ROCK STRATA PROPAGATION STUDIES
Abstract
Seismic wave propagation use in the solid earth for information transfer is considered for military communications requirements. With seismic communi ations systems the entire system may possibly be underground. Hence, they may provide a hard back-up communications link, relatively invulnerable to general nuclear attack and difficult to jam. Texas Instruments performed theoretical studies, engineering analyses, and field experiments to further describe seismic wave propagation along interfaces. It was concluded that: (1) Narrow bandwidth communications to several hundred kilometers can be achieved within the present state-of-the-art. Transmission of a limited number of bits is possible using 10 to 1000-pound explosive charges. Transmission time is controlled by the velocity of the seismic waves (3 to 8 km/sec); (2) Seismic communication over longer ranges may be possible in some areas with more complex receivers and larger explosive charges, and (3) Seismic communications over continental ranges may be marginally feasible with the achievement of probably realizable major improvements. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 20, 1961
- Accession Number
- AD0265315
Entities
Organizations
- Texas Instruments