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Communications Via Seismic Waves Employing 80-Hz Resonant Seismic Transducers

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2 Author(s)
Ikrath, K. ; U.S. Army Electronics Research and Development Lab., Fort Monmouth, N.J ; Schneider, W.

The design, construction, deployment, and operating characteristics of experimental 80-Hz resonant seismic transmitterand receiver-transducers are discussed. A description is given of seismic-acoustic measurements and experiments involving 80-Hz signal transmissions 1) between surface sites in flat terrains, 2) between surface sites in mountainous terrains, 3) between locations on lake ice, and 4) from a surface site to locations underground inside a deep mine via earth, ice, and water media. Results of these experiments are evaluated with regard to the realization of "hard line" communications capabilities by seismic-acoustic and electrical means.

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Communication Technology, IEEE Transactions on  (Volume:16 ,  Issue: 3 )