UHF COMMUNICATION TERMINAL TECHNIQUES.
Abstract
A UHF Manpack Satellite Ground Terminal appears to be feasible. A partial study showed that the primary limitations would probably be in a primary power source that would operate over wide temperature extremes, and in the design of lightweight high gain antenna. A study of modulation techniques showed series degradation of FSK and DPSK error rates when diffuse and/or specular ground reflections are present especially when residual Doppler was also present. In categorizing multiple access techniques, the three basic techniques identified are frequency, time and code division. From these a total of twenty-six basic and Hybrid multiple access techniques are derived. Some performance analysis of orthogonal nd non-orthogonal multiple access techniques have been obtained. Typical power budgets are shown for SHF and UHF Satellite Communication Links. An energy search technique for Satellite Acquisition is analyzed. A general treatment of coding techniques is included. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1967
- Accession Number
- AD0816157
Entities
People
- F. Less
- J. Wittman
- W. Burdine
Organizations
- Sylvania Electric Products