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GPS satellite surveying / Alfred Leick (2015)
Titre : GPS satellite surveying Type de document : Guide/Manuel Auteurs : Alfred Leick, Auteur ; Lev Rapoport, Auteur ; Dmitry Tatarnikov, Auteur Mention d'édition : 4th edition Editeur : New York, Londres, Hoboken (New Jersey), ... : John Wiley & Sons Année de publication : 2015 Importance : 807 p. Format : 16 x 24 cm ISBN/ISSN/EAN : 978-1-118-67557-1 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] antenne GNSS
[Termes IGN] compensation Lambda
[Termes IGN] Global Positioning System
[Termes IGN] positionnement cinématique en temps réel
[Termes IGN] positionnement par GNSS
[Termes IGN] troposphèreIndex. décimale : 30.61 Systèmes de Positionnement par Satellites du GNSS Résumé : (Editeur) This book is the classic text on the subject, providing the most comprehensive coverage of global navigation satellite systems applications for surveying. Fully updated and expanded to reflect the field's latest developments, this new edition contains new information on GNSS antennas, Precise Point Positioning, Real-time Relative Positioning, Lattice Reduction, and much more. New contributors offer additional insight that greatly expands the book's reach, providing readers with complete, in-depth coverage of geodetic surveying using satellite technologies. The newest, most cutting-edge tools, technologies, and applications are explored in-depth to help readers stay up to date on best practices and preferred methods, giving them the understanding they need to consistently produce more reliable measurement. Global navigation satellite systems have an array of uses in military, civilian, and commercial applications. In surveying, GNSS receivers are used to position survey markers, buildings, and road construction as accurately as possible with less room for human error. This book provides complete guidance toward the practical aspects of the field, helping readers to: - Get up to speed on the latest GPS/GNSS developments, - Understand how satellite technology is applied to surveying, - Examine in-depth information on adjustments and geodesy, - Learn the fundamentals of positioning, lattice adjustment, antennas, and more. The surveying field has seen quite an evolution of technology in the decade since the last edition's publication. This new edition covers it all, bringing the reader deep inside the latest tools and techniques being used on the job. Surveyors, engineers, geologists, and anyone looking to employ satellite positioning will find GPS Satellite Surveying to be of significant assistance. Note de contenu : 1. INTRODUCTION
2. LEAST-SQUARES ADJUSTMENTS
2.1 Elementary Considerations
2.2 Stochastic and Mathematical Models
2.3 Mixed Model
2.4 Sequential Mixed Model
2.5 Model Specifications
2.6 Minimal and Inner Constraints
2.7 Statistics in Least-Squares Adjustment
2.8 Reliability
2.9 Blunder Detection
2.10 Examples
2.11 Kalman Filtering
3. RECURSIVE LEAST SQUARES
3.1 Static Parameter
3.2 Static Parameters and Arbitrary Time-Varying Variables
3.3 Dynamic Constraints
3.4 Static Parameters and Dynamic Constraints
3.5 Static Parameter, Parameters Subject to Dynamic Constraints, and Arbitrary Time-Varying Parameters
4. GEODESY
4.1 International Terrestrial Reference Frame
4.2 International Celestial Reference System
4.3 Datum
4.4 3D Geodetic Model
4.5 Ellipsoidal Model
4.6 Conformal Mapping Model
4.7 Summary
5. SATELLITE SYSTEMS
5.1 Motion of Satellites
5.2 Global Positioning System
5.3 GLONASS
5.4 Galileo
5.5 QZSS
5.6 Beidou
5.7 IRNSS
5.8 SBAS: WAAS, EGNOS, GAGAN, MSAS, and SDCM
6. GNSS POSITIONING APPROACHES
6.1 Observables
6.2 Operational Details
6.3 Navigation Solution
6.4 Relative Positioning
6.5 Ambiguity Fixing
6.6 Network-Supported Positioning
6.7 Triple-Frequency Solutions
6.8 Summary
7. REAL-TIME KINEMATICS RELATIVE POSITIONING
7.1 Multisystem Considerations
7.2 Undifferenced and Across-Receiver Difference Observations
7.3 Linearization and Hardware Bias Parameterization
7.4 RTK Algorithm for Static and Short Baselines
7.5 RTK Algorithm for Kinematic Rovers and Short Baselines
7.6 RTK Algorithm with Dynamic Model and Short Baselines
7.7 RTK Algorithm with Dynamic Model and Long Baselines
7.8 RTK Algorithms with Changing Number of Signals
7.9 Cycle Slip Detection and Isolation
7.10 Across-Receiver Ambiguity Fixing
7.11 Software Implementation
8. TROPOSPHERE AND IONOSPHERE
8.1 Overview
8.2 Tropospheric Refraction and Delay
8.3 Troposphere Absorption
8.4 Ionospheric Refraction
9. GNSS RECEIVER ANTENNAS
9.1 Elements of Electromagnetic Fields and Electromagnetic Waves
9.2 Antenna Pattern and Gain
9.3 Phase Center
9.4 Diffraction and Multipat
9.5 Transmission Lines
9.6 Signal-to-Noise Ratio
9.7 Antenna TypesNuméro de notice : 22434 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel de cours DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79696
Titre : Korrektur stationsabhängiger Fehler bei GNSS Type de document : Thèse/HDR Auteurs : Andreas Knöpfler, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2015 Collection : DGK - C, ISSN 0065-5325 num. 744 Importance : 177 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-5156-0 Note générale : bibliographie
akademisches Grades eines Doktor-Ingenieurs von der Fakultüt für Bauingenieur-, Geo- und Umweltwissenschaften des Karlsruher Instituts für TechnologieLangues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] antenne GNSS
