Descripteur
Documents disponibles dans cette catégorie (200)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
A first look at the effects of ionospheric signal bending on a globally processed GPS network / E. Petrie in Journal of geodesy, vol 84 n° 8 (August 2010)
[article]
Titre : A first look at the effects of ionospheric signal bending on a globally processed GPS network Type de document : Article/Communication Auteurs : E. Petrie, Auteur ; M. King, Auteur ; P. Moore, Auteur ; David Lavallée, Auteur Année de publication : 2010 Article en page(s) : pp 491 - 499 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement du signal
[Termes IGN] atténuation du signal
[Termes IGN] correction ionosphérique
[Termes IGN] propagation ionosphérique
[Termes IGN] réfraction atmosphérique
[Termes IGN] retard troposphérique zénithal
[Termes IGN] signal GPSRésumé : (Auteur) This study provides a first attempt at quantifying potential signal bending effects on the GPS reference frame, coordinates and zenith tropospheric delays (ZTDs). To do this, we homogeneously reanalysed data from a global network of GPS sites spanning 14 years (1995.0–2009.0). Satellite, Earth orientation, tropospheric and ground station coordinate parameters were all estimated. We tested the effect of geometric bending and dTEC bending corrections, which were modelled at the observation level based, in part, on parameters from the International Reference Ionosphere 2007 model. Combined, the two bending corrections appear to have a minimal effect on site coordinates and ZTDs except for low latitude sites. Considering five days (DOY 301–305, 28 October–1 November 2001) near ionospheric maximum in detail, they affect mean ZTDs by up to ~1.7 mm at low latitudes, reducing to negligible levels at high latitudes. Examining the effect on coordinates in terms of power-spectra revealed the difference to be almost entirely white noise, with noise amplitude ranging from 0.3 mm (high latitudes) to 2.4 mm (low latitudes). The limited effect on station coordinates is probably due to the similarity in the elevation dependence of the bending term with that of tropospheric mapping functions. The smoothed z-translation from the GPS reference frame to ITRF2005 changes by less than 2 mm, though the effect combines positively with that from the second order ionospheric refractive index term. We conclude that, at the present time, and for most practical purposes, the geometric and dTEC bending corrections are probably negligible at current GPS/reference frame precisions. Numéro de notice : A2010-440 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-010-0386-2 Date de publication en ligne : 01/06/2010 En ligne : https://doi.org/10.1007/s00190-010-0386-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30633
in Journal of geodesy > vol 84 n° 8 (August 2010) . - pp 491 - 499[article]Réservation
Réserver ce documentExemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 266-2010081 SL Revue Centre de documentation Revues en salle Disponible
Titre : High-resolution GPS tomography in view of hydrological hazard assessment Type de document : Thèse/HDR Auteurs : Simon Lutz, Auteur Editeur : Zurich : Schweizerischen Geodatischen Kommission / Commission Géodésique Suisse Année de publication : 2009 Collection : Geodätisch-Geophysikalische Arbeiten in der Schweiz, ISSN 0257-1722 num. 76 Importance : 200 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-908440-20-8 Note générale : Bibliographie
Doctoral thesisLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] aérosol
[Termes IGN] atmosphère terrestre
[Termes IGN] Bernese
[Termes IGN] campagne d'expérimentation
[Termes IGN] collocation
[Termes IGN] distribution spatiale
[Termes IGN] double différence
[Termes IGN] interpolation spatiale
[Termes IGN] météorologie
[Termes IGN] méthode des moindres carrés
[Termes IGN] modèle atmosphérique
[Termes IGN] prévision météorologique
[Termes IGN] propagation troposphérique
[Termes IGN] réfraction atmosphérique
[Termes IGN] risque naturel
[Termes IGN] temps réel
[Termes IGN] teneur en vapeur d'eau
[Termes IGN] tomographie
[Termes IGN] traitement de données GNSS
[Termes IGN] Valais (Suisse)
[Termes IGN] vapeur d'eau
[Termes IGN] voxelIndex. décimale : 30.83 Applications océanographiques de géodésie spatiale Résumé : (Auteur) In the last few years, the use of propagation delays of GNSS radio signals due to the atmospheric effect has gained considerable importance as a valuable contribution to numerical weather forecasting. GPS-based tomography is a dedicated method to resolve the temporal variation and spatial distribution of the most important constituent of the atmosphere, the tropospheric water vapor. The four-dimensional tomographic approach, however, has not yet been completely established. Investigations on the small-scale high-resolution configuration will now help to determine and model water vapor distribution and variation over local, mountainous catchment areas. Especially, the development towards near real-time analysis with a high update rate of less than one hour will reveal the potential in the field of short and medium range forecasts.
