Earth orientation parameters from VLBI determined with a Kalman filter
Geodesy and Geodynamics, 2017 This paper introduces the reader to our Kalman filter developed for geodetic VLBI (very long baseline interferometry) data analysis. The focus lies on the EOP (Earth Orientation Parameter) determination based on the Continuous VLBI Campaign 2014 (CONT14)
Maria Karbon +5 more
doaj +1 more source
Analysis and combination of four technique-individual EOP time series
Geodesy and Geodynamics, 2019 Based on four intra-technique combined solutions in SINEX format, we tried at first to assess the accuracy of each single-technique Earth Orientation Parameters (EOPs) series over a past time interval of at least15 years by comparison with IERS EOP 08C04
Lizhen Lian, Jiexian Wang, Chengli Huang
doaj +1 more source
Data analysis of gravitational-wave signals from spinning neutron stars. IV. An all-sky search [PDF]
, 2000 We develop a set of data analysis tools for a realistic all-sky search for continuous gravitational-wave signals. The methods that we present apply to data from both the resonant bar detectors that are currently in operation and the laser interferometric
Andrzej Królak +17 more
core +2 more sources
Impact of reference EOP time series on EOP prediction evaluation
Earth, Planets and SpaceThis study evaluates the impact of different reference time series on the prediction of various Earth orientation parameters (EOP), namely, x and y pole coordinates, and the difference between Universal Time and Coordinated Universal Time (UT1–UTC).
Aleksander Partyka +4 more
doaj +1 more source
Barycentric Corrections at 1 cm/s for precise Doppler velocities
, 2014 The goal of this paper is to establish the requirements of a barycentric correction with an RMS of $\lesssim 1$ cm/s, which is an order of magnitude better than necessary for the Doppler detection of true Earth analogs ($\sim9$ cm/s).
Eastman, J. D., Wright, J. T.
core +1 more source
Research and Design of BPM Shortwave Time Signal Modulation Technology Based on Chirp
Remote SensingThe shortwave time service system is a vital land-based wireless time service solution, serving as a supplement and backup to the global navigation satellite system. It ensures that time users can access reliable timings, especially in extreme situations.
Jiangbin Yuan +7 more
doaj +1 more source
Determination of intercontinental baselines and Earth orientation using VLBI [PDF]
A series of experiments was conducted during the last decade to explore the capability of very long baseline interferometry (VLBI) to measure the crustal and rotational motions of the Earth with accuracies at the centimeter level.
Fanselow, J. L. +4 more
core +1 more source
Space–Ground Joint Support Method in Autonomous Orbit Determination of BeiDou Satellites
Remote SensingWhen relying exclusively on inter-satellite links for autonomous orbit determination, it cannot suppress or eliminate the constellation overall rotation, rendering it incapable of determining its spatial orientation relative to terrestrial and celestial ...
Xiaojie Li +10 more
doaj +1 more source
Determination of Earth orientation using the Global Positioning System [PDF]
Modern spacecraft tracking and navigation require highly accurate Earth-orientation parameters. For near-real-time applications, errors in these quantities and their extrapolated values are a significant error source.
Freedman, A. P.
core +1 more source
Rotation of the earth and polar motion, services [PDF]
The services providing polar motion and universal time data are described.
Guinot, B.
core +1 more source