[Termes IGN] centre de phase
[Termes IGN] erreur systématique
[Termes IGN] étalonnage d'instrument
[Termes IGN] modèle d'erreur
[Termes IGN] positionnement ponctuel précis
[Termes IGN] positionnement statique
[Termes IGN] résidu
[Termes IGN] traitement de données GNSS
[Termes IGN] trajet multipleMots-clés libres : stacking map Index. décimale : 30.60 Géodésie spatiale Résumé : (auteur) Highly precise positioning techniques based on Global Navigation Satellite Systems (GNSS) have become a standard tool for numerous disciplines, benefitting from the continuous development of receiver equipment and the appearance of additional GNSS. In addition to the classical differential processing approach, the Precise Point Positioning (PPP) method is able to derive station coordinates with the same accuracy as a baseline setup, when sufficient observation time is available. The basis for PPP is the improved quality of external products for the GNSS data processing, for example the orbit and especially the satellite clock products of the International GNSS Service (IGS) and its analysis centers.
The increased usage of GNSS comes along with higher demands on accuracy. Therefore, the modelling of important error sources in GNSS is continuously upgraded. Intensive research led to a refinement of both the functional and the stochastic model in GNSS data processing in order to enable the correction of specific error components, for example the antenna behaviour or the tropospheric delay. Despite of the improvements in GNSS modelling, multipath effects still remain as a main error source in highly precise GNSS positioning. Within this work, stacking techniques are used to correct for multipath effects and further site dependent errors, for example residual errors in the calibration values of the receiving GNSS antenna. The method developed in this work is based on zero difference PPP residuals, which are accumulated over defined azimuth-elevation cells and over a fixed period of time (here: 10 d) and introduced as correction (so-called stacking maps) in a second PPP processing run. The main purpose of this approach aims for the improvement of data, recorded on continuously operating reference stations.
Within this work, two scenarios for the implementation of the corrections were investigated in detail: the combination of the stacking maps joined with the calibration information of the GNSS receiving antennas and in contrast to this approach the separate modelling of both aspects in a separate file. In order to check the effectivity of this method, the results (e.g., coordinates, residuals) before and after the introduction of the stacking maps were intensively analyzed. Within the second scenario (introduction of the correction in a separate file), the behaviour of the stacking maps over time was investigated by the analysis of so-called sliding stacking maps. Sliding stacking maps are generated as follows: calculation of a first stacking map from the residuals for example for day of year (DoY) 121 to 130 and introduction as correction for DoY 131, the next stacking map is computed from the residuals for DoY 122 to 131 and introduced for DoY 132 and so on. Especially sites with poor data quality show a significant improvement of the residual values after the implementation of stacked information. Furthermore, observations remain in the used data set, whereas they were eliminated in the processing without the introduction of stacking maps.
In addition, the necessity of expensive, site-dependent individual antenna calibration was checked. The focus was on the compensating level of the stacking approach with respect to unmodelled antenna effects based on the replacement of individual receiving antenna calibrations by type mean values of the IGS in combination with stacking maps. Therefore, data of selected sites were processed using both the existing individual antenna calibration sets and the IGS type mean values. In a second processing run, the calibration sets were introduced taking the corresponding stacking information into account. Differences in the phase center variations of the antennas can be corrected by the stacking maps. Discrepancies due to differences in the phase center offsets remain in the estimated site coordinates.Numéro de notice : 14920 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Note de thèse : PhD : Géodésie : Karlsruhes Institut für Technologie : 2015 DOI : 10.5445/KSP/1000045959 En ligne : https://doi.org/10.5445/KSP/1000045959 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76931
[article]
Titre : Synthetic-aperture GNSS signal processing Type de document : Article/Communication Auteurs : Thomas Pany, Auteur ; Nico Falk, Auteur ; Bernhard Riedl, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 42 - 46 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] antenne GNSS
[Termes IGN] antenne synthétique
[Termes IGN] dégradation du signal
[Termes IGN] traitement du signalRésumé : (Editeur) [...] In this month's column, we take a look at a novel GNSS signal-processing technique, which uses the principles of SAR to improve code and carrier-phase observations in degraded environments such as under forest canopy. The technique can simultaneously reject multipath signals while maximizing the direct line-of-sight signal power from a satellite. Along with a specially programmed software receiver, it uses either a single conventional antenna mounted, say, on a pedestrian's backpack for GIS applications or a special rotating antenna for high-accuracy surveying. Numéro de notice : A2013-539 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans En ligne : http://gpsworld.com/innovation-under-cover-synthetic-aperture-gnss-signal-proces [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32676