Three main objectives were defined for this research project: The first objective was the study of the feasibility of GPS tomography in a small-scale and Alpine area. Furthermore, the processing of campaign-type measurements had to be considered specifically. The second aim was the determination of the four-dimensional distribution of atmospheric water vapor over a local region using GPS tomography in view of hydrological hazard assessment. Thirdly, aspects of real-time determination had to be investigated. In this context, it had to be accounted for that, instead of precise GNSS satellite orbits, predicted ones like broadcast ephemerides or ultra-rapid orbits had to be used. Also, it had to be addressed that the processing time is a critical issue in real-time computation. As a consequence, the parameters of the complete GPS processing were refined and adapted to near real-time applications. Furthermore, new algorithms in the tomographic software were to be designed and evaluated.
The tomographic software package AWATOS (Atmospheric Water Vapor Tomography Software), developed at the Geodesy and Geodynamics Laboratory, ETH Zurich, was used for the assimilation of double-differenced GPS observations and interpolated meteorological data sets. The spatial distribution of water vapor can be determined by least-squares inversion with a high temporal resolution.
The work was carried out in five steps: Simulations helped to design an optimal GPS network for the tomographic purpose. Based on these findings, two dedicated field campaigns were performed to study the feasibility of the method for a non-permanent densification network in an Alpine region in Switzerland. Secondly, GPS derived zenith total delays (ZTD) as well as double-differenced residuals were estimated using a high performance and high accuracy post-processing software package (Bernese GPS Software Version 5.0). The results were validated by comparison with independent methods. With the software package COMEDIE, meteorological data was collocated and interpolated for the separation of the total delays into a wet and a dry part. In the third step, this set of data was processed with the GPS tomography software package AWATOS to obtain spatially and temporally highly-resolved wet refractivity fields. An automatic generation of tomographic voxel models was developed in the forth step. This tool allows high flexibility in tomographic processing and forms a fundamental part of an adaptive method of choosing voxel models at a particular spatial resolution. In the fifth step, the aspects of near real-time processing were investigated.
Measurements from a solar spectrometer and data from the current numerical weather model COSMO-7 of MeteoSwiss were available for comparison purposes. During the campaigns, radiosondes were launched to measure vertical profiles of the tropospheric meteorological components in situ and to validate the tomographic results.
The success of the tomographic method was revealed by the statistical analyses. The wet refractivity profiles from the GPS tomography software package AWATOS in the high-resolution mode match the profiles derived from corresponding radiosonde measurements within 10 ppm (refractivity units). The AWATOS profiles represent the characteristics of the different tropospheric layers in most cases with high significance.
The accuracy of GPS tomography in near real-time was assessed based on dedicated case studies with real-time orbits. The error budget of the near real-time calculations was compared to the best postprocessing solutions available. Due to large variations in the time series of the Up component of the GPS coordinate estimation, the broadcast ephemerides are not recommended for GPS meteorological applications. But ultra-rapid orbits, which are also available in real-time, yield satisfying results regarding tropospheric parameter estimation (ZTD) and the high-resolution GPS tomographic analysis.Note de contenu : 1 Introduction
