CODEM I Data Transmission System. Volume I. Theory.
Abstract
CODEM I is a data terminal set which offers the capability of obtaining extremely reliable (error rates below 0.00001) digital data transmission over an HF radio channel at a data rate equal to or greater than previous systems. The basic concept of the CODEM is the integration of error correcting coding and the modem design in such a manner that channel measurement information can be used to enhance the data reliability. CODEM I is capable of operation at 4800 bps using two independent sidebands and 2400 bps in either a dual frequency diversity mode or within a single voice bandwidth channel. In Volume 1 the CODEM concept is explained, theoretical results are obtained, and some computer and field results are presented. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1972
- Accession Number
- AD0776987
Entities
People
- A. M. Joffe
- D. Chase
- J. S. Zaborowski Jr
- R. C. Harper
- R. W. Spencer