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Lightweight, mobile free-space optical communications in disaster scenarios for transmission of Earth observation data: feasibility study

Topcu, Onur and Henniger, Hennes and Grobe, Liane and Haardt, Martin and Mitschele-Thiel, Andreas and Simon, Tobias (2011) Lightweight, mobile free-space optical communications in disaster scenarios for transmission of Earth observation data: feasibility study. In: Proc. SPIE, 8162. SPIE Press. Free-Space and Atmospheric Laser Communications XI, San Diego, USA.

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Abstract

Free-space optical (FSO) links are an effective alternative to radio frequency (RF) to handle high-rate data transmission in case of a general communication service failure in disaster scenarios. Establishing high data rate links under the impacts of extreme environmental conditions, like the unregulated RF spectrum, is a very challenging issue. This paper focuses on multicopter (e.g., quadrocopter or hexacopter) based earth observation systems. Its main objective is to show that FSO communication can provide a high-rate link for transmitting earth observation data from a multicopter to a ground station, even under environmental disaster conditions. Before analyzing the feasibility of such an optical multicopter system, the main system structure will be discussed in detail. Several system designs will be compared and evaluated based on link budget calculations. In this process, a novel Grating Light Valve (GLV) retroreflector modulator technology will be introduced in this work. The study will emphasize that a reliable 100 Mbit/s FSO data transmission will be feasible to provide a downlink capacity for multicopter based earth observation systems.

Document Type:Conference or Workshop Item (Paper)
Additional Information: doi:10.1117/12.898800
Title:Lightweight, mobile free-space optical communications in disaster scenarios for transmission of Earth observation data: feasibility study
Authors:
AuthorsInstitution or Email of Authors
Topcu, OnurTechnische Universität Ilmenau
Henniger, HennesHennes.Henniger@dlr.de
Grobe, Liane Technische Universität Ilmenau
Haardt, MartinTechnische Universität Ilmenau
Mitschele-Thiel, AndreasTechnische Universität Ilmenau
Simon, TobiasTechnische Universität Ilmenau
Date:2011
Journal or Publication Title:Proc. SPIE
Refereed publication:Yes
In ISI Web of Science:No
Volume:8162
Editors:
EditorsEmail
Majumdar, Arun K. UNSPECIFIED
Davis, Christopher C. UNSPECIFIED
Publisher:SPIE Press
Status:Published
Keywords:free-space optics (FSO), retroreflector, multicopter, quadrocopter, multiple quantum well (MQW) modulator, grating light valve (GLV) technology
Event Title:Free-Space and Atmospheric Laser Communications XI
Event Location:San Diego, USA
Event Type:international Conference
Organizer:SPIE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Datenakquisition und Produktgenerierung
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > International Ground Segment
Deposited By: Hennes Henniger
Deposited On:31 Jul 2013 09:43
Last Modified:31 Jul 2013 09:43

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