TRANSMITTER ARRAYS IN ACTIVE SEISMIC SYSTEMS FOR COMMUNICATIONS AND SURVEILLANCE.
ARMY ELECTRONICS COMMAND FORT MONMOUTH N J INST FOR EXPLORATORY RESEARCH
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Experimental and theoretical data are presented on the performance of seismic wave transmitters consisting of arrays of 80-Hz 10-watt-max resonant seismic transducers. The influence of the structural dimensions of seismic media on the transmission of continuous seismic wave CSW signals is analyzed by a comparison of seismic radiation patterns obtained in the field with phase-controlled transducer arrays. Practical applications of phase-controlled seismic transmitter arrays are discussed, and equipments, circuits, and measurement methods are described. Author
- Seismic Detection and Detectors
- Non-Radio Communications