00978    a2200217   4500003000500000005001700005020001800022040000900040082001200049100001800061245006000079250001100139260003500150300001000185505037300195538003200568650002600600942001200626999001900638952010300657Nust20170207153600.0  a9788131725436  cNust  a621.382  aW.Couch, Leon  aDigital and analog communication systemscLeon W.Couch,  a7th ed  aPearson EducationbIndiac2009  a749 p  aIntroduction (Page-29) Signal and Spectra (Page-60) Baseband Pulse and Digital Signals (Page-150)Banpass Signaling Principles and Circuits (Page-250) AM, FM , and Digital Modulation Systems (Page-320) Random Processes and Spectral Analysis (Page-409) Performance of Communication Systems Corrupted by Noise (Page-482) Wire and Wireless Communication Systems (Page-555)  aAlmirah No.39and Shelf No.4  aCommunication Systems  2ddccBK  c189286d189286  00102ddc40708NFICaMCSbMCSd2016-12-12l0o621.382  COUpMCS35035r2016-12-08w2016-12-12yBK