摘要
自由空间紫外光非视距通信能够在复杂气候条件下、于复杂地形区域为一定范围的集群后勤保障行动提供应急信息支持。建立了自由空间紫外光非视距通信系统大气信道基本模型，分析了系统光束孔径角和通信距离对通信效果的影响，探讨了提高系统通信能力的策略。模拟结果证明：紫外光非视距通信系统在半径1km左右范围内能够保持较好的通信效果，满足小范围集群后勤应急保障需要。该结果可为发展复杂环境下后勤保障应急通信系统提供相应借鉴。
The free-space uhraviolet non-line-of-sight communication system can provide steady emergency communication support for logistical guarantee action. In this paper, the basic model of NLOS communication system atmospheric channel has been built,the influence of the transmission distance and the focal angle of beam on the system＇ s performance is also analyzed. The following conclusion is got with the simulation results ： the UV NLOS communication system is effective in the scope of about semidiameter 1 km, and it meets the needs of the logistical emergency guarantee. A reference for the development of logistical guarantee emergency communication system under the complicated environment is provided.
出处
《后勤工程学院学报》
2009年第6期74-78,共5页
Journal of Logistical Engineering University
关键词
后勤保障
应急通信
非视距
紫外光通信
大气信道
logistical guarantee
emergency communication
NLOS
ultraviolet communication
atmospheric channel
