00431nam a2200157Ia 4500008004100000020001500041082001600056100002500072245003400097250000800131260004500139300002800184500001900212600002700231650001500258240925s9999    xx            000 0 und d  a013020045x  a621.382 PHI  aPhillips ,Charles L. 0aSignals System and Transforms  a2nd  aNew Jersey:bPrintice- Hall Int.c,1999.  axxiv,389p.bNAfPirated  aIncludes Index  aElectronic Engineering  aTechnology