1.1 Trends in GPS meteorology
1.2 Research review of atmospheric water vapor profiling
1.3 Significance of high-resolution GPS tomography
1.3.1 For the research community
1.3.2 For practical applications
1.4 Objectives
1.5 Structure
2 Theoretical background of GPS meteorology
2.1 Atmospheric water vapor
2.2 Radio wave refractivity
2.3 Refraction and path delay modeling
2.3.1 Definition
2.3.2 The Saastamoinen formula
2.3.3 Integrating tropospheric refractivity
2.3.4 Path delay interpolation with COITROPA
2.4 The Global Positioning System (GPS)
2.4.1 Introduction to GPS
2.4.2 The GPS observation equations
2.4.3 Mapping functions and standard models
2.4.4 Troposphere modeling in the Bernese GPS Software
2.5 The software package COMEDIE
2.5.1 4-D refractivity field from meteorological data
2.5.2 Estimation of tropospheric path delays
3 Ground-based GPS tomography of the neutral atmosphere
3.1 Models, methods and algorithms
3.1.1 The tomographic voxel model
3.1.2 The apriori model .
3.1.3 Inter-voxel constraints
3.1.4 Separation of the total path delay
3.2 The software package AWATOS
3.2.1 Double-difference GPS tomography
3.2.2 The tomographic equation system
3.2.3 Ray tracing and the design matrix
3.2.4 (Pscudo-) Observations and the weight matrix
3.2.5 Error budget
3.3 Network analysis tool
4 Outline of the two field campaigns
4.1 Introduction
4.2 The project area in the canton of Valais (Switzerland)
4.3 The July 2005 field campaign
4.3.1 GPS network
4.3.2 Meteorological ground measurement network
4.3.3 Radiosondes
4.4 The October 2005 field campaign
4.4.1 GPS Network
4.4.2 Meteorological ground measurement network
4.4.3 Radiosondes
4.4.4 Solar Spectrometry for comparison purpose
5 Data preprocessing
5.1 Introduction
5.2 GPS data processing
5.2.1 Overview
5.2.2 Criteria for fix station selection
5.2.3 Parameter settings in the Bernese GPS Software
5.2.4 Network solutions
5.2.5 Section summary
5.3 Meteorological data processing
5.4 Path delay comparison
6 The numerical weather model COSMO-7
6.1 Model description
6.2 Distribution of the available data
6.3 Data processing workflow
6.4 Data analysis
6.4.1 Comparison with balloon sounding profiles
6.4.2 Time series of integrated path delays
6.4.3 Comparison with time series of hourly GPS-ZTD
6.4.4 ZTD comparison with rainfall data
7 Enhancements of AWATOS
7.1 Introduction
7.2 New models and algorithms
7.2.1 Designing the voxel model
7.2.2 Obtaining a priori information
7.2.3 Allocation of meteorological data
7.2.4 Selection of beneficial stations
7.3 Further analysis tools
7.4 Notes on near real-tirnc analysis and predictive algorithms
7.5 Accuracy and reliability assessment
8 Results and discussion
8.1 Towards high spatial resolution
8.1.1 Impact of vertical spacing
8.1.2 Vertical resolution and cutoff elevation angle
8.1.3 Impact of horizontal spacing
8.1.4 Summary on the July 2005 campaign data
8.1.5 Summary on the October 2005 campaign data
8.1.6 Impact of a reduced network in October 2005
8.1.7 Discussion on spatial resolution
8.2 Correlation analysis with meteorological surface data
8.2.1 Comparison with air temperature
8.2.2 Wet refractivity variation and sunshine duration
8.2.3 Dew point temperature and atmospheric water vapor
8.3 Aspects of changing temporal resolution
8.4 Investigations in near real-time analysis
8.4.1 Processing real-time GPS orbits
8.4.2 Examination of time correlation strategies
9 ConclusionsNuméro de notice : 15512 Affiliation des auteurs : non IGN Autre URL associée : URL ETH Zurich Thématique : POSITIONNEMENT Nature : Thèse étrangère DOI : 10.3929/ethz-a-005648120 En ligne : https://www.sgc.ethz.ch/sgc-volumes/sgk-76.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62745 Réservation
Réserver ce documentExemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 15512-01 30.83 Livre Centre de documentation Géodésie Disponible Choix optimal du modèle troposphérique pour la détermination précise des coordonnées des stations GPS / Salem Kahlouche in Bulletin des sciences géographiques, n° 22 (octobre 2008)
