时空混沌跳扩信号发生器

Spatiotemporal Chaotic Hybrid DS/FH Signal Generator

基于时空混沌提出了一种新的跳扩信号发生器,通过时空混沌,不仅能增强系统的保密性,同时又能产生实时的直扩PN序列和跳频图案序列,而且PN序列和跳频序列的周期易于控制,可以任意加长。分析了所产生的时空混沌跳扩信号的性能,仿真结果表明,直扩PN序列和跳频图案序列都具有理想的平衡和相关特性。

A new hybrid DS/FH signal generator based on spatiotemporal chaos was proposed, in which not only the system security is strengthened by spatiotemporal chaos but also the real time PN codes and FH patterns are generated synchronously through a single mechanism. In this mechanism it is easier to control and change parameters for better security, and the period of PN spread-spectrum sequences and FH patterns are also easier to control and can be arbitrarily long. And some analyses about the properties of spatiotemporal chaotic hybrid DS/FH signal generated were also given. The simulation results show that not only the PN spread-spectrum sequences but also the frequency hopping patterns have ideal balance and correlation properties.