Wideband RF Self-Interference Cancellation for FMCW Phased-Array Radar

被引：3

作者：

Shi, Chengzhe ^{[1
]}

Pan, Wensheng ^{[1
]}

Xia, Xiangjie ^{[1
]}

Hu, Nanzhou ^{[1
]}

Song, Changqing ^{[1
]}

Shao, Shihai ^{[1
]}

Zheng, Jiudong ^{[2
]}

Wu, Hongchao ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Peoples R China

[2] China Elect Technol Grp Corp, Res Inst 14, Nanjing 210039, Peoples R China

来源：

IEEE ACCESS | 2020年 / 8卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Radio frequency; Wideband; Radar; Silicon carbide; Time-frequency analysis; Frequency modulation; Interference cancellation; Frequency-modulated continuous wave; linear frequency modulated; phased array; self-interference cancellation; wideband; CIRCUIT;

D O I：

10.1109/ACCESS.2020.3044959

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this article, a segmented self-interference cancellation (SSIC) method is proposed for frequency-modulated continuous-wave phased-array radar for canceling wideband multipath self-interference (SI) signals. A radio frequency canceller based on the SSIC method that uses the time-frequency segmentation equivalence of the linear frequency-modulated (LFM) signal is designed that can convert wideband SI cancellation (SIC) into several narrowband SICs. Numerical and simulation results show that the proposed method can achieve better cancellation performance with lower hardware complexity than the conventional multi-tap SI cancellation (MTSIC) method. Furthermore, the superior performance of the SSIC method is verified by experiments with a 250 MHz LFM signal.

引用

页码：225284 / 225293

页数：10

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