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Titre de série : Cours de physique Berkeley, 1 Titre : Tome 1, Mécanique Type de document : Guide/Manuel Auteurs : C. Kittel, Auteur ; W.D. Knight, Auteur ; M.A. Rudermann, Auteur ; P. Lallemand, Traducteur Editeur : Paris : Armand Colin Année de publication : 1972 Collection : U-Physique Importance : 481 p. Format : 22 x 24 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Physique
[Termes IGN] accélération
[Termes IGN] dynamique
[Termes IGN] énergie
[Termes IGN] invariance
[Termes IGN] mécanique
[Termes IGN] oscillateur
[Termes IGN] particule
[Termes IGN] transformation de LorentzNuméro de notice : 48964A Affiliation des auteurs : non IGN Nature : Manuel de cours Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=47977 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 48964-01A 24.11 Livre Centre de documentation En réserve M-103 Disponible
Titre : Dynamique générale des vibrations Type de document : Monographie Auteurs : Y. Rocard, Auteur Mention d'édition : 4 Editeur : Paris : Masson Année de publication : 1971 Importance : 459 p. Format : 16 x 24 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Physique
[Termes IGN] filtre
[Termes IGN] gyroscope
[Termes IGN] impedance
[Termes IGN] onde acoustique
[Termes IGN] oscillateur
[Termes IGN] oscillation
[Termes IGN] pendule
[Termes IGN] vibrationNuméro de notice : 47850 Affiliation des auteurs : non IGN Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=58712 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 47850-01 24.15 Livre Centre de documentation En réserve M-103 Disponible Gleichrichtmomente bei nordweisenden Kreiseln kurzer Nordsuchzeit infolge oszillatorischer Störbewegungen / P. Schultz (1975)
Titre : Gleichrichtmomente bei nordweisenden Kreiseln kurzer Nordsuchzeit infolge oszillatorischer Störbewegungen Titre original : [Moment cinétique identique lors du court temps de recherche du Nord par un gyroscope indiquant le nord par suite de mouvements perturbés de l'oscillateur] Type de document : Thèse/HDR Auteurs : P. Schultz, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1975 Collection : DGK - C Sous-collection : Dissertationen num. 205 Importance : 154 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9261-7 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] gyroscope
[Termes IGN] moment cinétique
[Termes IGN] oscillateurIndex. décimale : 30.03 Instruments de géodésie Résumé : (Auteur) Oscillatory disturbing motions may give rise to a biased term of nonlinearities on gyroscopic instruments. The present study deals with those effects, which are detected on north seeking gyros with a short north settling time designed for stationary operation. That is, they are generally utilized on steady carriers. With regard to simple external disturbing motions frequently experienced on land vehicles using fast north seeking gyros, and internal disturbing motions of the gyro caused by ball bearing defects and rotor unbalances the equations of motion are solved for the three most commonly used meridian gyro types. Hence, the non-linear elements effective about the output axis of the instruments are taken into consideration. The nonlinear elements include biased quadratic terms ,that lead to north errors of the instruments. By neglecting the insignificant elements of the biased terms, the analytical expression can be considerably simplified. With this simplification, optimisation rules will be derived for the design of meridian gyroscopes, thus becoming less sensitive to disturbing motions. Based on the numerical results of the complete biased terms, the three instrument types and modifications thereof are compared with each other. In addition, the numerical results will be used to show that the observations of a "second harmonic" made on two pendulous suspended meridian gyroscopes must be due to random phenomena. Numéro de notice : 49810 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64034 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 49810-01 30.03 Livre Centre de documentation En réserve M-103 Disponible Identifying a low-frequency oscillation in Galileo IOV pseudorange rates / Daniele Borio in GPS solutions, vol 20 n° 3 (July 2016)
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Titre : Identifying a low-frequency oscillation in Galileo IOV pseudorange rates Type de document : Article/Communication Auteurs : Daniele Borio, Auteur ; Ciro Gioia, Auteur ; Neil Mitchison, Auteur Année de publication : 2016 Article en page(s) : pp 363 - 372 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] étalonnage en vol
[Termes IGN] Galileo
[Termes IGN] horloge atomique
[Termes IGN] mesurage de pseudo-distance
[Termes IGN] oscillateur
[Termes IGN] performance
