1–20 von 32 Ergebnissen
|

    High data-rate optical communication payload for CubeSats

    Freier Zugriff
    Rödiger, Benjamin / Menninger, Christian / Fuchs, Christian et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2020
    version of DLRs optical communication payload OSIRIS for small LEO satellites. DLRs Institute of Communications and Navigation has developed the ...

    International trends in applied optics

    Society of Photo-optical Instrumentation Engineers | TIBKAT | 2002
    . Nanotechnology: 17. Nano- and atom photonics / Motoichi Ohtsu -- V. Recognition and sensing: 18. Binary image decompositions for nonlinear optical ...
    Verlag: SPIE Optical Engineering Press , Bellingham, Washington

    Laser Guide Stars for Optical Free-Space Communications

    Freier Zugriff
    Mata Calvo, Ramon / Bonaccini Calia, Domenico / Barrios, Ricardo et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2017
    ground to space optical communications. Atmospheric turbulence causes strong signal fluctuations in the uplink, due to scintillation and beam ...
    Verlag: SPIE
    Schlagwörter: Free-Space Optical Communications

    OPTICAL ONLY CO-ESTIMATION AND MANEUVER CLASSIFICATION IN THE CISLUNAR REGIME

    Greaves, Jesse A. / Scheeres, Daniel J. | Springer Verlag | 2024
    proves that relative optical measurements produce a fully observable dual spacecraft system. Subsequently, the Optimal Control Based Estimator is ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    DEEP-SPACE OPTICAL COMMUNICATIONS POINTING CONTROL DESIGN

    Liu, John / Boussalis, Dhemetrios / Conway, Dylan et al. | Springer Verlag | 2024

    This paper provides an overview of pointing control design for NASA’s Deep Space Optical Communications (DSOC

     ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    OPTICAL NAVIGATION ATTITUDE ESTIMATION AND CALIBRATION PERFORMANCE IMPROVEMENT USING OUTLIER REJECTION

    Samaan, Malak / Lovelace, Ronney / Pécourt, Riana et al. | Springer Verlag | 2024
    desirable to recognize the background stars in OpNav images to better align the image. While many image processing algorithms exist for finding ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    ROBUST CISLUNAR TRAJECTORY OPTIMIZATION VIA MIDCOURSE CORRECTION AND OPTICAL NAVIGATION SCHEDULING

    Geller, David / Shuster, Simon / Woffinden, David et al. | Springer Verlag | 2024
    flight with the goal of injecting into a Near-Rectilinear Halo Orbit for rendezvous with a target vehicle. Two complementary optimization ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    TERMINAL TRACKING FOR THE LUCY TROJAN ASTEROID MISSION

    Good, Philip G. / Faiks, Preston / Pisano, William J. | Springer Verlag | 2024
    from earth for the encounters, the high relative velocities and sun incidence angles on approach, and the limited number of Earth observations ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    Application of Proximal Alternating Linearized Minimization (PALM) and inertial PALM to dynamic 3D CT

    Freier Zugriff
    Djurabekova, N / Goldberg, A / Hauptmann, A et al. | BASE | 2019
    The foot and ankle is a complex structure consisting of 28 bones and 30 joints that changes from being completely mobile when positioning ...
    Verlag: SPIE , University College London: UCL Discovery
    Schlagwörter: optical flow regularisation

    Pre-correction Adaptive Optics performance of a 10 km Laser Link

    Freier Zugriff
    Saathof, Rudolf / den Breeje, Remco / Klop, Wimar et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2019
    For the next generation of very high throughput communication satellites, free-space optical (FSO) communication between ground stations ...
    Schlagwörter: free space optical communications , Optical satellite communication

    LOW-THRUST TRAJECTORY OPTIMIZATION FOR THE SOLAR SYSTEM PONY EXPRESS

    Pascarella, Alex / Woollands, Robyn / Pellegrini, Etienne et al. | Springer Verlag | 2024

    We present a method for designing and optimizing Earth-Mars cycler orbits for the Solar System Pony Express (SSPE

     ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    Demonstration of an FSO/RF hybrid communication system on aeronautical and space applications

    Freier Zugriff
    Rödiger, Benjamin / Ginthör, David / Pacheco, Jorge et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2020
    , due to the technical improvement of modern sensor systems. The resulting demands for higher data rates on airborne and space platforms ...

    Dense and accurate motion and strain estimation in high resolution speckle images using an image-adaptive approach

    Freier Zugriff
    Cofaru, Corneliu / Philips, Wilfried / Van Paepegem, Wim | BASE | 2011
    information present. Subsequently the Newton-Raphson digital image correlation technique is applied to calculate the corresponding motion for each ...
    Verlag: SPIE, the International Society for Optical Engineering , Ghent University Academic Bibliography
    Schlagwörter: Technology and Engineering , OPTICAL-FLOW

    VISUAL ODOMETRY FOR PRECISION LUNAR LANDING

    Molina, Giovanni / Hansen, Michael / Getchius, Joel et al. | Springer Verlag | 2024
    between two image captures. In this paper, we detail the development and implementation of this measurement for the Nova-C lander, demonstrate our ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    Stereo vision and laser odometry for autonomous helicopters in GPS-denied indoor environments

    Freier Zugriff
    Prentice, Samuel James / He, Ruijie / Bachrach, Abraham Galton et al. | DSpace@MIT | 2009
    , we present results in this direction, describing the key components for autonomous navigation using either of the two sensors separately. ...
    Verlag: SPIE

    Creating the first Bose-Einstein condensate in space

    Freier Zugriff
    Lachmann, M.D. / Ahlers, H. / Becker, D. et al. | BASE | 2018
    source for such an interferometric measurement. The findings of the mission will contribute to the NASA CAL project and BECCAL (NASA and DLR ...
    Verlag: Bellingham, WA : SPIE - International Society for Optical Engineering , Institutional Repository of Leibniz Universität Hannover

    DESIGN OF THE ON-BOARD IMAGE PROCESSING OF THE MILANI MISSION

    Pugliatti, M. / Franzese, V. / Rizza, A. et al. | Springer Verlag | 2024
    both scientific and technological: to study and characterize the asteroid environment, and to demonstrate the use of CubeSat technologies for ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    TOWARDS ARAMIS VISION-BASED SMART SENSOR FOR UNCOOPERATIVE RENDEZVOUS

    Laurent, Majewski / Benoit, Gelin / Arnaud, Colmon | Springer Verlag | 2024

    Rendezvous sensors have been widely used in the frame of Human exploration, mainly for docking purpose. LIDAR and

     ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    CRATER NAVIGATION AND TIMING FOR AUTONOMOUS LUNAR ORBITAL OPERATIONS IN SMALL SATELLITES

    McLaughlin, Z R. / Gold, Rachael E. / Catalan, Sofia G. et al. | Springer Verlag | 2024
    CNT approach requires three algorithms running on-board the spacecraft: detection of craters in an optical image, identification of those ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    TINYV3RSE: THE DART VISION-BASED NAVIGATION TEST BENCH

    Panicucci, Paolo / Pugliatti, Mattia / Franzese, Vittorio et al. | Springer Verlag | 2024
    . These are focused on the image processing in a small-body mission and on the performance of an optical navigation algorithm about the Moon. ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering