基于雙曲線特征的淺地層探地雷達(dá)雜波抑制與合成孔徑成像研究
Research on Clutter Reduction and Synthetic Aperture Imaging of Shallow Subsurface Ground Penetrating Radar Based on Hyperbolic Feature
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摘要: 本文根據(jù)淺地層探地雷達(dá)圖像的特點(diǎn)，提出了一種基于圖像處理技術(shù)的雜波抑制方法。并在此基礎(chǔ)上，進(jìn)而提出了一種實(shí)現(xiàn)探地雷達(dá)合成孔徑成像的快速方法。通過對(duì)實(shí)測(cè)數(shù)據(jù)進(jìn)行處理，結(jié)果表明，所提雜波抑制方法取得了很好的效果，且通用性強(qiáng)；所提的快速合成孔徑成像方法與普通合成孔徑成像方法相比，所得圖像的分辨力相當(dāng)，且所提方法減少了雜波成分的影響，使處理速度得到了極大的提高，成像的效果更好。
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關(guān)鍵詞:
- 探地雷達(dá);雜波抑制; 合成孔徑成像; 圖像處理
Abstract: This paper proposed a new clutter reduction method based on characteristic of Ground Penetrating Radar(GPR) image in detecting shallow subsurface objects. Moreover, a method to realize fast synthetic aperture imaging based on the proposed clutter reduction method is proposed. The results of processing measurement data show the proposed clutter reduction method is very effective and universally valid; The resolving power of image gained by the proposed fast synthetic aperture imaging method corresponds with that general synthetic aperture imaging method, thanks to the proposed method can eliminate the influence of clutter, so the processing speed is improve greatly comparing with general synthetic aperture imaging method, the effect of image gained by the proposed method better than general synthetic aperture imaging method. -
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