Accession Number : AD0821830

Title :   A COMBINED AM - PM DIGITAL COMMUNICATIONS SYSTEM.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Keller, Harold R.

Report Date : JUN 1967

Pagination or Media Count : 72

Abstract : 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)

Descriptors :   (*PULSE COMMUNICATIONS, PHASE MODULATION), AMPLITUDE MODULATION, DEMODULATORS, NOISE(RADIO), THESES, RADIO TRANSMISSION, ERRORS.

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE