基于分数阶Hilbert变换的多路加密

Multichannel Encryption Based on Fractional Hilbert Transform

基于分数阶Hilbert变换的单边带通信可以同时将分数阶旋转角度作为加密密钥,从而保证通信安全。但基于分数阶Hilbert变换的单边带通信加密技术只能让信号使用一个加密密钥。为了达到增大密钥空间以更有效地保证信息安全的目的,采用多通道滤波器组分路处理的方法,在减少了系统计算复杂度的基础上增大了密钥空间。

The SSB communication based on the fractional Hilbert transform can use fracational rotation angle as the en cryption key at the same time＇, so as to ensure the communications security effectively. But this technique can only use one en cryption key. In order to increase the cryptographic key space for the securer system, a method of the shunting processing for the multi-channel filter set is introduced. It can also reduce the computation complexity.