in GPS world > vol 24 n° 9 (September 2013) . - pp 42 - 46[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 067-2013091 RAB Revue Centre de documentation En réserve L003 Disponible GNSS spoofing detection: Correlating carrier phase with rapid antenna motion / Mark Psiaki in GPS world, vol 24 n° 6 (June 2013)
[article]
Titre : GNSS spoofing detection: Correlating carrier phase with rapid antenna motion Type de document : Article/Communication Auteurs : Mark Psiaki, Auteur ; Steven Powell, Auteur ; Brady O'hanlon, Auteur Année de publication : 2013 Article en page(s) : pp 53 - 58 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] antenne GNSS
[Termes IGN] détection du signal
[Termes IGN] signal GNSSRésumé : (Editeur) So, is there anything that military or civil GNSS users can do, then, to guard against their receivers being spoofed by sophisticated false signals? In this month’s column, we take a look at a novel, yet relatively easily implemented technique that enables users to detect and sequester spoofed signals. It just might help make it a safer world for GNSS positioning, navigation, and timing. Numéro de notice : A2013-331 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans En ligne : http://gpsworld.com/innovation-gnss-spoofing-detection-correlating-carrier-phase [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32469
in GPS world > vol 24 n° 6 (June 2013) . - pp 53 - 58[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 067-2013061 RAB Revue Centre de documentation En réserve L003 Disponible Evaluation of the ITRF2008 GPS vertical velocities using satellite antenna z-offsets / Xavier Collilieux in GPS solutions, vol 17 n° 2 (April 2013)
[article]
Titre : Evaluation of the ITRF2008 GPS vertical velocities using satellite antenna z-offsets Type de document : Article/Communication Auteurs : Xavier Collilieux , Auteur ; Ralf Schmid, Auteur Année de publication : 2013 Article en page(s) : pp 237 - 246 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] antenne GNSS
[Termes IGN] centre de phase
[Termes IGN] filtre de Kalman
[Termes IGN] International Terrestrial Reference FrameRésumé : (auteur) We develop a method to evaluate the terrestrial reference frame (TRF) scale rate error using Global Positioning System (GPS) satellite antenna phase center offset (APCO) parameters and apply it to ITRF2008. We search for the TRF in which z-APCO parameters have the smallest drift. In order to provide realistic error bars for the z-APCO drifts, we pay attention to model periodic variations and auto-correlated noise processes in the z-APCO time series. We will show that the GPS scale rate with respect to a frame is, as a first approximation, proportional to the estimated mean z-APCO trend if that frame is used to constrain station positions. Thus, an ITRF2008 scale rate error between - 0.27 and - 0.06 mm/yr depending on the GPS analysis center can be estimated, which demonstrates the high quality of the newly constructed ITRF2008. We will also demonstrate that the traditional estimates of the GPS scale rate from 7-parameter similarity transformations are consistent with our newly derived GPS scale rates with respect to ITRF2008 within two sigmas. We find using International GNSS Service (IGS) products that the traditional approach is relevant for scale rate determination even if some of the z-APCO values supplied by the IGS were not simultaneously calibrated. As the scale rate is related to the accuracy of vertical velocities, our estimates supply a conservative evaluation that can be used for error budget computation. Numéro de notice : A2013-850 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : POSITIONNEMENT Nature : Article DOI : 10.1007/s10291-012-0274-8 Date de publication en ligne : 11/07/2012 En ligne : http://dx.doi.org/10.1007/s10291-012-0274-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80131
in GPS solutions > vol 17 n° 2 (April 2013) . - pp 237 - 246[article]Méthodes de travail dans les réseaux GNSS, 3ème partie Méthodes du "statique multi-stations" / Romain Legros in XYZ, n° 134 (mars - mai 2013)PermalinkPermalinkDirect exterior orientation determination for a low-cost heritage recording system / M. Kirschhöfer in Photogrammetric record, vol 27 n° 140 (December 2012 - February 2013)PermalinkMesurer les avions de Swisstopo, un mandat plutôt inhabituel / Jim Ray in Géomatique suisse, vol 110 n° 11 (01/11/2012)PermalinkIGS08 : the IGS realization of ITRF2008 / Paul Rebischung in GPS solutions, vol 16 n° 4 (October 2012)PermalinkThe affine constrained GNSS attitude model and its multivariate integer least-squares solution / Peter J.G. Teunissen in Journal of geodesy, vol 86 n° 7 (July 2012)PermalinkGPS snow depth meter with geometry-free linear combinations of carrier phases / M. Ozeki in Journal of geodesy, vol 86 n° 3 (March 2012)PermalinkGNSS antennas and humans: a study of their interactions / J. Bancroft in GPS world, vol 23 n° 2 (February 2012)PermalinkAntennas for Global Navigation Satellite Systems / Xiaodong Chen (2012)PermalinkPermalink