摘要： 分析临近空间移动信道的传输特性，包括多径衰落、阴影效应、多普勒效应3个方面。基于GWSSUS模型提出临近空间通信信道模型，根据途中飞行状态分别建立远距、近距和过顶3种情况的模型。对各飞行状态进行误码率特性进行仿真，结果表明，该模型能较为真实地反映临近空间通信信道的特性。

关键词: 多径衰落, 阴影效应, 多普勒效应, GWSSUS模型, 临近空间

Abstract: This paper analyzes the transfer characteristic of the mobile communication channel on nearby space, including multipath fading, shadow effect and Doppler effect. On the basis of GWSSUS model, it proposes near space communications model of the channel. According to the state of flight, long-distance, short-range and over the top models are respectively built up. The bit error rate of the three flight states are simulated. Simulation results show that the model is able to reflect a more realistic approach of space communication channel characteristics.

Key words: multipath fading, shadow effect, Doppler effect, GWSSUS model, nearby space

中图分类号: 

• TN915