1. A classifier for recognizing features of a target in a received signal, comprising: means for selecting a prototype wavelet corresponding in amplitude and phase per unit of time to a portion of said received signal; means for resolving said received signal onto a basis of wavelet functions in a wavelet domain by calculating inner product transform coefficients between said received signal and each of said wavelet functions, said wavelet functions corresponding to variations in scale and delay for said prototype wavelet, said variations in scale and delay exceeding a frame condition for said prototype wavelet and said basis, said frame condition enabling an inverse wavelet transform of said calculated inner product transform coefficients to converge on said received signal; a regionpass filter for identifying a target region of said basis and for passing said inner product transform coefficients within said target region, said target region including said target features in the received signal; a separability filter coupled to said regionpass filter for passing select inner product transform coefficients in said target region, said select inner product transform coefficients being a scale band within said target region and having a separability between known targets exceeding the separability in other scale bands within said target region, a scale band defined by a set of inner product transform coefficients having a common scale variable; and a comparator coupled to said separability filter for comparing said select inner product transform coefficients to an exemplar, said comparison indicating a recognition of said features of the target.