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The matrix representations of aperiodic auto- and cross-correlation functions are useful in revealing new properties of correlation functions. The ??shared autocorrelation function property?? related to nonstandard PSK Golay sequences previously observed through computer search only are shown to propagate to infinite sequence lengths. The additivity property for mod-H codeword sequences and the aperiodic...
Along with the deeply reforming of the power market, the competition among the power plants has become more and more drastic, the core competence will be the source that the power plant obtains sustainable competitive advantage. After comprehensive consideration of four factors including enterprise resource, technological capability, system competence and management capability, this paper combines...
With the construction industry data from 1985 to 2005 in China statistical yearbook, this paper evaluates the contribution of non-state-owned and state-owned economy of the construction industry, respectively. From the comparisons and options of the convergence equations, three main equations are established. From these equations, it is easily found that the state-owned economy is still in the predominate...
Wavelet transform has the good characteristic of spatial and frequency locality, but it isnpsilat suitable for describing the signals, which have high dimensional singularities. Curvelet is one of new multiscale transform theories, which possess directionality and anisotropy, and it breaks some inherent limitations of wavelet in representing directions of edges in image. So when the curvelet transform...
To solve the problem of query-by-example in multimedia audio data, we analyze the characteristics of wavelet multiresolution, wavelet packet transform and it’s best base, and propose a method for searching audio data using wavelet packet best base and wavelet multiresolution pyramidal algorithm. First, we preprocess 100 audio data files by transforming them into best base coefficient and wavelet coefficient...
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