Time-frequency domain hybrid algorithm for near-field MIMO-SAR imaging

被引：0

作者：

Jing, Wen ^{[1
]}

Liu, Jie ^{[2
]}

Zhao, Yujiao ^{[2
]}

Jiang, Ge ^{[1
]}

Zhang, Jian ^{[1
,2
]}

机构：

[1] China Acad Engn Phys, Inst Elect Engn, Mianyang 621000, Sichuan, Peoples R China

[2] China Acad Engn Phys, Microsyst & Terahertz Res Ctr, Chengdu 610200, Sichuan, Peoples R China

来源：

2018 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY (ICMMT2018) | 2018年

基金：

中国国家自然科学基金;

关键词：

SYSTEM;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A time-frequency hybrid algorithm for three dimensional near field sparse multi-input multi-output (MIMO) synthetic aperture imaging is proposed in this paper. The algorithm transforms the data of synthetic aperture dimension in wavenumber domain by fast Fourier transform, and compensates the spares MIMO modulated phases using two dimensional back-projection in each wavenumber slices. Then three dimensional image is reconstructed by inverse fast Fourier transform. Compared to direct back-projection algorithm, the proposed algorithm reduces calculation expenses significantly while providing a fairly precise focusing ability.

引用

页数：3

共 7 条

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