1–20 von 29 Ergebnissen
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    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 ...

    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 ...
    Schlagwörter: Free-Space Optical Communications

    DEEP-SPACE OPTICAL COMMUNICATIONS POINTING CONTROL DESIGN

    Sandnas, Matt / Spencer, David B. | 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

    ROBUST CISLUNAR TRAJECTORY OPTIMIZATION VIA MIDCOURSE CORRECTION AND OPTICAL NAVIGATION SCHEDULING

    Sandnas, Matt / Spencer, David B. | 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

    OPTICAL NAVIGATION ATTITUDE ESTIMATION AND CALIBRATION PERFORMANCE IMPROVEMENT USING OUTLIER REJECTION

    Sandnas, Matt / Spencer, David B. | Springer Verlag | 2024

    Spacecraft optical navigation (OpNav) systems process a sequence of images with celestial bodies against a star

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

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

    Sandnas, Matt / Spencer, David B. | Springer Verlag | 2024
    -based navigation and observation capabilities which lend themselves to autonomy. This paper demonstrates that relative optical measurements ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    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

    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
    Navigation has a successful track record in developing Free Space Optical (FSO) terminals for flying platforms like stratospheric balloons, aircrafts ...

    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
    Schlagwörter: optical flow regularisation

    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
    Digital image processing methods represent a viable and well acknowledged alternative to strain gauges and interferometric techniques for ...
    Verlag: SPIE, the International Society for Optical Engineering , Ghent University Academic Bibliography
    Schlagwörter: Technology and Engineering , OPTICAL-FLOW

    VISUAL ODOMETRY FOR PRECISION LUNAR LANDING

    Sandnas, Matt / Spencer, David B. | Springer Verlag | 2024
    array of sensors that includes an inertial measurement unit (IMU), optical camera (OpCam), and a laser range finder sensor (LRFS) as well a ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    TERMINAL TRACKING FOR THE LUCY TROJAN ASTEROID MISSION

    Sandnas, Matt / Spencer, David B. | 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

    TOWARDS ARAMIS VISION-BASED SMART SENSOR FOR UNCOOPERATIVE RENDEZVOUS

    Sandnas, Matt / Spencer, David B. | 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

    LOW-THRUST TRAJECTORY OPTIMIZATION FOR THE SOLAR SYSTEM PONY EXPRESS

    Sandnas, Matt / Spencer, David B. | 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

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

    Sandnas, Matt / Spencer, David B. | 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

    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
    This paper presents our solution for enabling a quadrotor helicopter to autonomously navigate unstructured and unknown indoor environments ...

    Practical Applications for UAS Designed to Assist Climatologists in Studying Toxic Gas Emissions Relative to Climate Change

    Godfrey, Ian / Brenes, José Pablo Sibaja | Springer Verlag | 2023
    such as spectrometers which can be used for Differential Optical Absorbance Spectroscopy (DOAS) or thermal cameras designed to detect thermal ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering

    Planning of a Multi Sensor System for Human Activities Space – Aspects of Iso-disparrity Surface

    Freier Zugriff
    Chen, Jiandan / Khatibi, Siamak / Wirandi, Jenny et al. | BASE | 2007
    The Intelligent Vision Agent System, IVAS, is a system for automatic target detection, identification and information processing for use in ...
    Verlag: Florence : SPIE--The International Society for Optical Engineering , BTH - Blekinge Institute of Technology: Publications (DIVA)

    TESS Lens-Bezel Assembly Modal Testing

    Dilworth, Brandon J. / Karlicek, Alexandra | Springer Verlag | 2017
    Abstract The Transiting Exoplanet Survey Satellite (TESS) program, led by the Kavli Institute for ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering , Engineering Acoustics

    Localizing Perturbed Objects in a Room with Reflective Boundaries Using Dispersed Acoustic Measurements

    Gassen, Michael J. / Marts, Ian C. / Roberts, Mitchell J. et al. | Springer Verlag | 2021
    multiple scattering medium. One of the most popular methods for perturbation localization is time-reversal, which is the process of using sensors ...
    Verlag: Springer International Publishing , Cham
    Schlagwörter: Engineering