Implementation & Performance Investigation of Dicode PPM over Dispersive Optical Channels [PDF]
This work is concerned with the development and investigation of a Dicode PPM (DiPPM) system. A DiPPM coder was developed to code any input PCM signal into DiPPM format. A further investigation took place on the DiPPM spectrum and associated output.
Charitopoulos, Romanos
core +4 more sources
Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]
, 2006 A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus +9 more
core +1 more source
Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]
, 2007 Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll +13 more
core +1 more source
Results of the Optical Downlink Experiment KIODO from OICETS Satellite to Optical Ground Station Oberpfaffenhofen (OGS-OP) [PDF]
, 2007 Optical LEO downlinks from the Japanese OICETS to the optical ground station built by the German Aerospace Center (DLR) near Munich have been performed. This was the first optical LEO downlink on European grounds.
Perlot, Nicolas +13 more
core +1 more source
Magneto–Optical Kerr Effect Microscopy Investigation on Permalloy Nanostructures [PDF]
, 2013 This thesis focuses on the investigation of magnetic domains in ultrasmall permalloy (Ni80Fe20) structures down to nanometre size. Magnetic domains and domain walls in nano objects are often observed using a very high resolution and high power microscope
Bin Haji Hujan, Zulzawawi
core +6 more sources
Optical investigation of GaNAs [PDF]
AIP Conference Proceedings, 1999 A systematic study of the energy and time-resolved photoluminescence of GaInP/GaNxAs1−x double heterostructures has been performed for 0⩽x⩽1.3%. A large temperature-dependent optical-bowing coefficient (about 20–25 eV) is observed and the bandgap variation with temperature is found to depend on the nitrogen content.
Keyes, B. M. +7 more
openaire +1 more source
Mechanical properties of basalt fiber/ epoxy resin composites [PDF]
INCAS BulletinThis paper presents a study regarding the obtaining, characterizing and mechanically testing a new laminar composite material, consisting of epoxy resin reinforced with basalt plain fabric. The composites were obtained by manual lay-up, cross-link stage
Cristina - Elisabeta PELIN, George PELIN
doaj +1 more source
Evaluation of Choroidal Thickness Using Optical Coherent Tomography: A Review
Frontiers in Medicine, 2021 The choroid is the main source of blood and nourishment supply to the eye. The dysfunction of the choroid has been implicated in various retinal and choroidal diseases.
Rui Xie +6 more
doaj +1 more source
Evaluation techniques for optical analysis of hybrid rocket propulsion
Journal of Fluid Science and Technology, 2016 This article summarizes recent results of data evaluation techniques obtained with optical investigations on the combustion behavior of hybrid rocket fuels. Tests are performed in a 2D slab burner configuration with windows on two sides.
Anna PETRAROLO, Mario KOBALD
doaj +1 more source
Numerical Investigation of Optical Burst Switching
Communications, 2008 The simulation analysis of aphysical layer of the "all optical burst switching" using aVPI Photonics™ simulation program is presented in this article. The optical burst networks adopt dedicated control channel to transmit headers of burst, at the same ...
Milan Dado +3 more
doaj +1 more source