Begins with a complete explanation of periodic sampling followed by a lucid introduction to Fourier transform and its fast Fourier transform (FFT) implementation. Includes extensive information on both finite impulse response (FIR) and infinite impulse response (IIR) digital filters, as well as coverage of the benefits of signal averaging. In addition, the abstruse topics of the Convolution theorem and complex signals are demystified, and the practical uses of various binary number formats are carefully described and compared. Annotation c. by Book News, Inc., Portland, Or.