说明：  wavelets are used extensively in signal and image processing,Medicine, Finance, Radar, Sonar, Geology and many other varied fields. They are usually presented in mathematical formulae, but can actually be understood in terms of simple comparisons with your data.
(wavelets are used extensively in signal an d image processing, Medicine, Finance, Radar, Sonar. Geology and many other varied fields. They are u sually presented in mathematical formulas. but can actually be understood in terms of simpl e comparisons with your data.)