Title :
A null-field method for estimating underground position
Author :
Davis, C.P. ; Atkins, P.R. ; Tucker, W.W. ; Chew, W.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL
Abstract :
A new algorithm to locate receivers buried in the earth using low-frequency magnetic dipoles is presented. It is found that if the earth is modeled using horizontal layers and the system is noiseless, ground-zero can be located exactly. Resonably accurate depth estimates can also be obtained.
Keywords :
magnetic fields; magnetic moments; object detection; receivers; spatial variables measurement; depth estimates; low-frequency magnetic dipoles; null-field method; receivers; underground position estimation; Antenna measurements; Azimuth; Coils; Earth; Equations; Linear systems; Magnetic field measurement; Magnetic separation; Position measurement; Transmitters;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619253
