Multiple chaotic attractor time-sharing switching method and device for communication encryption
A chaotic attractor and chaotic technology, which is applied in secure communication devices, digital transmission systems, electrical components, etc., can solve problems such as the inability to realize fast time-sharing switching of chaotic system attractors.
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[0053] like Figure 1-15 As shown, this embodiment provides the implementation process of time-sharing switching of multiple chaotic attractors used for communication encryption to obtain chaotic signals as follows:
[0054] 1. Chaotic mathematical model and discretization
[0055] In order to construct the chaotic system with FPGA, the continuous differential equations of the chaotic system are transformed into discrete differential equations by fast digital difference algorithm. Using the fast Euler algorithm, the continuous chaotic equation is discretized with the discretization formula (1), and the differential equations are transformed into difference equations:
[0056] dx dt = x ( n + 1 ) - x ( n ) ...
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