探地雷達(dá)近場(chǎng)三維距離偏移成像算法
Ground Penetrating Radar Near Field 3-D Range Migration Imaging Technique
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摘要: 在距離偏移算法基礎(chǔ)上提出了近場(chǎng)條件下的探地雷達(dá)三維成像方法,同時(shí)對(duì)后向投影鐘法進(jìn)行了討論。理論分析表明:近場(chǎng)三維距離偏移算法與后向投影算法相比,能在較大程度上減少運(yùn)算量。利用試驗(yàn)數(shù)據(jù)對(duì)兩種算法分別做了成像研究,驗(yàn)證了近場(chǎng)三維距離偏移箅法的正確性及其實(shí)時(shí)處理能力。
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關(guān)鍵詞:
- 探地雷達(dá); 距離偏移算法; 三維成像
Abstract: Based on range migration imaging technique, this paper investigates ground penetrating radar three dimension imaging algorithm under near field condition, discusses the back propagation algorithm at the same time. Theoretical analysis shows that near field 3-D range migration imaging technique can reduce computational complexity in much degree by contrast with back propagation algorithm. Finally, through processing the experimental data, 3-D images of underground objects are obtained. The results validate the correctness of the near field 3-D range migration imaging algorithm and its capability at the aspect of real time processing. -
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