W-Band MIMO FMCW Radar System With Simultaneous Transmission of Orthogonal Waveforms for High-Resolution Imaging

被引：47
作者：
Jeon, Se-Yeon [1 ]
Ka, Min-Ho [1 ]
Shin, Seungha [2 ]
Kim, Munsung [2 ]
Kim, Seok [1 ]
Kim, Sumin [1 ]
Kim, Jeongbae [1 ]
Dewantari, Aulia [1 ]
Kim, Jaeheung [1 ]
Chung, Hansup [1 ]
机构：
[1] Yonsei Univ, Sch Integrated Technol, Yonsei Inst Convergence Technol, Seoul 21983, South Korea
[2] U Tel Co Ltd, Res & Dev Ctr, Gunpo 15880, South Korea
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2018年 / 66卷 / 11期
关键词：
Frequency-modulated continuous wave (FMCW); multi-input multi-output (MIMO); multichannel; orthogonal waveform; radar; synthetic aperture radar (SAR); transceiver; W-band; SYNTHETIC-APERTURE RADAR; SAR;
D O I：
10.1109/TMTT.2018.2867003
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：
This paper presents a multi-input multi-output (MIMO) radar with simultaneously transmitted orthogonal waveforms. The radar operates in W-band, 93.5-94.5 GHz, with frequency-modulated continuous wave (FMCW) signals. The radar is designed to be capable of simultaneous transmission rather than switching transmit channels. A suitable orthogonal waveform transmission method for the FMCW radar is selected and reflected in the transceiver design. The radar consists of a transceiver, antennas, and a signal processor. The design and specifications of each module are described in detail. The transceiver consists of two transmitting channels and two receiving channels. The transmitter is designed to have high transmit power aiming at the detection and imaging of objects with small radar cross section, up to 100-150-m range. A compact horn antenna and two-channel analog-to-digital converter with a high sampling rate are designed and fabricated. The performance of each module is measured and evaluated. The performance of the radar is tested through experiments. The MIMO capability of the radar was verified through the acquisition of the range profiles with respect to four distinct signal paths by distinguishing the simultaneously transmitted orthogonal signals. The experimental results verified that the specification of the radar system is feasible for high-resolution imaging applications.
引用
收藏
页码：5051 / 5064
页数：14
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