Uneven surface clutter mitigation for holographic subsurface radar

被引：0
作者：
Chen C. [1 ]
Liu T. [1 ]
Cao L. [1 ]
He Z. [1 ]
Huang C. [1 ]
Su Y. [1 ]
机构：
[1] College of Electronic Science and Technology, National University of Defense Technology, Changsha
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2022年 / 44卷 / 09期
关键词：
clutter mitigation; double-frequency cancellation; holographic subsurface radar; non-destrictive detection; uneven surface;
D O I：
10.12305/j.issn.1001-506X.2022.09.10
中图分类号：
学科分类号：
摘要：
For the problem of uneven surface clutter when using holographic subsurface radar for nondestructive detection, a double-frequency cancellation based method is proposed to mitigate the uneven surface clutter. This method first obtains the low-frequency and high-frequency radar signals under setting conditions. Then, the corresponding signal model is constructed. By analysing the characteristics of target signals and non-flat surface signals in radar echoes of different frequencies, the parameters in the model are estimated by combining the theoretical derivation and fitting an approximation of the surface echoes. Finally, the estimated surface echo is cancelled with the original low-frequency echo to mitigate the uneven surface clutter. The effectiveness of the proposed method is verified by simulation and real experiments. © 2022 Chinese Institute of Electronics. All rights reserved.
引用
收藏
页码：2776 / 2782
页数：6
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