Laser & Optoelectronics Progress, Volume. 60, Issue 23, 2327001(2023)
Effect of Snowfall on Communication Performance of Satellite Ground Quantum Link
Quantum satellite communication is an important part of global quantum secure communication network. In order to study the effect of snowfall on quantum satellite communication performance, first, based on the Gamma spectrum distribution function of snow particles and Mie scattering theory, the energy attenuation model of light quantum in snowfall environment is established. Then the relationship between the parameters such as snowfall intensity and the fidelity of the satellite-ground link, the channel establishment rate and the channel entanglement is studied, and the numerical simulation is carried out. Finally, in order to accurately simulate the impact of snow interference on the communication performance of satellite-ground links, a weighted noise channel model is introduced, and the impact of snow on the weighted noise channel capacity is analyzed. The results show that the snowfall intensity has a significant effect on the quantum energy and fidelity of light. When the transmission distance is 4.1 km and the snowfall intensity increases from 2.82
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Changchun Xue, Min Nie, Guang Yang, Meiling Zhang, Aijing Sun, Changxing Pei. Effect of Snowfall on Communication Performance of Satellite Ground Quantum Link[J]. Laser & Optoelectronics Progress, 2023, 60(23): 2327001
Category: Quantum Optics
Received: Nov. 29, 2022
Accepted: Feb. 10, 2023
Published Online: Dec. 11, 2023
The Author Email: Xue Changchun (534881507@qq.com)