rapid, deterministic method (DET) based on a recursive algorithm and a stochastic method based on Markov Chain Monte Carlo (MCMC) for calculating identity-by-descent (IBD) matrices conditional on multiple markers were compared using stochastic ...
Sørensen Anders +3 more
doaj +1 more source
Advanced Theory and Simulations, 2019 A systematic and statistically robust protocol is applied for the evaluation of free energy calculations with and without replica‐exchange. The protocol is based on ensemble averaging to generate accurate assessments of the uncertainties in the ...
S. Wan +4 more
semanticscholar +1 more source
Precision Astrometry of a Sample of Speckle Binaries and Multiples with the Adaptive Optics Facilities at the Hale and Keck II Telescopes [PDF]
, 2009 Using the adaptive optics facilities at the 200-in Hale and 10-m Keck II, we observed in the near infrared a sample of 12 binary and multiple stars and one open cluster. We used the near diffraction limited images of these systems to measure the relative
Al-Shukri +50 more
core +2 more sources