Results 1 to 10 of about 732 (120)
Results in Physics, 2021 Increasing experimental and theoretical results have confirmed that the anisotropy of turbulence cells cannot be ignored in the atmospheric turbulence. The satellite-to-ground downlink is the important part of satellite optical communication network, so ...
Chao Zhai
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Effects of atmospheric turbulence on fiber-coupled DPSK system in Satellite-to-Ground downlink
Results in Physics, 2018 Fiber-coupled differential phase-shift keying (DPSK) modulation is potentially an effective approach for further high-speed satellite lasercom, due to the high detection sensitivity, low linewidth requirements, and uncalled-for complex phase-locked loop ...
Qingbo Yang +6 more
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Aerospace, 2022 In the multi-satellite and multi-ground station downlink task scheduling problem, the waiting time from the proposal of the task to the execution will affect its validity.
Yan Liu, Shengyu Zhang, Haiying Hu
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New Journal of Physics, 2023 The goal of the space-based quantum network is to form the backbone of the quantum internet for long-distance secure data transfer, networked distributed quantum information processing, and other applications.
Xingyu Wang +6 more
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Enhanced Uplink Quantum Communication With Satellites via Downlink Channels
IEEE Transactions on Quantum Engineering, 2021 In developing the global quantum Internet, quantum communication with low-earth-orbit satellites will play a pivotal role. Such communication will need to be two way: effective not only in the satellite-to-ground (downlink) channel but also in the ground-
Eduardo Villasenor +4 more
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Satellite-to-ground optical downlink model using mode mismatching multi-mode photonic lanterns
Optics Express, 2023 Photonics lanterns (PLs) provide an effective mode diversity solution to mitigate atmospheric turbulence interference in free-space optical communications (FSOC). This paper presents mode-mismatching multimode photonic lanterns (MM-PLs) for diversity receiver in satellite-to-ground downlink scenarios. Our study evaluates the coupling characteristics of
Wenjie, Guo +7 more
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Engineering Reports, 2021 This paper discusses the dynamic communication link aspects of IIT Madras student Satellite (IITMSAT). It is a Low‐Earth Orbits satellite which has limited Attitude Determination and Control System (ADCS) ability to align one of its body axes with the ...
Rajavardhan Talashila +1 more
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Remote Sensing, 2023 This paper investigates a low-Earth orbit (LEO) satellite downlink for high-speed data communication in interference situations. A choke ring horn type antenna is used as the data transmitting antenna with an isoflux pattern in the LEO satellite, which ...
Eunjung Kang +6 more
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Q-Band LEO Earth Observation Data Downlink: Radiowave Propagation and System Performance
IEEE Access, 2021 Earth Exploration Satellite Service (EESS) systems gather data about the Earth and its natural phenomena. Frequency bands traditionally employed by high-rate telemetry to download data from the satellite to the ground station, such as the X band (8 GHz),
Felix Cuervo +3 more
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Electronics, 2022 Free Space Optics (FSO) technology enabling next-generation near-Earth communication is prone to severe propagation losses due to atmospheric-turbulence-induced fading and Mie scattering (clouds). As an alternative to the real-time evaluation of the weather effects over optical signal, a state-of-the-art laboratory testbed for verification of slant APD-
Hristo Ivanov +3 more
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