encomiast
发表于 2025-3-28 18:29:18
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Redundant
发表于 2025-3-28 22:15:09
Improved Parameter Estimation of Zenith Wet Delays Using an Inequality Constrained Least Squares Me affected by refractivity variations in the neutral atmosphere. This tropospheric delay, which represents a major contribution to the error budget of space geodetic observations, is generally considered by applying an adequate model (hydrostatic component) and by additionally estimating tropospheric
痛恨
发表于 2025-3-29 00:02:15
The Realization of a Semi-Kinematic Datum in Greece Including a New Velocity Model,nt network of the contemporary static Hellenic Terrestrial Reference System of 2007 (HTRS07), experience significant inhomogeneous ground displacements. As time passes, the distortion of both networks results in increasing degradation of positioning accuracy and datum stability. For these reasons th
phase-2-enzyme
发表于 2025-3-29 05:08:54
Simulated VLBI Satellite Tracking of the GNSS Constellation: Observing Strategies,rence frames (TRF). The high number of available satellites of Global Navigation Satellite Systems (GNSS) provides an attractive existing infrastructure that could be utilized for such observations. The Vienna VLBI Software (VieVS) was extended for the possibilities of scheduling, simulating, and pr
Glucocorticoids
发表于 2025-3-29 09:42:14
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贪心
发表于 2025-3-29 14:49:29
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bromide
发表于 2025-3-29 18:35:21
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Infantry
发表于 2025-3-29 21:48:59
Impact of Antenna Phase Centre Calibrations on Position Time Series: Preliminary Results,decade. The associated reduction of noise in derived position time series has revealed the presence of previously undetected periodic signals. It has been shown that these signals have frequencies related to the orbits of the GPS satellites. A number of potential sources for these periodicities at t
名字的误用
发表于 2025-3-30 02:18:54
Optimized Parameterization of VLBI Auxiliary Parameters in Least-Squares Adjustment: Preliminary Repriori values need to be estimated. A priori information used in Very Long Baseline Interferometry (VLBI) data analysis is additionally needed for modeling and constraining the auxiliary parameters, i.e. zenith wet delays, clocks, and troposphere gradients, in order to stabilize the parameter estima
不能妥协
发表于 2025-3-30 04:39:23
The Antarctic Regional GPS Network Densification: Status and Results, carried out since 1995. Based on the Bernese GNSS Software the latest analysis yields results for about 30 stations aligned to the terrestrial reference frame solution IGS08. The obtained station motions are discussed in the context of plate kinematics and glacial-isostatic adjustment. It is demons