激光与光电子学进展, 2019, 56 (21): 210101, 网络出版: 2019-11-02
星地下行链路中多孔径相干光接收机性能分析 下载: 922次
Performance Analysis of Multi-Aperture Coherent Optical Receiver for Satellite-to-Ground Downlink
大气光学 大气湍流 气象条件 孔径平均 等比合并 误码率 atmospheric optics atmospheric turbulence weather conditions aperture averaging equal gain combining bit error rate
摘要
在考虑大气湍流效应、气象条件和孔径平均效应的条件下,对星地下行链路中基于等比合并算法的多孔径相干光接收机的性能进行研究,推导了其误码率(BER)分析模型,并基于该模型分析了各种湍流强度、气象条件和孔径大小对接收机灵敏度的影响。研究结果对于实际应用具有很好的指导意义。
Abstract
The performance of a multi-aperture coherent optical receiver based on the equal gain combining algorithm is analyzed for the satellite-to-ground downlink. Atmospheric turbulence, weather conditions, and aperture averaging effect are considered. The analytical model of bit error rate is deduced. Then the effects of the atmospheric turbulence, weather conditions, and aperture size on the sensitivity of the receiver are analyzed, which provides effective guidance for practical applications.
张晓玉, 崔晟, 刘德明, 江阳. 星地下行链路中多孔径相干光接收机性能分析[J]. 激光与光电子学进展, 2019, 56(21): 210101. Xiaoyu Zhang, Sheng Cui, Deming Liu, Yang Jiang. Performance Analysis of Multi-Aperture Coherent Optical Receiver for Satellite-to-Ground Downlink[J]. Laser & Optoelectronics Progress, 2019, 56(21): 210101.