Terrestrial Propagation Characteristics in Modern Systems of Communications, Surveillance, Guidance and Control, Proceedings of the Electromagnetic Wave Propagation Panel Specialists' Meeting Held in Ottawa (Canada) on 20-24 October 1986
Abstract
This Symposium had the objectives of presentation, discussion and publication of new research results in surface propagation characteristics for modern systems applications in relevant frequency ranges (radio to optical frequencies). System examples are tactical communications, target acquisition, terrain-following instrumentation, etc. Modern system development requires serious attention to the operational environment and variations it experiences due to natural and artificial influences. Applications based on propagation in the vicinity of the earth surface predominantly depend on characteristics of the near-ground propagation medium as well as on its lower boundary, the ground- surface, or on the terrestrial propagation characteristics. Research work carried out during the last few decades has resulted in data banks and other information on average behaviour of parameters concerned, such as ground profiles, vegetation and electrical characteristics. An efficient operation of modern systems of communication, surveillance, guidance and control requires more and more details of ground data and, particularly, of their deviation from average values on account of anthropogeneous effects in addition to seasonal and diurnal variations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1987
- Accession Number
- ADA194686
Entities
Organizations
- AGARD