Estimation of source location for a borehole radar with a circular array by the MUSIC algorithm

Satoshi Ebihara, Motoyuki Sato, Hiroaki Niitsuma

Research output: Contribution to journalArticle

Abstract

A borehole radar is one form of ground penetrating radar which can be used in deep boreholes. We have been developing a directional borehole radar system with a conformal array antenna on a conducting cylinder. In this paper, we propose a 2-D MUSIC algorithm for the circular array of a directional borehole radar, which can be used to estimate the 2-D source location in a plane containing the array. A decorrelation technique is employed and we derive an algorithm which can determine the locations of two coherent sources. Experimental results obtained with the borehole radar show that this algorithm can accurately estimate parameters with a circular array having a radius of 0.03 m, which is much less than the signal wavelength of 0.8 m.

Original languageEnglish
Pages (from-to)69-77
Number of pages9
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume80
Issue number6
DOIs
Publication statusPublished - 1997 Jun

Keywords

  • 2-D MUSIC algorithm
  • Borehole radar
  • Circular array
  • Decorrelation
  • Superresolution

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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