Improved HHT and its application in narrowband radar imaging for precession cone-shaped targets

被引：0

作者：

Shen Zhao ^{[1
,2
]}

Jie Niu ^{[3
]}

Xiang Li ^{[3
]}

Chunjie Qiao ^{[1
]}

机构：

[1] College of Mechatronics and Automation, National University of Defense Technology

[2] Department of Missile Engineering, Ordnance Engineering College

[3] College of Electronic Science and Engineering, National University of Defense Technology

来源：

Journal of Systems Engineering and Electronics | 2014年 / 25卷 / 06期

关键词：

improved Hilbert-Huang transform(HHT); instanta-neous frequency; narrowband radar imaging; precession cone-shaped targets;

D O I：

暂无

中图分类号：

TN957.52 [数据、图像处理及录取];

学科分类号：

080904 ; 0810 ; 081001 ; 081002 ; 081105 ; 0825 ;

摘要：

Imaging the spatial precession cone-shaped targets with narrowband radar is a new technical approach in mid-course recognition problem. However, most existing time-frequency methods still have some inevitable deficiencies for extracting microDoppler information in practical applications, which leads to blurring of the image. A new narrowband radar imaging algorithm for the precession cone-shaped targets is proposed. The instantaneous frequency of each scattering point is gained by using the improved Hilbert-Huang transform, then the positions of scattering points in the parameter domain are reconstructed. Numerical simulation and experiment results confirm the effectiveness and high precision of the proposed algorithm.

引用

页码：977 / 986

页数：10