电波科学学报2017，Vol.32Issue(4)：377-384,8.DOI:10.13443/j.cjors.2017072601
弱太阳闪烁对深空电波传播影响的预测模型
Weaken solar scintillation prediction model for EM wave propagation in deep space
徐冠军 1宋朝晖1
作者信息
- 1. 华东师范大学信息科学技术学院,上海200241
- 折叠
摘要
Abstract
Electromagnetic(EM) waves propagating through the solar corona irregularities suffer solar scintillation during superior solar conjunction.Considering the geometric of the communication model,the corona structure and the turbulence spectral model,a prediction model for both amplitude fluctuations,phase fluctuations and angle-of-arrival fluctuations is proposed with the weaken scintillation theory.The simulation results demonstrate that the solar corona parameters,such as the spectral index and the turbulence outer scale have a tremendous impact on the fluctuations.Besides,solar scintillation increases with the decreasing of the heliocentric distance and its impact can be reduced by enhancing the EM waves frequency.Furthermore,the proposed model shows great agreement with the observed data and its accuracy increases when the radio frequency gets larger.Therefore,our solar scintillation prediction model can be effectively applied in the future deep space exploration.关键词
深空通信/无线电波/太阳闪烁/湍涡不规则性/日径距离Key words
deep space communication/electromagnetic waves/solar scintillation/turbulence irregularities/heliocentric distance分类
信息技术与安全科学引用本文复制引用
徐冠军,宋朝晖..弱太阳闪烁对深空电波传播影响的预测模型[J].电波科学学报,2017,32(4):377-384,8.