[Termes IGN] vitesseRésumé : (Auteur) Galileo, the European global navigation satellite system, is in its in-orbit validation phase and the four satellites which have been available for some months now have allowed a preliminary analysis of the system performance. Previous studies have showed that Galileo will be able to provide pseudorange measurements more accurate than those provided by GPS. However, a similar improvement was not found for pseudorange rate observations in the velocity domain. This fact stimulated additional analysis of the velocity domain, and, in particular, an unintended oscillatory component was identified as the main error source in the velocity solution. The magnitude of such oscillation is less than 10 cm/s, and its period is in the order of few minutes. A methodology was developed to identify oscillatory components in the Galileo IOV pseudorange rate observables, and it was verified that the measurements from Galileo IOV PFM and Galileo IOV FM2 are affected by a small oscillatory disturbance. This disturbance stems from the architecture adopted for combining the frequency references provided by the two active clocks present in the Galileo satellites. The issue has been solved in Galileo IOV FM3 and Galileo IOV FM4, and the oscillatory component has been eliminated. We also propose a methodology for removing this unwanted component from the final velocity solution and for determining the performance that Galileo will be able to achieve. The analysis shows that Galileo velocity solution will provide a root-mean-square error of about 8 cm/s even in the limited geometry conditions achieved using only four satellites. This shows the potential of Galileo also in the determination of user velocity. Numéro de notice : A2016-630 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1007/s10291-015-0443-7 En ligne : http://dx.doi.org/10.1007/s10291-015-0443-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81833
in GPS solutions > vol 20 n° 3 (July 2016) . - pp 363 - 372[article]Inclusion of GPS clock estimates for satellites Sentinel-3A/3B in DORIS geodetic solutions / Petr Štěpánek in Journal of geodesy, vol 94 n° 12 (December 2020)
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Titre : Inclusion of GPS clock estimates for satellites Sentinel-3A/3B in DORIS geodetic solutions Type de document : Article/Communication Auteurs : Petr Štěpánek, Auteur ; Duan Bingbing, Auteur ; Filler Vratislav, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : n° 116 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Atlantique Sud
[Termes IGN] Cryosat
[Termes IGN] décalage d'horloge
[Termes IGN] données DORIS
[Termes IGN] horloge du récepteur
[Termes IGN] Jason
[Termes IGN] oscillateur
[Termes IGN] récepteur DORIS
[Termes IGN] récepteur GPS
[Termes IGN] rotation de la Terre
[Termes IGN] SARAL
[Termes IGN] Sentinel-3Résumé : (auteur) A unique architecture of Sentinel-3A and Sentinel-3B satellites includes the shared ultra-stable oscillator (USO) by the DORIS and GPS receivers. This concept enables to apply onboard GPS clock estimates in the DORIS processing substituting the DORIS polynomial clock model by the GPS epoch-wise model, together with a DORIS-specific clock offset. Such an approach is particularly profitable for the mitigation of the South Atlantic Anomaly (SAA) effect affecting the short-term frequency stability of the USO oscillator in the South America and South Atlantic region. The GPS clock behavior precisely maps the SAA effect and enables us to demonstrate a difference of the USO sensitivity to the SAA for Sentinel-3A and Sentinel-3B. We present world grid maps of clock time derivatives for both Sentinels, displaying a different sign of the direct effect and other differences in the USO memory/recovery effect. Moreover, we present the impact of SAA on 3D positioning where the largest SAA-related bias reaches several centimeters. We also determine an effect of the precise clock modeling on the Earth rotation parameter estimates. In addition to these improvements, the elimination of the SAA effect gives us an opportunity to get an almost SAA-free DORIS solution from Sentinel-3A and Sentinel-3B satellites. Using the combined solution of both Sentinels as a reference, we estimate the SAA effect on the DORIS beacon positions also for satellites Jason-2, Jason-3, Saral, Cryosat-2 and Hy-2A and find significant positioning biases for all the recent satellites except Saral. Numéro de notice : A2020-737 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-020-01428-x Date de publication en ligne : 18/11/2020 En ligne : https://doi.org/10.1007/s00190-020-01428-x Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96353
in Journal of geodesy > vol 94 n° 12 (December 2020) . - n° 116[article]Instrument of GRACE: GPS augments gravity measurements / C. Dunn in GPS world, vol 14 n° 2 (February 2003)
PermalinkIs the Jason-2 DORIS oscillator also affected by the South Atlantic Anomaly? / Pascal Willis in Advances in space research, vol 58 n° 12 (15 December 2016)
PermalinkLEO satellite clock analysis and prediction for positioning applications / Kan Wang in Geo-spatial Information Science, vol 25 n° 1 (March 2022)
PermalinkMeasuring phase scintillation at different frequencies with conventional GNSS receivers operating at 1 Hz / Viet Khoi Nguyen in Journal of geodesy, vol 93 n°10 (October 2019)
PermalinkOn the polarimetric variable improvement via alignment of subarray channels in PPAR using weather returns / Igor R. Ivić in IEEE Transactions on geoscience and remote sensing, Vol 59 n° 3 (March 2021)
PermalinkOptimizing Indoor GPS performance: receiver frequency standards / L.D. Vittorini in GPS world, vol 14 n° 11 (November 2003)
PermalinkPerformance of miniaturized atomic clocks in static laboratory and dynamic flight environments / Ankit Jain in GPS solutions, vol 25 n° 1 (January 2021)
PermalinkLa physique en MP-PC 1ère année et dans les classes préparatoires aux grandes écoles scientifiques, 5. Volume 5, Mécanique : vibrations, ondes / P. Alais (1969)
PermalinkPrecise onboard time synchronization for LEO satellites / Florian Kunzi in Navigation : journal of the Institute of navigation, vol 69 n° 3 (Fall 2022)
PermalinkTechnical documentation for shipboard receivers / National security industrial association of usa (1967)
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