Compressive sampling method based on fractional Gabor transform for LFM echo signals

被引：0
|
作者：
Wang Q. [1 ]
Meng C. [1 ]
Wang C. [1 ]
Zhang R. [1 ]
机构：
[1] Shijiazhuang Campus, Army Engineering University, Shijiazhuang
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2022年 / 44卷 / 04期
关键词：
Compressive sampling; Echo signal; Fractional Gabor transform; Linear frequency modulated (LFM);
D O I：
10.12305/j.issn.1001-506X.2022.04.05
中图分类号：
学科分类号：
摘要：
In order to overcome the poor reconstruction performance of current compressive sampling methods, a novel compressive sampling method based on the fractional Gabor transform is proposed for linear frequency modulated (LFM) echo signals. Firstly, utilizing the difference in time delay of different echoes, the fractional Gabor transform is introduced to achieve the sparse representation for LFM echo signals, and the corresponding completeness condition is analyzed. Then, according to the low-pass filter implementation of fractional Gabor transform, compressive sampling system is designed for LFM echo signals. And the signal reconstruction model is also established. Finally, the effectiveness of the proposed method is verified by simulation and application examples. Experimental results show that compared with the existing compressive sampling methods, the proposed method has lower reconstruction error and better reconstruction performance. © 2022, Editorial Office of Systems Engineering and Electronics. All right reserved.
引用
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页码：1103 / 1112
页数：9
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