“…Data handling technologies based on the digital computers are of main importance to realize more efficient networking and computing. Discrete wavelet transform (DWT) may be promised to become a deterministic methodology handling the digital signals and images, e.g., compressing data quantity, extracting their characteristics, etc (e.g., Matsuyama, 1999). Moreover, their applications to electromagnetic field calculation, solving forward and inverse problems, have been investigated and spurred to faster calculation algorithm (Beylkin et al, 1991, Doi et al, 1996.…”