Title :
Locating soil anomalies using the impedance variation of a horizontal dipole over ground
Author :
Donohoe, J. Patrick ; Fairley, Josh R. ; Lynch, Larry N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Mississippi State Univ., Starkville, MS, USA
Abstract :
A simple horizontal dipole over ground can be used as a near-field probe for buried object detection if changes in the dipole impedance produced by the presence of the buried object can be correlated to the characteristics of the object. In this paper, the wideband variation in the input impedance of a horizontal dipole over ground caused by the presence of a nearby underground anomaly (tunnel) is investigated via finite difference time-domain (FDTD) simulation. The correlation of the periodic variation in the dipole impedance difference to the location of the tunnel is demonstrated.
Keywords :
buried object detection; finite difference time-domain analysis; FDTD simulation; buried object detection; finite difference time-domain simulation; horizontal dipole; impedance variation; input impedance; near-field probe; soil anomalies location; underground anomaly; wideband variation; Buried object detection; Dipole antennas; Finite difference methods; Frequency; Impedance; Object detection; Probes; Resonance; Soil; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5172384
