1. A method for simulating a mixed-signal system comprising acts of: generating a matrix-based wavelet operator representation of equations characterizing a system, with the matrix-based wavelet operator representation including wavelet connection coefficients; selecting a number of wavelets and a set of wavelet basis functions with which to represent a performance of the system, whereby the wavelet operator, the number of wavelets and the set of wavelet basis functions represent a wavelet model of the system; and iteratively applying the wavelet model over a series of clock cycles to develop a behavioral model of the system.