Research and Development of Lorenz Equation Virtual Chaotic Signal Generator Basing on the Labview

摘要

Chaos is one complex oscillation between periodic oscillation and noise which are generated from the defined system of the realization of nonlinear formula, because chaotic signal is broad-spectrum and hypersensitive in initial value, it attracts wide attention in the fields of the application of secure communication and spread spectrum .Therefore, it is of great importance to investigate and develop new chaotic signal generator to apply the chaotic theory. Based on the results of chaotic theory research, the text introduces the virtual chaotic signal generator based on Lorenz equation through Labview which is developed by NI Company USA. The software calculates the Lorenz equation and generates the chaotic signal and outputs the results by an acquisition card. It reduces the immanent parameter and error generated form the reproduce signal, it has a good real-time property of discrete time chaotic sequence and so on, thus it is much more available in the security of communication system.