The Development and Testing of an Ultraviolet Voice Communication System.
Abstract
Measurements of the atmospheric propagation and scattering of ultraviolet radiation within the solar blind through the lower atmosphere have been made through the summer and fall months of 1978 in rural, industrial and maritime atmospheres. An ultraviolet propagation and scattering model has been improved as the result of these measurements and has been used successfully in an ultraviolet communications model. A research oriented, ultraviolet voice communications system has been designed and fabricated using the best available components. The communications system has been field tested and found to perform quite well with a maximum line of sight range of 4.7 km and maximum nonline of sight range of 1.6 km when the ozone level is moderately high. Several advances have been made in component design including triggering circuitry for the high repetition rate flashlamps, voice modulation electronics, pulse amplitude discriminator design, and the collimation of transmitted radiation. Investigations of multi-channel concepts and safety have also been completed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1979
- Accession Number
- ADA080319
Entities
People
- Joseph M. Schlupf
- Michael E. Neer