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Enhanced troposphere delay model for SLR [PDF]

Geophysical Research Abstracts, 2019
The currently recommended troposphere delay model for Satellite laser ranging (SLR) assumes a full symmetry of the atmosphere above stations. The microwave-based techniques of space geodesy contributing to the realizations of the international reference frames, i.e.
Drożdżewski, M., Sośnica, K., Zus, F., Balidakis, K.   +3 more
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Modelling of tropospheric delays in geosynchronous synthetic aperture radar

Science China Information Sciences, 2017
As a direct consequence of the orbital height, the integration time in geosynchronous synthetic aperture radar (GEO SAR) with metric or decimetric azimuth resolutions is in the order of several hundreds or even thousands of seconds. With such long integration time, the compensation of residual tropospheric propagation terms poses one of the fundamental
Li, Dexin, Rodriguez-Cassola, Marc, Prats, Pau, Dong, Zhen, Wu, Manqing, Moreira, Alberto   +5 more
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Comparison of retrieval algorithms for the wet tropospheric path delay

2014 13th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014
This paper provides a comparative analysis of statistical algorithms for the retrieval of the wet tropospheric correction from microwave radiometers in the context of altimetry missions. The algorithms are based on the algorithms used in Envisat and Jason-1 missions.
Thao, Soulivanh, Obligis, Estelle, Picard, Bruno, Frery, Marie-Laure, Eymard, Laurence   +4 more
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Refined Tropospheric Delay Models for CONT11

2015
For the period of CONT11, a continuous VLBI campaign which lasted from September 15 through September 29, 2011, new a coefficients for the Vienna Mapping Functions 1 (VMF1; Bohm et al., J Geophys Res 111:B02406, 2006) and an extended calculation strategy for horizontal gradients were applied.
D. Landskron, A. Hofmeister, J. Böhm
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Comparison of Ray-Tracing Packages for Troposphere Delays

IEEE Transactions on Geoscience and Remote Sensing, 2012
A comparison campaign to evaluate and compare troposphere delays from different ray-tracing software was carried out under the umbrella of the International Association of Geodesy Working Group 4.3.3 in the first half of 2010 with five institutions participating: the GFZ German Research Centre for Geosciences (GFZ), the Groupe de Recherche de Geodesie ...
Vahab Nafisi, Landon Urquhart, Marcelo C. Santos, Felipe G. Nievinski, Johannes Böhm, Dudy D. Wijaya, Harald Schuh, Alireza Azmoudeh Ardalan, Thomas Hobiger, Ryuichi Ichikawa, Florian Zus, Jens Wickert, Pascal Gegout   +12 more
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Estimation of Tropospheric Delay Models Compliance

2008
Tropospheric delay can be a significant source of error for satellite-based positioning systems, if it is not properly estimated. Two basic types of delay prediction models exist. The first use surface meteorological parameters to estimate the magnitude of the tropospheric delay, and the other global models use average and seasonal variation data.
Kos, Tomislav, Botinčan, Maja, Markežić, Ivan   +2 more
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Evaluation of Different Tropospheric Delay Models

2008
Tropospheric delay can be a signifi cant source of error in satellite-based positioning systems. Two basic types of delay prediction models exist, the first using surface meteorological parameters to estimate the magnitude of the tropospheric delay, and the other global models using average and seasonal variation data.
Kos, Tomislav, Markežić, Ivan, Botinčan, Maja   +2 more
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Estimation of tropospheric time delay for Indian LAAS

2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT), 2013
In LAAS with airport pseudolites (APLs), error introduced in the signals due to tropospheric time delay proves to be the largest in pseudolite error budget. In this paper, tropospheric delay (TD) is estimated using Hopfield model and RTCA model for a typical LAAS scenario. Hopfield model is used to estimate delay in GPS signal and RTCA model is used to
Q. Sultana, A. D. Sarma, M. Q. Javeed
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Analysis of Regional Distribution and Change of Tropospheric Delay

Applied Mechanics and Materials, 2014
In this article, data of stations distributed over China was used to calculate tropospheric delay. The result was compared with the tropospheric zenith delay calculated from model. The rules and Characteristic of tropospheric delay over China was analyzed from the aspect of altitude, climate, and change.
Hai Shen Wang, Chuang Shi, Yun Chang Cao
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Fast tropospheric delay predictions for antenna height diversity

IEEE Transactions on Communications, 1997
Terrestrial microwave links sometimes suffer from signal fading which may be relieved with antenna diversity or frequency diversity. Vertical spacing of the antennas has been known empirically to offer performance gains for many links. A fast new method for tropospheric delay predictions is discussed. It uses Mathematica for critical functional fits to
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