MICRO-MOTION TARGET SENSING BY STEPPED-FREQUENCY CONTINUOUS-WAVE RADAR

Mechanical micro-vibration of a target may induce phase modulations on the radar echo, and the vibration can be detected to identify micro-motion target. In this paper, a new method to detect a micro-motion target and obtain its range and micro-motion frequency is proposed in which multiple periods...

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Bibliographic Details
Published in:Journal of electronics (China) 2009-11, Vol.26 (6), p.782-787
Main Authors: Kong, Lingjiang, Zhou, Yongshun, Cui, Guolong, Yang, Jianyu
Format: Article
Language:English
Subjects:
Electrical Engineering
Engineering
动目标指示
振动频率
步进频率
相位调制
运动目标
连续波信号
连续波雷达
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Summary:Mechanical micro-vibration of a target may induce phase modulations on the radar echo, and the vibration can be detected to identify micro-motion target. In this paper, a new method to detect a micro-motion target and obtain its range and micro-motion frequency is proposed in which multiple periods stepped-frequency continuous-wave signal and Moving Target Indication （MTI） filter are adopted. The simulation results illustrate the validity of this method and present the detection of the target range and the vibration frequency. The experiment gives promising results.
ISSN:0217-9822
1993-0615
DOI:10.1007/s11767-009-0055-x