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Mining Publication: A Hybrid Approach for Efficient Modeling of Medium-Frequency Propagation in Coal Mines
Keywords: Medium frequency communications systems Modeling
Original creation date: February 2015
Authors: DE Brocker, PE Sieber, JA Waynert, J Li, PL Werner, DH Werner
Peer Reviewed Journal Article - February 2015
Go to Web Page
NIOSHTIC2 Number: 20046071
IEEE Antennas Propag Mag 2015 Feb; 57(1):164-176
An efficient procedure for modeling medium frequency (MF) communications in coal mines is introduced. In particular, a hybrid approach is formulated and demonstrated utilizing ideal transmission line equations to model MF propagation in combination with full-wave sections used for accurate simulation of local antenna-line coupling and other near-field effects. This work confirms that the hybrid method accurately models signal propagation from a source to a load for various system geometries and material compositions, while significantly reducing computation time. With such dramatic improvement to solution times, it becomes feasible to perform large-scale optimizations with the primary motivation of improving communications in coal mines both for daily operations and emergency response. Furthermore, it is demonstrated that the hybrid approach is suitable for modeling and optimizing large communication networks in coal mines that may otherwise be intractable to simulate using traditional full-wave techniques such as moment methods or finite-element analysis.
Cover page for A Hybrid Approach for Efficient Modeling of Medium-Frequency Propagation in Coal MinesPeer Reviewed Journal Article - February 2015
Go to Web Page
NIOSHTIC2 Number: 20046071
IEEE Antennas Propag Mag 2015 Feb; 57(1):164-176
See Also
CFD Modeling of Fire Spread Along Combustibles in a Mine Entry
Develop a Means to Model Network Performance Using Network Simulation Tools
Evaluation of the Relative Importance of Coalbed Reservoir Parameters for Prediction of Methane Inflow Rates During Mining of Longwall Development Entries
Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
Medium-Frequency Propagation in Coal Mines
Modeling and Data Analysis of 50 to 5000 kHz Radio Wave Propagation in Coal Mines
Propagation of EM Signals in Underground Mines
Reservoir Engineering Considerations for Coal Seam Degasification and Methane Control in Underground Mines
Theoretical Noise and Propagation Models for Through-the-earth Communication
Variation of Horizontal Stresses and Strains in Mines in Bedded Deposits in the Eastern and Midwestern United States
Page last reviewed: July 14, 2016
Page last updated: July 14, 2016
Content source: National Institute for Occupational Safety and Health, Mining Program
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