[article]
Titre : Choix optimal du modèle troposphérique pour la détermination précise des coordonnées des stations GPS Type de document : Article/Communication Auteurs : Salem Kahlouche, Auteur ; Said Touam, Auteur ; H. Dekkiche, Auteur Année de publication : 2008 Article en page(s) : pp 7 - 11 Note générale : Bibliographie Langues : Français (fre) Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] analyse comparative
[Termes IGN] Bernese
[Termes IGN] coordonnées géographiques
[Termes IGN] ligne de base
[Termes IGN] modèle atmosphérique
[Termes IGN] propagation troposphérique
[Termes IGN] réfraction atmosphérique
[Termes IGN] station GPS
[Termes IGN] traitement de données GNSSRésumé : (Auteur) Le thème développé à travers cet article porte sur l'étude comparative des différents modèles troposphériques pour des applications géodésiques. Le but est de définir une méthodologie permettant de déterminer, en fonction de la longueur des bases observées, le modèle troposphérique optimal à appliquer à l'analyse des mesures GPS. Les données GPS utilisées lors du traitement comportent trois lignes de base de différentes longueurs, à savoir "Oan-Murdjadjo", "Alger-Tamanraset" et Alger-Madrid". Le traitement des observations GPS a été effectué avec le logiciel scientifique de l'université de Berne "Bernèse GPS software version 4.2". Copyright INCT Numéro de notice : A2008-540 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29610
in Bulletin des sciences géographiques > n° 22 (octobre 2008) . - pp 7 - 11[article]Réservation
Réserver ce documentExemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 253-08021 RAB Revue Centre de documentation En réserve L003 Disponible Eléments de physique pour l'imagerie aérienne et spatiale et la géodésie [diaporama pour le master PPMD] / Michel Kasser (2008)
Titre : Eléments de physique pour l'imagerie aérienne et spatiale et la géodésie [diaporama pour le master PPMD] Type de document : Guide/Manuel Auteurs : Michel Kasser , Auteur Editeur : Champs-sur-Marne : Ecole nationale des sciences géographiques ENSG Année de publication : 2008 Importance : 160 p. Format : 30 x 21 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Rayonnement électromagnétique
[Termes IGN] albedo
[Termes IGN] chambre DTC
[Termes IGN] colorimétrie
[Termes IGN] détecteur à transfert de charge
[Termes IGN] diffusion de Mie
[Termes IGN] diffusion de Rayleigh
[Termes IGN] diffusion du rayonnement
[Termes IGN] distorsion d'image
[Termes IGN] espace colorimétrique
[Termes IGN] image RVB
[Termes IGN] propagation troposphérique
[Termes IGN] rayonnement électromagnétique
[Termes IGN] réflexion spéculaire
[Termes IGN] réfraction atmosphérique
[Termes IGN] synthèse trichromatique
[Termes IGN] télémétrie laser aéroporté
[Termes IGN] télémétrie laser terrestreRésumé : (Documentaliste) Ce diaporama présente différentes connaissances relatives à la propagation des ondes électromagnétiques (réfraction et diffusion), à la colorimétrie des images, à la géométrie des images aériennes et spatiales et aborde la technologie des capteurs (chambre numérique DTC, laser). Numéro de notice : 14350 Affiliation des auteurs : IGN (1940-2011) Thématique : IMAGERIE Nature : Manuel de cours IGN Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=46390 Documents numériques
en open access
14350_diaporama_elementsphysiquemastppmd_kasser.pdfAdobe Acrobat PDF Proceedings of the 15th international workshop on laser ranging, Canberra, Australia, 15 - 20 October 2006 / J. Luck (2008)
