Microwave Detection of Lost Wells and Unknown Water-Filled Voids in Coal Mines

摘要

Work on contract H0272007 is summarized for the period of January 1979 through March 1984. The development of improved antennas useable with both a pulse system or an FM-CW system is described. The development of a field prototype pulse sampling system is described. Initial theoretical work on the problem of dielectric loading of antennas as well as a study of potential system range is included.