Feasibility study of non-invasive telemetry techniques for use with submarine telephone cables
Citable URI
https://hdl.handle.net/1912/1205DOI
10.1575/1912/1205Abstract
The feasibility of using inductive coupling with existing submarine telephone cables for telemetry of data from ocean sensors was
investigated. The submarine telephone cable was simulated with a computer model and the model results were tested experimentally by
deploying 600 meters of coax cable in Woods Hole Harbor. In parallel a
study of the optimum access methods and modulation and techniques
was performed.
Results of the feasibility study showed that a non-invasive
technique for inductive coupling is not feasible for use with existing SF
and SD coaxial cable designs. Signals induced in both conductors by a
toroid encircling the cable remain identical as they propagate along the
cable as a result of mutual inductance. Thus, no signals are apparent at
the repeaters. Optimal use of cable bandwidth combines time division
multiple access with trellis-coded QAM modulation.
Suggested Citation
Brown, N. L., Frye, D. E., & Proakis, J. (1993). Feasibility study of non-invasive telemetry techniques for use with submarine telephone cables. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/1205Related items
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