A COMBINED AM - PM DIGITAL COMMUNICATIONS SYSTEM.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1967
- Accession Number
- AD0821830
Entities
People
- Harold R. Keller
Organizations
- Naval Postgraduate School