Analysis of micro-Doppler signatures
نویسندگان
چکیده
منابع مشابه
Classification of personnel targets by acoustic micro-Doppler signatures
Classification of targets using their micro-Doppler signatures has attracted a growing interest in recent years. In addition to their main bulk translation, targets may exhibit additional motions, such as vibrations and rotations, which generate Doppler modulations in the echo that contain unique target features and thus can be used to perform target recognition. Although target classification ...
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Mechanical vibrations or rotations (micro-motion dynamics) of structures on a target may introduce frequency modulation on the radar return from the target’s body. The modulation due to this vibration or rotation is referred to as the micro-Doppler (m-D) phenomenon. In this report, the m-D effect is introduced and the mathematics of micro-Doppler signatures, induced by simple sinusoidal vibrati...
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The spectrotemporal representation of an ultrasonar wave reflected by an object contains frequency shifts corresponding to the velocity of the object’s moving parts, also known as the micro-Doppler signature. The present study describes how the micro-Doppler signature of human subjects, collected in two experiments, can be used to categorize the action performed by the subject. The proposed met...
متن کاملAnalysis of micro-Doppler signatures - Radar, Sonar and Navigation, IEE Proceedings -
Mechanical vibration or rotation of a target or structures on the target may induce additional frequency modulations on the returned radar signal which generate sidebands about the target’s Doppler frequency, called the micro-Doppler effect. Micro-Doppler signatures enable some properties of the target to be determined. In the paper, the micro-Doppler effect in radar is introduced and the mathe...
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Micro-Doppler signatures from four CAD aircraft engine models and one experimental engine model are analyzed using joint time-frequency analysis (JTFA). The signatures are obtained from shooting and bouncing rays (SBR) simulation for the CAD models and from measurement for the experimental model. The JTFA results give additional useful physical feature information regarding the respective engin...
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ژورنال
عنوان ژورنال: IEE Proceedings - Radar, Sonar and Navigation
سال: 2003
ISSN: 1350-2395
DOI: 10.1049/ip-rsn:20030743