Analogue Wavelet Transform Based the Solution of the Parabolic Equation
Jean-Bosco Mugiraneza, Amritasu Sinha · International Journal of Information Technology and Computer Science · 2012
In this paper we have proved that the solution of parabolic equation and its Fast Fourier Transform generate continuous wavelet transforms.Indeed, we have solved the parabolic equation using PDETool, exported its solution and coefficients to Matlab workspace.We have then imported the solution fro m workspace to signal processing tool.We have sampled the imported solution with the sampling frequency of 8192Hz and applied the band pass filter with that frequency.The convolution of the sampled PDE solution with the impu lse response of the band pass filter has generated wavelet transform.This algorith m co mputes the wavelet transform either directly of via Faster Fourier Transform.The computation of the FFT of the PDE solution has produced complex wavelet.