排序方式: 共有6条查询结果,搜索用时 15 毫秒
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Stepan Tulyakov Anton Ivanov Nicolas Thomas Victoria Roloff Antoine Pommerol Gabriele Cremonese Thomas Weigel Francois Fleuret 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》2018,61(1):487-496
There are many geometric calibration methods for “standard” cameras. These methods, however, cannot be used for the calibration of telescopes with large focal lengths and complex off-axis optics. Moreover, specialized calibration methods for the telescopes are scarce in literature. We describe the calibration method that we developed for the Colour and Stereo Surface Imaging System (CaSSIS) telescope, on board of the ExoMars Trace Gas Orbiter (TGO). Although our method is described in the context of CaSSIS, with camera-specific experiments, it is general and can be applied to other telescopes. We further encourage re-use of the proposed method by making our calibration code and data available on-line. 相似文献
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Markus J. Aschwanden Norma B. Crosby Michaila Dimitropoulou Manolis K. Georgoulis Stefan Hergarten James McAteer Alexander V. Milovanov Shin Mineshige Laura Morales Naoto Nishizuka Gunnar Pruessner Raul Sanchez A. Surja Sharma Antoine Strugarek Vadim Uritsky 《Space Science Reviews》2016,198(1-4):47-166
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Lasek Andrzej Brun Edmond Antoine 《IEEE transactions on aerospace and electronic systems》1967,(3):460-464
An attempt to employ a magnetically driven shock tube as a tool for aerodynamic studies of high velocity and high enthalpy flows is described. Examples of results are given. 相似文献
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Panning Mark P. Lognonné Philippe Bruce Banerdt W. Garcia Raphaël Golombek Matthew Kedar Sharon Knapmeyer-Endrun Brigitte Mocquet Antoine Teanby Nick A. Tromp Jeroen Weber Renee Beucler Eric Blanchette-Guertin Jean-Francois Bozdağ Ebru Drilleau Mélanie Gudkova Tamara Hempel Stefanie Khan Amir Lekić Vedran Murdoch Naomi Plesa Ana-Catalina Rivoldini Atillio Schmerr Nicholas Ruan Youyi Verhoeven Olivier Gao Chao Christensen Ulrich Clinton John Dehant Veronique Giardini Domenico Mimoun David Thomas Pike W. Smrekar Sue Wieczorek Mark Knapmeyer Martin Wookey James 《Space Science Reviews》2017,211(1-4):611-650
Space Science Reviews - The InSight lander will deliver geophysical instruments to Mars in 2018, including seismometers installed directly on the surface (Seismic Experiment for Interior Structure,... 相似文献
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Aymeric Spiga Don Banfield Nicholas A. Teanby François Forget Antoine Lucas Balthasar Kenda Jose Antonio Rodriguez Manfredi Rudolf Widmer-Schnidrig Naomi Murdoch Mark T. Lemmon Raphaël F. Garcia Léo Martire Özgür Karatekin Sébastien Le Maistre Bart Van Hove Véronique Dehant Philippe Lognonné Nils Mueller Ralph Lorenz David Mimoun Sébastien Rodriguez Éric Beucler Ingrid Daubar Matthew P. Golombek Tanguy Bertrand Yasuhiro Nishikawa Ehouarn Millour Lucie Rolland Quentin Brissaud Taichi Kawamura Antoine Mocquet Roland Martin John Clinton Éléonore Stutzmann Tilman Spohn Suzanne Smrekar William B. Banerdt 《Space Science Reviews》2018,214(7):109
In November 2018, for the first time a dedicated geophysical station, the InSight lander, will be deployed on the surface of Mars. Along with the two main geophysical packages, the Seismic Experiment for Interior Structure (SEIS) and the Heat-Flow and Physical Properties Package (HP3), the InSight lander holds a highly sensitive pressure sensor (PS) and the Temperature and Winds for InSight (TWINS) instrument, both of which (along with the InSight FluxGate (IFG) Magnetometer) form the Auxiliary Sensor Payload Suite (APSS). Associated with the RADiometer (RAD) instrument which will measure the surface brightness temperature, and the Instrument Deployment Camera (IDC) which will be used to quantify atmospheric opacity, this will make InSight capable to act as a meteorological station at the surface of Mars. While probing the internal structure of Mars is the primary scientific goal of the mission, atmospheric science remains a key science objective for InSight. InSight has the potential to provide a more continuous and higher-frequency record of pressure, air temperature and winds at the surface of Mars than previous in situ missions. In the paper, key results from multiscale meteorological modeling, from Global Climate Models to Large-Eddy Simulations, are described as a reference for future studies based on the InSight measurements during operations. We summarize the capabilities of InSight for atmospheric observations, from profiling during Entry, Descent and Landing to surface measurements (pressure, temperature, winds, angular momentum), and the plans for how InSight’s sensors will be used during operations, as well as possible synergies with orbital observations. In a dedicated section, we describe the seismic impact of atmospheric phenomena (from the point of view of both “noise” to be decorrelated from the seismic signal and “signal” to provide information on atmospheric processes). We discuss in this framework Planetary Boundary Layer turbulence, with a focus on convective vortices and dust devils, gravity waves (with idealized modeling), and large-scale circulations. Our paper also presents possible new, exploratory, studies with the InSight instrumentation: surface layer scaling and exploration of the Monin-Obukhov model, aeolian surface changes and saltation / lifing studies, and monitoring of secular pressure changes. The InSight mission will be instrumental in broadening the knowledge of the Martian atmosphere, with a unique set of measurements from the surface of Mars. 相似文献
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基于虚拟现实的血管内介入手术三维导丝运动模拟 总被引:1,自引:0,他引:1
导管和导丝在血管中的运动模拟在介入手术训练、计划及术中辅助治疗中具有重要意义。本文提出了一种快速有效的碰撞消除方法,开发了实时三维介入手术模拟系统,以模拟导管或导丝在实际血管中的运动行为。采用OpenGL图形库检测导管或导丝与血管壁之间的碰撞,通过几何分析和旋转角传播方法消除碰撞,最后对导管或导丝模型施加松弛过程,使其状态与实际状态更加吻合。实验结果表明,导管或导丝模型的运动状态与给定的材料参数密切相关,松弛过程使其状态更加自然,模拟可满足实时要求,方法可靠有效。 相似文献
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