Circuits, Communications and Systems, Pacific-Asia Conference on (2009)
May 16, 2009 to May 17, 2009
Because of the better temporal and frequency properties, the wavelet linear approximation can approximate smooth signals very efficiently with the constant size filter. However, standard wavelet linear approximation techniques cannot achieve similar results for signal which are not smooth. Based on the adaptive lifting scheme with perfect reconstruction presented by G. Piella and the author’s previous research, this paper proposed the improved double adaptive wavelet transform which can achieve the better linear approximation for the piecewise continuous signals.
lifting scheme; adaptive wavelet transform; piecewise continuous signals
S. Lina, Z. Hongli, G. Guangchun and Z. Shengying, "Based on Lifting Scheme Improve Double Adaptive Wavelet Transforms," 2009 Pacific-Asia Conference on Circuits, Communications and Systems (PACCS 2009)(PACCS), Chengdu, 2009, pp. 698-701.