Application of music algorithm for imaging point reflectors near transmitting and receiving array

Takashi Miwa; Ikuo Arai

doi:10.1117/12.462235

12 April 2002 Application of music algorithm for imaging point reflectors near transmitting and receiving array

Takashi Miwa, Ikuo Arai

Proceedings Volume 4758, Ninth International Conference on Ground Penetrating Radar; (2002) https://doi.org/10.1117/12.462235
Event: Ninth International Conference on Ground Penetrating Radar (GPR2002), 2002, Santa Barbara, CA, United States

Abstract

Subsurface imaging techniques have been discussed with MUSIC algorithm to locate point reflectors. Generally, a radar signal received by a spatial array must be decorrelate as pre-processing for the MUSIC algorithm. Since most of decorrelation techniques are based on a plane wave incidence model, it is difficult to apply the decorrelation technique for the radar targets around the near field of the array. In this report, we introduce a new decorrelation technique with transmitting and receiving array for targets near the array and apply the MUSIC algorithm for estimation of the 2D position of the point targets in crosshole tomographic measurement. Simulation results show that this method has much higher resolution and accuracy than the conventional diffraction stack method. Moreover, we discuss the relationship between the S/N ratio and the geometrical separation.

Citation Download Citation

Takashi Miwa and Ikuo Arai "Application of music algorithm for imaging point reflectors near transmitting and receiving array", Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); https://doi.org/10.1117/12.462235

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