自由空间保密光通信的研究及其实现

The research of security aspects of free-space optical communication

利用Mie散射理论分析论证了自由空间光通信传输的光信号在信道外被截获的可能性。提出了两种适于自由空间光通信图像保密通信的方法,并对这两种方法的性能进行了比较。设计并研制了实验系统。利用所提出的方法实现了自由空间光通信的图像保密传输。

The security of free-space laser communication system was proved not as good as thought. The probability of be wiretapped was proved. Two image encryption methods were presented and compared, A experiment system of free-space optical communication was designed. The image secure communication is realized by the mentioned encryption methods with this system.