Titre : Proceedings of the 15th international workshop on laser ranging, Canberra, Australia, 15 - 20 October 2006 : Extending the range Type de document : Actes de congrès Auteurs : J. Luck, Éditeur scientifique ; C. Moore, Éditeur scientifique ; P. Wilson, Éditeur scientifique Editeur : Griffith (Australie) : EOS Space systems Année de publication : 2008 Conférence : IWLR 2006, 15th international workshop on laser ranging, Extending the range 15/10/2006 20/10/2006 Canberra Australie OA proceedings Importance : 298 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Lageos
[Termes IGN] orbitographie
[Termes IGN] orbitographie par GNSS
[Termes IGN] réfraction atmosphérique
[Termes IGN] série temporelle
[Termes IGN] télémétrie laser sur satellite
[Termes IGN] téléscope
[Termes IGN] trajectographie par DORIS
[Termes IGN] transpondeurNote de contenu : Science Products Session
Summary / S Klosko
Enhanced Modelling of the Non-Gravitational Forces Acting on LAGEOS / J Andres, R Noomen
Calibrating GNSS Orbts with SLR Tracking Data / C Urschl, G Beutler, W Gurtner, U Hugentobler, S Schaer
GIOVE-A and GPS-35/36 Orbit Determination and Analysis of Dynamical Properties Based on SLR-only Tracking Data / S Melachroinos, F Perosanz, F Deleflie, R Biancalel, O Laurain, P Exertier
Orbit Determination and Analysis for Giove-A using SLR Tracking Data / R Govind
Orbit Determination for GIOVE-A using SLR Tracking Data / C Urschl, G Beutler, W Gurtner, U Hugentobler, M Ploner
Satellite Laser Ranging in the National (Australian) Collaborative Research Infrastructure Proposal for Geospatial R&D / K Lambeck
Time-Variable Gravity from SLR and DORIS Tracking / F Lemoine, S Klosko, C Cox, T Johnson
Global Glacial Isostatic Adjustment: Target Fields for Space Geodesy / W Peltier
Recent Results from SLR Experiments in Fundamental Physics: Frame Dragging Observed with Satellite Laser Ranging / E Pavlis, I Ciufolini, R Konig
A "Web Service" to Compare Geodetic Time Series / F Deleflie
Least-Square Mean Effect: Application to the Analysis of SLR Time Series / D Coulot, P Berio, A Pollet
Some Aspects Concerning the SLR Part of ITRF2005 / H Mueller, D Angermann
Determination of the Temporal Variations of the Earth's Centre of Mass from Multi-Year Satellite Laser Ranging Data / R Govind
Contribution of Satellite and Lunar Laser Ranging to Earth Orientation Monitoring / D Gambis, R Biancale
Station Positioning and the ITRF / Z Altamimi
Station Coordinates, Earth Rotation Parameters and Low Degree Harmonics from SLR within GGOS-D / R Koenig, H Mueller
An Original Approach to Compute Satellite Laser Ranging Biases / D Coulot, P Berio, O Laurain, D Feraudy, P Exertier
Analysis of 13 Years (1993-2005) of Satellite Laser Ranging Data on the Two LAGEOS Satellites for Terrestrial Reference Frames and Earth Orientation Parameters / D Coulot, P Berio, O Laurain, D Feraudy, P Exertier, F Deleflie
Network Performance and Results Session
Summary / C Luceri, M Torrence
The SLR Network from a QC Perspective / R Noomen
The ILRS Standard Products: a Quality Assessment / G Bianco, V Luceri, C Sciarretta
Systematic Range Bias 2005-06 / T Otsubo, N Obara
A Reassessment of Laser Ranging Accuracy at SGF Herstmonceux, UK / P Gibbs, G Appleby, C Potter
The Global SLR Network and the Origin and Scale of the TRF in the GGOS Era / E Pavlis
FTLRS Ajaccio Campaigns: Operations and Positioning Analysis over 2002/2005 / F Pierron, B Gourine, P Exertier, P Berio, P Bonnefond, D Coulot et al
SLR-based Evaluation and Validation Studies of Candidate ITRF2005 Products / E Pavlis, M Kuzmicz-Cieslak, D Pavlis
An Optimised Global SLR Network for Terrestrial Reference Frame Definition / R Govind
Performance of Southern Hemisphere Stations / J Luck
The Evolution of SLR/LLR in Response to Mission Needs / P Shelus
Assessment of SLR Network Performance / M Torrence, P Dunn
Performance of WPLTN Stations / J Luck
Archiving and Infrastructure Support at the ILRS Data Centers / C Noll, M Torrence, W Seemueller
Minico Calibration of System Delay Calibration at Mount Stromlo SLR / J Luck
A Summary of Observations of Giove A, taken from Mt Stromlo SLR Station / C Moore
