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A new encryption scheme for digital images based on compound Chaos algorithm is presented in this paper. The compound Chaos algorithm combines the Lorenz Chaotic system and Logistics map to generate the pseudo-random sequences. Then the pseudo-random sequences are used to produce the permutation matrix to encrypt the digital image. Matlab is used for simulation testing of the image encryption. Algorithm...
A new adaptive infinite impulse response (IIR) filter structure is proposed based on the input balanced realization. It is generated by the four-multiplier lattice structure. Consequently the controllability Grammian matrix becomes an identity matrix and the algorithm inherently guarantees that the adaptive filter will always remain stable. The simulation result shows that this new adaptive IIR filter...
It is difficult to establish a precise mathematical model in extended Kalman filter (EKF) data fusion algorithm for GPS/DR integrated vehicle navigation system, a novel data fusion algorithm is put forward, which based on wavelet packet analysis. Firstly, the algorithm chooses best wavelet packet group for GPS, odometer and gyroscope signals with least cost principle, and does dynamic pre-filtering...
The discovery of association rules in data mining is an important issue, the core of which is the frequent pattern mining, Apriori algorithm is classical for the association rule mining, but it should repeatedly scan the database and can produce plenty of candidates. By examples, it is proved that Boolean matrix association rules algorithm can improve the algorithmic efficiency by reducing the times...
Joint diagonalization is an important family of methods for ICA (independent component analysis) and BSS (blind source separation). In this paper, we present a new approach to joint diagonalization of a set of 2x2 real symmetric matrices with a general (not necessarily orthogonal) matrix. It is a non-iterative algorithm in which the joint diagonalization problem can be solved by a special eigenvector...
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