REFERENCES
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- L Deryck, Natural propagation of electromagnetic waves in tunnels, IEEE Trans, vol VT-27, pp 145–50, Aug 1978.
- S F Mahmoud, Characteristics of electromagnetic guided waves for communication in coal mine tunnels, IEEE Trans, vol Com-22, pp 1547–54, Oct 1974.
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- A E Goddard, Radio propagation measurements in coal mines at UHF & VHF, in Proc. Through the Earth Electromagnetics Workshop, pp 54–61 (Colorado School of Mines, Golden Co. Aug. 15–17, 1973).
- P Delogne & R Riegeois, Radio transmission systems, paper read at the International Electrical & Electronics Conf. & exposition Sept. 29-Oct. 1, 1975, Toronto, Canada.
- D J R Martin, A general study of the leaky feeder principle, The Radio and Electronic Engineer, vol 45, pp 205–214, May 1975.
- R A Isberg et al, Passive reflectors as a means for extending UHF signals down intersecting cross-cuts in mines or large corridors, 28th Vehicular Technology Conference-Denver, Colorado, March 22–24, 1978, pp 267.
- P Delogne, Radio goes underground, IEEE spectrum, pp 26–29, Jul 1980.
- D J R Martin & A Ariadne, Radio propagation highway for mines, reprinted from National Telecom Conf No 30, Dec 1980.
- Shefali Mehta & P K Rangole, Techno-economic analysis of possible alternatives of Daisy chain system for communication in underground mines, Internal Report, CEERI, Mar 1983.
- ibid—Techno-economic appreciation of feasible leaky feeder system for 180 m underground mine tunnel of KCP—Internal Report CEERI, Dec 1983.
- D Harryan, Experience with integrated, computer controlled communications & monitoring system at the Robena mine—The Third WVU Conf. in Coal Mine Electrotechnology, Aug 1976.
- Bexon & D Pargeter, Practical aspects of computers in mine monitoring and control systems—ibid.
- B A Chetty, Telemetry in mining industry, JIETE, vol 29, pp 389–391, Aug 1983 (Special Issue on Telemetry).