Lasers and Detectors Session
Summary / J Degnan, I Prochaska
Photon Counting Module for Laser Time Transfer Space Mission / K Hamal, I Prochazka, L Kral, Y Fumin
Picosecond Lasers with Raman Frequency and Pulsewidth Conversion for Range Finding / N Andreev, E Grishin, O Kulagin, A Sergeev, M Valley
Advanced Solid State Laser System for Space Tracking / Y Gao, Y Wang, B Greene, C Smith, A Chan, A Gray, J Vear, M Blundell
Altimetry Session
Summary / F Lemoine
Second-Generation, Scanning, 3D Imaging Lidars Based on Photon-Counting / J Degnan, D Wells, R Machan, E Leventhal, D Lawrence, Y Zheng, S Mitchell, C Field, W Hasselbrack
The BELA - The First European Planetary Laser Altimeter: Conceptional Design and Technical Status / H Michaelis, T Spohn, J Oberst, N Thomas, K Seiferlin, U Christensen, M Hilchenbach, U Schreiber
Timing System for the Laser Altimeter for Planetary Exploration Technology Demonstrator / P Jirousek, I Prochazka, K Hamal, M Fedyszynova, U Schreiber, H Michaelis, Y Fumin, H Peicheng
A Compact Low Power Altimetry Laser for Lunar Applications / T Varghese, R Burnham
Lasercomm at Sea - Trident Warrior 06 / R Burris
Kilohertz Session
Summary / G Kirchner, G Appleby
Portable Pico Event Timer and SLR Control (P-PET-C) System / K Hamal, I Prochazka, Y Fumin
Some Early Results of Kilohertz Laser Ranging at Herstmonceux / P Gibbs, C Potter, R Sherwood, M Wilkinson, D Benham, V Smith, G Appleby
Performance of Liquid Crystal Optical Gate for Suppressing Laser Backscatter in Monostatic Kilohertz SLR Systems / J Degnan, D Caplan
SLR2000: The Path toward Completion / J McGarry, T Zagwodzki
Determination of AJISAI Spin Parameters using Graz kHz SLR Data / G Kirchner, W Hausleitner, E Cristea
New Methods to Determine Gravity Probe-B Spin Parameters using Graz kHz SLR Data / G Kirchner, D Kucharski, E Cristea
LAGEOS-1 Spin Determination, using Comparisons between Graz kHz SLR Data and Simulations / D Kucharski, G Kirchner
Measuring Atmospheric Seeing with KHz SLR / G Kirchner, D Kucharski, F Koidl, J Weingrill
Timing Systems Session
Summary / Y Fumin
A032-ET Experimental Test on Changchun SLR / C Fan, X Dong, Y Zhao, X Han
Event Timing System for Riga SLR Station / Y Artyukh, V Bespal'ko, K Lapushka, A Rybakov
Instrumentation for Creating KHz SLR Timing Systems / Y Artyukh, E Boole, V Vedin
OCA Event Timer / E Samain, J-M Torre, D Albanese, Ph Guillemot, F Para, J Paris, I Petitbon, P Vrancken, J Weick
The Model A032-ET of Riga Event Timers / V Bespal'ko, E Boole, V Vedin
Upgrading of Integration of Time to Digit Converter on a Single FPGA / Y Zhang, P Huang, R Zhu
High-Speed Enhancement to HTSI Event Timer Systems / D McClure, C Steggerda, S Wetzel
Low-Noise Frequency Synthesis for High Accuracy Picosecond Satellite Laser Ranging Timing Systems / J Kolbl, P Sperber, G Kirchner, F Koidl
Multiple Wavelength and Refraction Session
Summary / E Pavlis
Analysis of Multi-Wavelength SLR Tracking Data Using Precise Orbits / H Mueller
Improvement of Current Refraction Modeling in Satellite Laser Ranging (SLR) by Ray Tracing through Meterological Data / G Hulley, E Pavlis
Two-Color Calibration of the Zimmerwald SLR System / W Gurtner, E Pop, J Utzinger
Multi Color Satellite Laser Ranging / K Hamal, I Prochazka, J Blazej, Y Fumin, H Jingfu, Z Zhongping, H Kunimori, B Greene, G Kirchner, F Koidl, S Riepfel, W Gurtner
Telescopes, Stations and Upgrades Session
Summary / C Smith
Grasse Laser Stations in Evolutions to Future and Technological Developments / F Pierron, E Samain, J-M Torre, M Pierron, M Furia et al
New Russian Systems for SLR, Angular Measurements and Photometry / V Burmistrov, N Parkhomenko, V Shargorodsky, V Vasiliev
TLRS-3 Return to Operations / H Donovan, D McCollums, D Patterson, J Horvath, M Heinick, S Wetzel, D Carter
Korean Plan for SLR System Development / H-C Lim, J-U Park, S-K Jeong, B-S Kim
