00421nam a22001217a 4500020002100000082001900021100001500040245004300055260004100098300003400139500002000173650010600193  a8174090665 (pbk)  a621.3822bSAR   aSarkar, N.  aElements of digital signal processing   aNew Delhi bKhanna Publishers c2003  axiv, 775 p.b: ill.c; 21 cm.  aIncludes index.  aSignal processing vDigital techniques vDigital signals vDiscrete transform vAnalog signalsvFEAS