The ESA's optical ground station for the EDRS-A LCT in-orbit test campaign: upgrades and test results

Perdigués, J.; Sodnik, Zoran; Hauschildt, Harald; Sarasa, P.; Porte-Proust, F.; Wiegand, Matthias; Rochow, Christoph; Troendle, D.; Heine, F.

doi:10.1117/12.2296098

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…Because the coherent modulation has higher spectral efficiency than the incoherent modulation, the laser intersatellite links for MEO and GEO satellites that need to carry more complex and precise communication tasks are mostly modulated by the coherent modulation modes. For example, the EDRS-A [50] adopts BPSK modulation, the American LCRD [51] and the downlink transmission of JDRS [52] adopt DPSK modulation. At present, the LEO satellite laser communication and deep space exploration projects mainly adopt incoherent modulation.…”

Section: ) Modulation Modesmentioning

confidence: 99%

“…EDRS-A carried out the space laser communication with LEO satellite ''Sentry-1A''. It achieved a 1.8Gbps transmission rate with BPSK coherent modulation mode for relay services to around 40 LEO satellites every day [50]. The LCT of EDRS-C is set up on the platform developed by Small-GEO, which is successfully launched to GSO 31E position [61], [64].…”

Section: ) High/medium-orbit Laser Link Demonstrationsmentioning

confidence: 99%

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A Survey on Laser Space Network: Terminals, Links, and Architectures

Lin

Liu

et al. 2022

IEEE Access

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Due to the high directionality and short wavelength of laser transmission in space, satellite laser communication can achieve high speed, wide bandwidth, high precision, and high security with no electromagnetic spectrum constraints. It has become a promising direction to construct the laser space network. Recently, relative products, on-orbit demonstrations, and researches have been conducted on laser space networks. Considering this network as a graph, this paper presents a comprehensive survey from nodes, edges, to architectures of this graph, corresponding to laser communication terminals, laser space links, and laser space network architectures. For each content, current achievements are introduced and future trends are analyzed accordingly. Through this survey paper, we aim to present the prospect to develop laser space networks in the next space generation and provide potential research directions to interested researchers or engineers.

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Section: ) Modulation Modesmentioning

confidence: 99%

Section: ) High/medium-orbit Laser Link Demonstrationsmentioning

confidence: 99%

A Survey on Laser Space Network: Terminals, Links, and Architectures

Lin

Liu

et al. 2022

IEEE Access

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“…Several missions have been flown or are planned to demonstrate operational OLEODLs, namely, by JAXA, NICT, NASA/JPL, ESA, and DLR 15–21 . OGS installations at the same time are operated by DLR, NICT, JAXA, NASA/JPL, ESA, CNES, NRL (Naval Research Lab), DSTG (Defense Science Technology Group), and more 22–28 …”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17][18][19][20][21] OGS installations at the same time are operated by DLR, NICT, JAXA, NASA/JPL, ESA, CNES, NRL (Naval Research Lab), DSTG (Defense Science Technology Group), and more. [22][23][24][25][26][27][28] The principle of optical data downlinks implies steering the data-modulated laser beam during downlink phase to dynamically point towards the OGS. Such downlink contacts from LEO typically last few to 10 min, depending on orbit-altitude and maximum satellite elevation, and take place only a few times per day to one OGS location.…”

mentioning

confidence: 99%

Link budget calculation in optical LEO satellite downlinks with on/off‐keying and large signal divergence: A simplified methodology

Giggenbach

Knopp

Fuchs

2023

Satell Commun Network

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SummaryDirect‐to‐Earth transmissions with optical on/off‐keying are becoming the method of choice to realize telemetry downlinks from low Earth orbit satellites at highest data‐rates. Here, we review the calculation procedure for a practical assessment of the mean link budget in this space‐ground data communication technology. We present a comprehensive survey of the dynamic orbital and beam‐pointing effects as well as the impacts from atmospheric attenuation on the link performance. The paper provides an exhaustive review of the formulas commonly used and propounds a recipe to reliably estimate the received power on ground. An overview of typical data transmitter terminals, transmission channel parameters, and the according optical ground stations is provided. Comparison with measured received powers over transmitter elevation angle and the respective design estimates serves for verification.

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