Study on Servo-Control System of Astronomical Telescopes / Z Li, X Zheng, Y Xiong
Russian Laser Tracking Network / V Burmistrov, A Fedotov, N Parkhomenko, V Pasinkov, V Shargorodsky, V Vasiliev
TLRS-4 Deployment to Maui, Hawaii / S Wetzell, H Donovan, M Blount, D McCollums, C Foreman, M Heinick
New SLR Station Running in San Juan of Argentina / T Wang, F Qu, Y Han, W Liu, E Actis, R Podesta
System Improvement and GIOVE-A Observation of Changchun SLR / Y Zhao, C Fan, X Han, D Yang, N Chen, F Xue, L Geng, C Liu, J Shi, Z Zhang, B Shao, H Zhang, X Dong
Advanced Concepts and Time Transfer Session
Summary / H Kunimori
Progress on Laser Time Transfer Project / Y Fumin, H Peicheng, C Wanzhen, Z Zhongping, W Yuanming, C Juping, G Fang, Z Guangnan, L Ying, I Prochazka, K Hamal
T2L2 - Time Transfer by Laser Link / E Samain, Ph Guillemot, D Albanese, Ph Berio, F Deleflie, P Exertier, F Para, J Paris, I Petitbon, J-M Torre, P Vrancken, J Weick
New Application of KHz Laser Ranging: Time Transfer via Ajisai / T Otsubo, H Kunimori, T Gotoh
A Satellite Tracking Demonstration on Ground Using 100mm Aperture Optical Antenna for Space Laser Communication / H Kunimori, M Okawa, H Watanabe,Y Yasuda
The NASA Satellite Laser Ranging Network: Current Status and Future Plans / D Carter
Possibility of Laser Ranging Support for the Next-Generation Space VLBI Mission, ASTRO-G / T Otsubo, T Kubo-oka, H Saito, H Hirabayashi, T Kato, M Yoshikawa, Y Murata, Y Asaki, S Nakamura
Electron Multiplying CCD Camera Performance Tests / D Lewova, M Nemec, I Prochazka, K Hamal, G Kirchner, F Koidl, D Kucharski, Y Fumin
LIDAR Experiments at the Space Geodesy Facility, Herstmonceux, UK / G Appleby, C Potter, P Gibbs, R Jones
Possibility of the Near Earth Objects Distance Measurement with Laser Ranging Device / M Abele, L Osipova
Transponder Session
Summary / U Schreiber
Laser Ranging at Interplanetary Distances / G Neumann, J Cavanaugh, B Coyle, J McGarry, D Smith, X Sun, M Torrence, T Zagwodski, M Zuber
Simulating Interplanetary Transponder and Laser Communications Experiments via Dual Station Ranging to SLR Satellites / J Degnan
Laser Ranging at Planetary Distances from SLR2000 / J McGarry, T Zagwodzki, P Dabney, P Dunn, J Cheek
Laser Ranging to the Lunar Reconnaissance Orbiter (LRO) / D Smith, M Zuber, M Torrence, J McGarry, M Pearlman
Un-cooperative Targets Session
Summary / C Smith
The Experimental Laser Ranging System for Space Debris at Shanghai / Y Fumin, C Wanzhen, Z Zhongping, C Juping, W Yuanming, K Hamal, I Prochazka
Simultaneous Optical and Laser Space Objects Tracking / M Nemec, I Prochazka, K Hamal, G Kirchner, F Koidl, W Voller
Software and Automation Session
Summary / W Gurtner, J McGarry
A Comparison of Performance Statistics for Manual and Automated Operations at Mt. Stromlo / C Moore
EOS Software Systems for Satellite Laser Ranging and General Astronomical Observatory Applications / M Pearson
Electro-Control System of San Juan SLR Station / P Wang, T Guo, X Li, Y Han, W Liu, T Wang, F Qu, Y Tan, T Zou
Integrated Upgrades of Control System for TROS / L Xin, G Tangyong, A Tong, W Peiyuan, T Yechun, X Jiening, Z Yunyao D Ruilin
CCD and SLR Dual-use of the Zimmerwald Tracking System / W Gurtner, M Ploner
Automated Transmitter Beam Size and Divergence Control in the SLR2000 System / J Degnan, G Jodor, H Bourges
Obtaining the High-resolution Epoch with the FPGA Technology / Q Li, F Qu, Z Wei
New FTLRS Software Tools for Tuning Observations Schedule and Remote Control / M Pierron et al
Recursive Filter Algorithm for Noise Reduction in SLR / M Heiner, U Schreiber, N Brandl
The Impact and Resolution of "Collision Bands" on Tracking Targets at Various Ranges / C Moore
Web Application for the Engineering Data Files Processing / K Salminsh
Consolidated Laser Prediction and Data Formats: Supporting New Technology / R Ricklefs
Lunar Laser Ranging Session
Summary / T Murphy
