Results 51 to 60 of about 547,647 (206)

An automated method for the evaluation of the pointing accuracy of Sun-tracking devices [PDF]

Atmospheric Measurement Techniques, 2017
The accuracy of solar radiation measurements, for direct (DIR) and diffuse (DIF) radiation, depends significantly on the precision of the operational Sun-tracking device.
D. J. Baumgartner, W. Pötzi, H. Freislich, H. Strutzmann, A. M. Veronig, H. E. Rieder   +5 more
doaj   +1 more source

DSM-Based Precise Pointing Angle Deviation Measurement Method for Beaconless Free Space Optical Communication

IEEE Photonics Journal, 2023
In free space optical (FSO) communication, acquisition, tracking and pointing (ATP) is the key technology to maintain a high-quality FSO link. Specifically, the detection of pointing angle deviation greatly affects the performance of ATP, especially ...
Xueyuan Ao, Yansheng Zou, Yang Zou, Qirun Fan, Xiaoxiao Dai, Chen Liu, Qi Yang, Deming Liu   +7 more
doaj   +1 more source

Magic Pointing for Eyewear Computers [PDF]

, 2015
In this paper, we propose a combination of head and eye movements for touchlessly controlling the "mouse pointer" on eyewear devices, exploiting the speed of eye pointing and accuracy of head pointing. The method is a wearable computer-targeted variation
Jalaliniya, Shahram, Mardanbegi, Diako, Pederson, Thomas   +2 more
core   +1 more source

High-Precision Bi-Directional Beam-Pointing Measurement Method Based on Space Solar Power Station System

Sensors
In the process of wireless energy transmission from a Space Solar Power Station (SSPS) to a satellite, the efficiency of energy transmission is closely related to the accuracy of beam control.
Xinyue Hou, Xue Li, Shun Zhao, Yinsen Zhang, Lulu Wang   +4 more
doaj   +1 more source

Isotropic and anisotropic pointing models [PDF]

, 2015
This paper describes an alternative approach for generating pointing models for telescopes equipped with serial kinematics, esp. equatorial or alt-az mounts.
Mező, György, Mészáros, László, Pál, András, Vida, Krisztián   +3 more
core   +2 more sources

A deep learning approach for predicting the antenna pointing error caused by transmission faults with simulation data

Scientific Reports
Reflector antenna has been widely used in deep space exploration, radar warning, and other fields, all of which requires high pointing accuracy. The antenna elevation bearings are the key component that guarantees its pointing accuracy, while any ...
Lihui Chen, Song Xue, Peiyuan Lian, Qian Xu, Meng Wang, Congsi Wang   +5 more
doaj   +1 more source

Progress toward a cosmic dust collection facility on space station [PDF]

, 1988
Scientific and programmatic progress toward the development of a cosmic dust collection facility (CDCF) for the proposed space station is documented. Topics addressed include: trajectory sensor concepts; trajectory accuracy and orbital evolution; CDCF ...
Carey, William C., Mackinnon, Ian D. R.
core   +1 more source

Conical-scan tracking with the 64-m-diameter antenna at goldstone [PDF]

, 1976
The theory and experimental work which demonstrated the feasibility of conical-scan tracking with a 64 m diameter paraboloid antenna is documented. The purpose of this scheme is to actively track spacecraft and radio sources continuously with an accuracy
Ohlson, J. E., Reid, M. S.
core   +1 more source

Accuracy and Efficiency in Fixed-Point Neural ODE Solvers [PDF]

Neural Computation, 2015
Abstract Simulation of neural behavior on digital architectures often requires the solution of ordinary differential equations (ODEs) at each step of the simulation. For some neural models, this is a significant computational burden, so efficiency is important.
Michael Hopkins, Steve Furber
openaire   +4 more sources

The cosmic ray shadow of the Moon observed with the ANTARES neutrino telescope

European Physical Journal C: Particles and Fields, 2018
One of the main objectives of the ANTARES telescope is the search for point-like neutrino sources. Both the pointing accuracy and the angular resolution of the detector are important in this context and a reliable way to evaluate this performance is ...
A. Albert, M. André, M. Anghinolfi, G. Anton, M. Ardid, J. -J. Aubert, J. Aublin, T. Avgitas, B. Baret, J. Barrios-Martít, S. Basa, B. Belhorma, V. Bertin, S. Biagi, R. Bormuth, J. Boumaaza, S. Bourret, M. C. Bouwhuis, H. Brânzaş, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, M. Chabab, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, J. A. B. Coelho, A. Coleiro, M. Colomer, R. Coniglione, H. Costantini, P. Coyle, A. Creusot, A. F. Díaz, A. Deschamps, C. Distefano, I. Di Palma, A. Domi, C. Donzaud, D. Dornic, D. Drouhin, T. Eberl, I. El Bojaddaini, N. El Khayati, D. Elsässer, A. Enzenhöfer, A. Ettahiri, F. Fassi, I. Felis, P. Fermani, G. Ferrara, L. A. Fusco, P. Gay, H. Glotin, T. Grégoire, R. Gracia Ruiz, K. Graf, S. Hallmann, H. van Haren, A. J. Heijboer, Y. Hello, J. J. Hernández-Rey, J. Hößl, J. Hofestädt, G. Illuminati, M. de Jong, M. Jongen, M. Kadler, O. Kalekin, U. Katz, N. R. Khan-Chowdhury, A. Kouchner, M. Kreter, I. Kreykenbohm, V. Kulikovskiy, C. Lachaud, R. Lahmann, D. Lefèvre, E. Leonora, G. Levi, M. Lotze, S. Loucatos, M. Marcelin, A. Margiotta, A. Marinelli, J. A. Martínez-Mora, R. Mele, K. Melis, P. Migliozzi, A. Moussa, S. Navas, E. Nezri, A. Nuñez, M. Organokov, G. E. Păvălaş, C. Pellegrino, P. Piattelli, V. Popa, T. Pradier, L. Quinn, C. Racca, N. Randazzo, G. Riccobene, A. Sánchez-Losa, M. Saldaña, I. Salvadori, D. F. E. Samtleben, M. Sanguineti, P. Sapienza, F. Schüssler, M. Spurio, Th. Stolarczyk, M. Taiuti, Y. Tayalati, A. Trovato, B. Vallage, V. Van Elewyck, F. Versari, D. Vivolo, J. Wilms, D. Zaborov, J. D. Zornoza, J. Zúñiga   +126 more
doaj   +1 more source