Title :
Application of an optical electric field sensor array for direction of arrival estimation in a borehole
Author :
Ebihara, S. ; Sato, M.
Author_Institution :
Center for Northeast Asian Studies, Tohoku Univ., Miyagi, Japan
Abstract :
Dipole array antennas with optical modulators are applied to directional borehole radar. Experimental results of 2-D source location are shown. In the experiments, two dipole antennas are set in a borehole as receivers, and a transmitter is located 0.9 m apart from the borehole. The 2-D MUSIC algorithm modified for array type radar in a borehole is applied to the measured data to estimate the location. Method of moment was used to model the antenna
Keywords :
dipole antenna arrays; electric field measurement; radar antennas; 2D MUSIC algorithm; 2D source location; array type radar; dipole array antennae; direction of arrival estimation; directional borehole radar; method of moment; optical electric field sensor array; optical modulators; receivers; transmitter; Antenna arrays; Dipole antennas; Laser radar; Optical arrays; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Radar antennas; Sensor arrays;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976901
