Telecom &amp; scintillation first data analysis for DOMINO - laser communication between SOTA, onboard socrates satellite, and MEO OGS

Phung, Duy‐Hà; Samain, E.; Maurice, Nicolas; Albanesse, D.; Mariey, Hervé; Aimar, M.; Lagarde, G. M.; Artaud, Géraldine; Issler, J-L.; Védrenne, Nicolas; Velluet, M.-T.; Toyoshima, Morio; Akioka, Maki; Kolev, Dimitar; Munemasa, Yasushi; Takenaka, Hideki; Iwakiri, Naohiko

doi:10.1109/icsos.2015.7425073

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…OGSs on Tenerife, in California and inTokyo, have been established since the 1990s [23][24][25][26]. Newer -partly temporary -sites include Hawaii, White Sands in New Mexico, Oberpfaffenhofen near Munich, Observatoire de la Côte d'Azur (OCA) [27] and several more stations in Japan like Okinawa and Kashima. Other institutions also operate astronomical facilities in temporary use as ground stations in optical communication experiments.…”

Section: Optical Leo Downlink Experiments Overviewmentioning

confidence: 99%

Optical on–off keying data links for low Earth orbit downlink applications

Giggenbach

Moll

Schmidt

et al. 2018

Satellite Communications in the 5G Era

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Optical free-space links will shape the high-speed communications technology landscape for space missions substantially in the next years. The dramatically reduced signal spread-as compared to any radio frequency (RF) technology-provides a variety of advantages: increased power efficiency, the avoidance of interference and thus spectrum regulation issues, the inherent tap-and spoof-proofness and, most of all, the vastly increased data rates (DRs) will make this technology a 'game changer' comparable to the introduction of glass fibre instead of copper cables previously used in the global communication infrastructure. As one use case of optical space links high-speed geostationary data-relays for the repatriation of low Earth orbit (LEO) observation satellite telemetry have been tested and are currently implemented operationally by various space agencies [1-4]. Deep space missions will also boost their DRs by several orders of magnitude by sending their data to large optical receiver telescopes, NASA is currently transforming its Deep Space Network to an optical DNS, and we also see European developments in optical deep space communications [5-7]. In order to connect very high-throughput communication satellite systems to the Tbps-regime (Terabit-per-second), optical uplinks can solve the spectrum bottleneck that RF links would otherwise encounter [8]. In the LEO regime (inter-satellite, as well as optical LEO downlinks-OLEODL), distances are way shorter, allowing very high data rates while, at the same time, reducing the requirement for high system sensitivity (where complexity and thus costs generally increase with sensitivity). Instead, components and technologies that are close to commercial-off-the-shelf (COTS) from terrestrial fibre communications can be used, allowing both very high throughputs and moderate-to-low system costs. Using COTS components in inter-satellite as well as downlinks is also supported by the shorter life time of LEO missions, implying less radiation exposure of these components. In the last years, several demonstrations of OLEODL have been performed by various agencies [9-15], and its commercialisation will be seen in near future.

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Section: Optical Leo Downlink Experiments Overviewmentioning

confidence: 99%

Optical on–off keying data links for low Earth orbit downlink applications

Giggenbach

Moll

Schmidt

et al. 2018

Satellite Communications in the 5G Era

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“…Since nowadays most LEO transmitters deploy, or plan to, a transmission wavelength in the spectrum around 1550 nm for direct to earth links, channel characterization and measurements are in particular interesting with this wavelength which is used by the OPALS and SOTA terminals. Measurements with these sources and preliminary analysis are discussed in [9], [8], and [10]. In [9], measurements are discussed which were taken with the SOTA terminal and the MeO ground station at Caussols, France.…”

Section: Introductionmentioning

confidence: 99%

“…Measurements with these sources and preliminary analysis are discussed in [9], [8], and [10]. In [9], measurements are discussed which were taken with the SOTA terminal and the MeO ground station at Caussols, France. Apertures of 1.5 m, 0.4 m and 0.2 m were alternatingly used to measure the received power at 1549 nm within three passes.…”

Section: Introductionmentioning

confidence: 99%

LEO-ground scintillation measurements with the optical ground station Oberpfaffenhofen and SOTA/OPALS space terminals

et al. 2016

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The optical satellite-ground channel is turbulent and causes scintillation of the power received by a ground based telescope. Measurements are important to quantify the effect and evaluate common theory. A telescope with 40 cm primary mirror is used to measure the signals from the OPALS terminal on the International Space Station and the SOTA terminal on the SOCRATES satellite. The measurement instrument is a pupil camera from which images are recorded and intensity scintillation index, power scintillation index, probability density function of intensity and intensity correlation width are derived. A preliminary analysis of measurements from three satellite passed is performed, presented and discussed. The intensity scintillation index ranges from ~0.25 to ~0.03 within elevations of 26 to 66 deg. Power scintillation index varies from ~0.08 to ~0.006 and correlation width of intensity between ~11 and ~3 cm. The measurements can be used to estimate the fluctuation dynamics to be expected for a future operational ground receiver. The measurements are compared to model calculations based on the HV 5/7 -profile. Good agreement is observed to some part in the intensity scintillation index. Agreement is less for the power scintillation index and intensity correlation width. The reason seems to be a reduction of aperture averaging in some sections of the measurements due to increased speckle size. Finally, topics for future work are identified to improve the measurement analysis and deeper investigate the origin of the observed behavior.

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