Title :
A review of electromagnetic methods used for detection of underground tunnels and cavities
Author_Institution :
Southwest research institute, San Antonio, TX
Keywords :
Earth; Geologic measurements; Geology; Geometry; Geophysical measurements; Inverse problems; Measurement techniques; Subspace constraints; Telegraphy; Telephony;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1983
Conference_Location :
Houston, TX, USA
DOI :
10.1109/APS.1983.1148972
