Title :
Continuous wavelet transforms
Author :
Yunhui, Shi ; Qiuqi, Ruan
Author_Institution :
Coll. of Comput. Sci., Beijing Univ. of Technol., China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
In this paper, we propose a new type of continuous wavelet transform. However we discretize the variables of integral a and b, any numerical integral has a high resolution and a does not appear in the denominator of the integrand. Furthermore, we give two discretization methods of the new wavelet transform. For the one-dimensional situation, we give quadrature formula of the discretized inverse wavelet transform. For the multidimensional situation, we develop the commonly wavelet network based on the discretized inverse wavelet transform of the new wavelet transform. Finally, the numerical examples show that the continuous wavelet transform constructed in this paper has higher computing accuracy compared with the classical continuous wavelet transform.
Keywords :
Fourier transforms; multidimensional signal processing; signal resolution; wavelet transforms; Fourier transform; continuous wavelet transform; discretization method; inverse wavelet transform; neural network; signal resolution; Continuous wavelet transforms; Discrete wavelet transforms; Educational institutions; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1452618