Yanxing Song

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—In this paper, we extend the OGY chaos-control method to be one based on the invariant manifold theory and the sliding mode control concept. This extended-control method not only can deal with higher order chaotic systems in the same spirit of the OGY method, but also can remove the reliance of the control on eigenvalues and eigenvectors of the system(More)
—In view of characteristics of digital image,such as bulk data capacity,high redundancy and poor security, a new image encryption algorithm was put forward by combining chaotic maps with wavelet transform. Mallat algorithm in wavelet transform firstly was used to decompose the original image, leaving only the low-frequency information, and then oversampled(More)
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