摘要
为了快速评估水下激光通信系统的最大通信距离,提出了一种半解析的方法。对于给定的水下光学信道,仅仅需要进行两次仿真就可以获得系统的最大通信距离。即使系统参数改变,也不再需要进行额外仿真。根据水下光学信道参数,通过简单的数学运算获得了两个参考距离。并针对每个参考距离各进行了一次仿真。最后根据理论分析和仿真结果,推导出了最大通信距离的计算公式。为了验证该计算方法的有效性,将计算结果与实验结果进行了对比。对比结果表明两者吻合得很好,故所提出的半解析方法的有效性得以证实。
A semi-analytical method of rapidly estimating the maximum communication distance of an underwater laser communication system is proposed. For a given underwater optical channel, only two simulation times are needed to obtain the maximum communication distance. Once the system conditions are changed, no more simulations are needed. Two reference distances through simple mathematical operations based on the parameters of underwater optical channel are initially deduced. Than a separate simulation is conducted for each reference distance. Finally, an equation for calculating the maximum communication distance is deduced based on theoretical analysis. The simulation results are compared with experimental ones and are found to coincide well with each other. The validation of the semi-analytical method is proved.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2015年第8期175-183,共9页
Chinese Journal of Lasers
基金
国家863计划(2014AA093301)
国家自然科学基金(61205214)
关键词
光通信
水下激光通信
半解析方法
最大通信距离
蒙特卡罗法
optical communications
underwater laser communication
semi-analytical method
maximum communication distance
Monte Carlo method
