A COMBINED AM - PM DIGITAL COMMUNICATIONS SYSTEM

The hypothesis that Shannon's full-channel information capacity can be approached only in a communications system employing both amplitude and phase modulation (AM and PM) is the basis for this thesis. Phase modulation is discussed, PM and AM systems are defined and AM and PM are combined into...

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Bibliographische Detailangaben
1. Verfasser:	Keller, Harold R
Format:	Report
Sprache:	eng
Schlagworte:	AMPLITUDE MODULATION DEMODULATORS DIGITAL COMMUNICATION SYSTEMS ERRORS NOISE(RADIO) Non-radio Communications PHASE MODULATION PULSE COMMUNICATIONS RADIO TRANSMISSION RANDOM NOISE THESES
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Beschreibung
Zusammenfassung:	The hypothesis that Shannon's full-channel information capacity can be approached only in a communications system employing both amplitude and phase modulation (AM and PM) is the basis for this thesis. Phase modulation is discussed, PM and AM systems are defined and AM and PM are combined into a single system. Error probability formulas are derived and applied to the system in the presence of carrier fading and Gaussian noise. Cyclic codes are introduced and discussed in detail. A cyclic code is selected for the system described above and its implementation and effect on the error rate of the system are described. (Author)