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Human target indication and detection are widely used in military and civil applications. For stationary human targets behind an obstacle, the micro-motion caused by vital sign results in a fairly low signal-to-clutter-and-noise (SCNR). This study presents an iterative singular vector decomposition (ISVD) based micro-motion indication method for detecting human targets with through-the-wall radar...
Stationary human micro-motion trajectory in slow time range domain provides more original motion information, including periodical respiration and heart beating, as well as random body movement and sudden body shaking, whose range often outstrips the periodical movement. Phase contour, amplitude contour and peak locus are all the represent of stationary human micro-motion trajectory. Due to the phase...
In this paper, a micro-motion target detection approach behind an obstacle is presented using a stepped-frequency through-the-wall radar. First, the micro-motion target model is established, and the human movement includes periodical respiration and heart beating, as well as random body movement and sudden body shaking, which is close to the realistic human movement. Then the procedure of micro-motion...
Vital signs such as respiration and heart beating introduce micro-motions for stationary human targets. In this paper, an isophase based human life signal extraction approach is presented to detect human target inside buildings using a stepped-frequency through-the-wall radar. Firstly, the stationary human micro-motion model is established and the effect brought by the wall is analysed. Then the isophase...
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