GPR imaging algorithm based on compressive sensing

被引:1
|
作者
Zhou L. [1 ]
Wang H.-J. [1 ]
Su Y. [1 ]
机构
[1] School of Electronic Science and Engineering, National University of Defense Technology
关键词
Back projection algorithm; Compressive sensing; Ground penetrating radar imaging; Nyquist sampling theorem;
D O I
10.3969/j.issn.1001-506X.2011.09.15
中图分类号
学科分类号
摘要
The Nyquist sampling theorem must be satisfied in traditional data acquisition of the ground penetrating radar (GPR), which degrades the imaging efficiency dramatically. However, the theory of compressive sensing (CS) shows that sparse signals can be precisely reconstructed by solving a convex l1 minimization problem at a rate significantly below the Nyquist rate, and it can overcome the shortcomings of traditional data acquisition. The CS theory is applied into the GPR imaging, and the effects on imaging results caused by the dimension of measurement matrix, signal to noise ratio (SNR), incomplete data and compactness of targets are analyzed systematically through the simulated data. Experimental results show that compared with the traditional GPR imaging algorithm, the proposed algorithm has higher precision and fewer false alarms. This algorithm is also robust to noise and incomplete data, and saves the resources of data storage and acquisition.
引用
收藏
页码:1995 / 2001
页数:6
相关论文
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