Joint Design of Space-Time Transmit and Receive Weights for Colocated MIMO Radar
1
School of Electronic and Information Engineering, Beihang University, Beijing 100083, China
2
Department of Electronic & Electrical Engineering, University of Sheffield, Sheffield S1 4ET, UK
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Sensors 2018, 18(8), 2722; https://doi.org/10.3390/s18082722
Received: 27 June 2018
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Revised: 12 August 2018
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Accepted: 13 August 2018
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Published: 18 August 2018
(This article belongs to the Special Issue Sensor Signal and Information Processing)
Compared with single-input multiple-output (SIMO) radar, colocated multiple-input multiple-output (MIMO) radar can detect moving targets better by adopting waveform diversity. When the colocated MIMO radar transmits a set of orthogonal waveforms, the transmit weights are usually set equal to one, and the receive weights are adaptively adjusted to suppress clutter based on space-time adaptive processing technology. This paper proposes the joint design of space-time transmit and receive weights for colocated MIMO radar. The approach is based on the premise that all possible moving targets are detected by setting a lower threshold. In each direction where there may be moving targets, the space-time transmit and receive weights can be iteratively updated by using the proposed approach to improve the output signal-to-interference-plus-noise ratio (SINR), which is helpful to improve the precision of target detection. Simulation results demonstrate that the proposed method improves the output SINR by greater than 13 dB.
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Keywords:
colocated multiple-input multiple-output (MIMO) radar; space-time weights; closed-loop system
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MDPI and ACS Style
Yu, Z.; Wang, S.; Liu, W.; Li, C. Joint Design of Space-Time Transmit and Receive Weights for Colocated MIMO Radar. Sensors 2018, 18, 2722. https://doi.org/10.3390/s18082722
AMA Style
Yu Z, Wang S, Liu W, Li C. Joint Design of Space-Time Transmit and Receive Weights for Colocated MIMO Radar. Sensors. 2018; 18(8):2722. https://doi.org/10.3390/s18082722
Chicago/Turabian StyleYu, Ze, Shusen Wang, Wei Liu, and Chunsheng Li. 2018. "Joint Design of Space-Time Transmit and Receive Weights for Colocated MIMO Radar" Sensors 18, no. 8: 2722. https://doi.org/10.3390/s18082722
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