APOLLO Springs to Life: One-millimeter Lunar Laser Ranging / T Murphy, E Adelberger, J Battat, C Hoyle, E Michelsen, C Stubbs, H Swanson
Targets and Return Signal Strength Session
Summary / T Murphy
Retroreflector Studies / D Arnold
The INFN-LNF Space Climatic Facility for LARES and ETRUSCO / D Arnold, G Bellettini, A Cantone, I Ciufolini, D Currie, S Dell'Agnello, G Delle-Monache, M Franceschi, M Garattini, N Intaglietta, A Lucantoni, T Napolitano, A Paolozzi, E Pavlis, R Tauraso, R Vittori
Absolute Calibration of LLR Signal: Reflector Health Status / T Murphy, E Adelberger, J Battat, C Hoyle, E Michelsen, C Stubbs, H Swanson
Experimental Return Strengths from Optus-B and GPS / J Luck, C Moore
Spherical Glass Target Microsatellite / V Shargorodsky, V Vasiliev, M Belov, I Gashkin, N Parkhomenko
Overflow Session
Summary / M Pearlman
Current Status of "Simeiz-1873" Station / A Dmytrotsa, O Minin, D Neyachenko
Overview and Performance of the Ukrainian SLR station "Lviv-1831" / K Martynyuk-Lototsky, J Blahodyr, A Bilinskiy, O Lohvynenko
Results of the TLRS-4/Moblas-7 Intercomparison Test / J Horvath, M Blount, C Clarke, H Donovan, C Foreman, M Heinick, A Mann, D Patterson, D McCollums, T Oldham, S Wetzel, D Carter
The Accuracy Verification for GPS Receiver of ALOS by SLR / N Kudo, S Nakamura, R Nakamura
Fulfillment of SLR Daylight Tracking of Changchun Station / Y Zhao, X Han, C Fan, T Dai
GLONASS Status Update and MCC Activity in GLONASS Program / V Glotov, S Revnivykh, V MitrikasNuméro de notice : 14468 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Actes DOI : sans En ligne : http://cddis.gsfc.nasa.gov/lw15/index.html Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34658 Contient
- Least-square mean effect: Application to the analysis of SLR time series / David Coulot (2008)
- An original approach to compute Satellite Laser Range biases / David Coulot (2008)
- Station Positioning and the ITRF / Zuheir Altamimi (2008)
- Analysis of 13 years (1993-2005) of Satellite Laser Ranging data on the two LAGEOS satellites for Terrestrial Reference Frames and Earth Orientation Parameters / David Coulot (2008)
- FTLRS Ajaccio campaigns : operations and positioning analysis over 2002/2005 / F. Pierron (2008)
3D modelling of the tropospheric refractivity using a permanent GPS network / D. Marcias-Valadez in Geomatica, vol 61 n° 4 (December 2007)PermalinkHigher order ionospheric effects in precise GNSS positioning / M. Mainul Hoque in Journal of geodesy, vol 81 n° 4 (April 2007)PermalinkEstimating atmospheric transmission and surface reflectance from a glint-contaminated spectral image / W. Philpot in IEEE Transactions on geoscience and remote sensing, vol 45 n° 2 (February 2007)PermalinkLe point sur les traitements de données GNSS en réseau pour un positionnement centimétrique temps réel de meilleure qualité / Romain Legros in XYZ, n° 105 (décembre 2005 - février 2006)PermalinkA least squares adjustment of multi-temporal INSAR data: application to the ground deformation of Paris / S. Le Mouelic in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 2 (February 2005)PermalinkCollocation-based multiple reference station positioning using the covariance of the corrections / P. Alves in Geomatica, vol 59 n° 1 (January 2005)PermalinkEtude d'une méthode de photogrammétrie sous-marine adaptée à un logiciel de photogrammétrie terrestre / Walid Mostafa (2005)PermalinkSatellite constellation with direct radio measurements for atmospheric studies : WATS mission case / G. Alberti in International Journal of Remote Sensing IJRS, vol 25 n° 18 (September 2004)PermalinkSingle frequency processing of atmospheric radio occultations / M. De La Torre Juarez in International Journal of Remote Sensing IJRS, vol 25 n° 18 (September 2004)PermalinkQuelques réflexions sur la réfraction d'un rayon lumineux dans l'air / R. Vincent in XYZ, n° 98 (mars - mai 2004)Permalink