通信的数学基础 不错的资料
A Mathematical Theoryof Communication
THE recent development of various methods of modulation such as PCM and PPM which exchange
bandwidthforsignal-to-noiseratiohasintensifiedtheinterestinageneraltheoryofcommunication. A
T
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basis forsuch a theoryiscontainedin the importantpapersof Nyquist and Hartley onthis subject. Inthe
presentpaper we will extendthe theoryto includea numberofnewfactors, in particularthe effectofnoise
inthechannel,andthesavingspossibleduetothestatisticalstructureoftheoriginalmessageandduetothe
natureofthefinaldestinationoftheinformation
