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计算机科学 2000
An Adaptive Chaotic Demodulator Based on Neural Network Strategy
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Abstract:
Chaotic modulation is an important spread spectrum (SS) technique among chaotic communications. Based on the merits of the good adaptability and the good convergence of a radial basis function (RBF) neural network, an adaptive chaotic demodulator is proposed in the light of a suggested adaptive learnng algorithm in this paper. The demodulator makes use of the good approximation capacity to a nonlinear dynamical system by the RBF network. It can reliably recover source information from SS signal received by a receiver with the on-line and adaptive modes. The simulation results by using the logistic chaotic system to modulate the different source signals demonstrate the relevant conclusions.