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Open AccessArticle

Detection and Localization for Multiple Stationary Human Targets Based on Cross-Correlation of Dual-Station SFCW Radars

1
College of Information and Technology, Chengdu University of Technology, Chengdu 610059, China
2
College of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(12), 1428; https://doi.org/10.3390/rs11121428
Received: 11 May 2019 / Revised: 9 June 2019 / Accepted: 13 June 2019 / Published: 15 June 2019
(This article belongs to the Special Issue Radar Remote Sensing on Life Activities)
This paper demonstrates the feasibility of detection and localization of multiple stationary human targets based on cross-correlation of the dual-station stepped-frequency continuous-wave (SFCW) radars. Firstly, a cross-correlation operation is performed on the preprocessed pulse signals of two SFCW radars at different locations to obtain the correlation coefficient matrix. Then, the constant false alarm rate (CFAR) detection is applied to extract the ranges between each target and the two radars, respectively, from the correlation matrix. Finally, the locations of human targets is calculated with the triangulation localization algorithm. This cross-correlation operation mainly brings about two advantages. On the one hand, the cross-correlation explores the correlation feature of target respiratory signals, which can effectively detect all targets with different signal intensities, avoiding the missed detection of weak targets. On the other hand, the pairing of two ranges between each target and two radars is implemented simultaneously with the cross-correlation. Experimental results verify the effectiveness of this algorithm. View Full-Text
Keywords: SFCW radar; human-target detection and localization; multiple targets; cross-correlation SFCW radar; human-target detection and localization; multiple targets; cross-correlation
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MDPI and ACS Style

Jia, Y.; Guo, Y.; Yan, C.; Sheng, H.; Cui, G.; Zhong, X. Detection and Localization for Multiple Stationary Human Targets Based on Cross-Correlation of Dual-Station SFCW Radars. Remote Sens. 2019, 11, 1428. https://doi.org/10.3390/rs11121428

AMA Style

Jia Y, Guo Y, Yan C, Sheng H, Cui G, Zhong X. Detection and Localization for Multiple Stationary Human Targets Based on Cross-Correlation of Dual-Station SFCW Radars. Remote Sensing. 2019; 11(12):1428. https://doi.org/10.3390/rs11121428

Chicago/Turabian Style

Jia, Yong; Guo, Yong; Yan, Chao; Sheng, Haoxuan; Cui, Guolong; Zhong, Xiaoling. 2019. "Detection and Localization for Multiple Stationary Human Targets Based on Cross-Correlation of Dual-Station SFCW Radars" Remote Sens. 11, no. 12: 1428. https://doi.org/10.3390/rs11121428

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