Synthesis of chaofic pulse-train generator and its application to secure multiplex communication

本研究旨在构建一种基于混沌脉冲串发生器的高效保密多路通信系统的基础理论。主要结果如下：*我们综合了一种产生各种混沌脉冲串的电路，并从理论上阐明了电路的动力学。*我们阐明了由于施加了更高频率的周期输入，混沌脉冲串可以通过离散化状态变成各种稳定的周期脉冲串。我们建立了利用周期脉冲串作为丰富的编码源的基本理论。*我们开发了稳定的周期脉冲串的解复用系统，并构建了将该系统发展成更高功能保密多路通信系统的基础理论。*实现了一些用于混沌产生、脉冲串稳定和脉冲串解复用的电路。这些电路设计适合于在芯片上实现。部分理论结果在实验室中得到了验证。

This research has been aimed to construct basic theories to develop an efficient secure multiplex communication system based on chaotic pulse-train generators. The major results are as the following :*We have synthesized a circuits that generates various chaotic pulse-train, and have clarified the circuit dynamics theoretically.*We have clarified that chaotic pulse-train can be changed into various stable periodic pulse-trains by discretizing state due to application of higher frequency periodic inputs. We then have constructed a basic theory to use the periodic pulse-trains as rich coding sources.*We have developed a demultiplex system of the stabilized periodic pulse-trains, and have constructed a basic theory to develop the system into higher functional secure multiplex communication systems.*Some circuits have been implemented for chaos generation, pulse-train stabilization, and pulse-train demultiplexing. These circuits designs are suitable for realization on chips. Some of the theoretical results were verified in the laboratory.