P3-29 地中埋設物三次元映像化における横方向距離分解能(ポスター発表)

概要

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The lateral resolution of 3-dimensional imaging method for underground buried objects is studied, by computational simulation and experimental measurement. An electromagnetic induction type sound source is employed for radiating powerful impulse elastic wave into the ground. 12 receivers with identical interval are placed symmetrically as a cross array with the center of sound source. The 12 signals reflected from the underground buried object are calculated by the 3-D amplitude correlation synthesis processing method. The comparison imaging results derived from different intervals of receivers and of underground buried objects show that two objects with lateral distance 0.9 m (over λ) buried in depth of 1.5 m (about 2λ) can be imaged separately, with the measuring signals received by receivers array with interval of 40 cm (about Aλ).
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2006-11-15