The Design of 1-D Analog Wavelet Chip
Jiao Huang · Journal of Hunan University · 2002
This paper describes the theory and implementation in CMOS technology of a circuit which performs analog wavelet decompositions of a one_dimensional input. The ananlog wavelet outputs are the output of a logarithmically scaled set of bandpass filters;each band is to be sampled at a rate propotional to the Nyquist rate of the highest frequency content of that band.The filter function of each band is gaussian shaped in order to best resolve the uncertainty relation between time and frequency at each sampled point.