an introduction Naidu, Prabhakar S. creator text New Delhi Narosa Publishing 2006 monographic xxii, 480 p. :ill. 24 cm. Index Included. Signal-Processing-Digital techniques Signal analysis Types of signals z-Transform Discrete fourier transform Linear systems convolution Power spectrum analysis FEAS 621.3822 NAI 9788173197246 (pbk) 8173197245