00420nam a22001457i 4500001001000000005001700010008004100027082002300068100001900091245006400110250001000174260004300184300001700227650003000244SXC02933520260819093841.0260101s2007    ii            000 0 eng d  a621.382 SHA-C4222  aSharma, Sanjay10aCommunication systems: Analog and digital /cSharma, Sanjay  a4 ed.  abS K Kataria & Sons, New Delhi,c2007  ap. ;c22 cm. 0aCommunication Engineering