Construction of Chaotic System Based on Parameter Searching and Application in the Spread Spectrum Communication

摘要

The dynamic characteristic of non-linear system is BEcontrolled by the parameter in the chaotic system, and the state of dynamic system will change with the variation of the parameter. Based on the complexity analysis of the parameter variation in chaotic system, parameter variation sphere which causes chaos can be searched in collapse and non-linear map, the procedure from bifurcation to chaos can be directly observed by the bifurcation diagram, and then chaotic system can be constructed. Large quantity, arbitrary periods, simple production, and good quality are the requests for new chaotic sequences in the research of chaos spreading sequence communication, and constructing equation through parameter searching can realize this target in some extent. In this paper, parameter searching is used to construct a sort of chaotic equations, which is valuable to anti-disturbance in chaos spreading sequence communication and secrecy of communication.