UWB bio-radar-based multiple-human body object estimation method and system

A biological radar and human target technology, applied in radio wave measurement systems, radio wave reflection/re-radiation, measurement devices, etc., to achieve the effect of improving signal-to-noise ratio, improving level and ability, and ensuring penetration ability

Inactive Publication Date: 2014-03-05
FOURTH MILITARY MEDICAL UNIVERSITY
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  • UWB bio-radar-based multiple-human body object estimation method and system
  • UWB bio-radar-based multiple-human body object estimation method and system
  • UWB bio-radar-based multiple-human body object estimation method and system

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[0051] The present invention will be further described in detail below in conjunction with specific drawings and embodiments, which are explanations rather than limitations of the present invention.

[0052] see figure 1 , the multiple human target estimation system based on UWB biological radar of the present invention is mainly composed of three functional modules: antenna array, radar host and computer. The pulse generator in the radar host generates periodic narrow pulse signals, part of which is sent to the transmitter for shaping, and then radiated out through the transmitting antenna; part of which is sent to the delayer to generate a control signal to trigger the receiver to select the echo signal in terms of distance sexual reception. The delayer is designed with digital multi-channel stepping technology, and the highest precision can reach 10ps. The antenna array consists of four units: 1 transmitting antenna and 3 receiving antennas, all of which use butterfly dipol...

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Abstract

The invention discloses a UWB bio-radar-based multiple-human body object estimation method and a UWB Bio-radar-based multiple-human body object estimation system, and belongs to the technical field of bio-radar biological life detection. According to the UWB bio-radar-based multiple-human body object estimation method of the invention, echo data obtained through collection are processed through the following manners that: a breath detection algorithm, an adaptive cancellation method and a target recognition algorithm are adopted to process the echo data in each channel; correlation processing is performed among each channel according to processing results; and finally, threshold values are set such that clutter left in the channels after processing can be removed, and at the same time, target classification and number estimation are realized. With the UWB bio-radar-based multiple-human body object estimation of the invention adopted, a technological base can be provided for further implementation of bio-radar detection and positioning of multiple human body objects, and the improvement of the level and ability of bio-radar technique to obtain information of human bodies can be facilitated.

Description

technical field [0001] The invention belongs to the technical field of biological radar life detection, and in particular relates to a method and system for estimating multiple human targets based on UWB biological radar. Background technique [0002] Bio-radar is a special radar technology for the detection and identification of living objects. This technology mainly uses the human body as the detection target, and uses the electromagnetic wave emitted by the radar as the carrier to obtain the information of the human target. Its biggest advantage is the ability to penetrate obstacles such as walls and ruins, so it has broad application prospects in national security, emergency rescue and other fields. [0003] In practical applications, people first pay attention to whether there is someone, that is, whether there is at least one person. Therefore, the current bio-radar technology is basically based on the detection of a single target. With the realization of this techn...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12G01S13/88
Inventor 吕昊王健琪荆西京李钊于霄焦腾张杨薛慧君
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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