00533 a2200145 4500020001500000082001300015100002300028110003500051245005500086250001200141260004700153300003300200500005100233650010300284 a8177582402 a621.3822 aPhillips, Charless aParr, John M., Riskin, Eve A. aSignals, Systems and TransformscPhillips, Charles a3rd ed. aNew Delhi (India)bPearson Educationc2003 axx, 765 p. ;bill. ;c25 cm. aIncludes bibliographical references and index. a1. Signal processing--mathematical models. 2. Transformations (Mathematics). 3. System analysis.