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Static human target recognizing and positioning method based on UWB (Ultra Wideband) MIMO (Multiple-Input Multiple-Output) bio-radar

A technology of human target and positioning method, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, measuring devices, etc.

Active Publication Date: 2016-10-26
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, MIMO biotechnology mainly uses moving human targets or internal hierarchical structures of buildings as detection objects, and there is no systematic research on static human detection and positioning methods.

Method used

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  • Static human target recognizing and positioning method based on UWB (Ultra Wideband) MIMO (Multiple-Input Multiple-Output) bio-radar
  • Static human target recognizing and positioning method based on UWB (Ultra Wideband) MIMO (Multiple-Input Multiple-Output) bio-radar
  • Static human target recognizing and positioning method based on UWB (Ultra Wideband) MIMO (Multiple-Input Multiple-Output) bio-radar

Examples

Experimental program
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Embodiment

[0142] Using the above processing method, we conducted a large number of detection and recognition experiments on stationary human targets under the condition of passing through a single wall to verify the effectiveness of the method, where the thickness of the brick wall is about 30cm. The detection results distinguish the suspected target into two types: human target and clutter, and when it is determined that there is a human target, the two-dimensional position of the target is given at the same time.

[0143] "Misjudgment" is defined as follows: judging that there is no human target data as having a target; judging that there is target data as having no target, or judging that the position of the human target is significantly different from its actual position. The experimental results are grouped and counted according to the different detection scenarios and target distances. Each group includes two cases of no target and target, and the target is the same normal adult ma...

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Abstract

The invention discloses a static human target recognizing and positioning method based on UWB (Ultra Wideband) MIMO (Multiple-Input Multiple-Output) bio-radar. A distance-slow time-multi-channel three-dimensional data matrix is formed by preprocessing original echo signals of radar, so that the spatial separation degree of physical sign signals and surrounding clutter of human body is effectively improved; and the physical sign signals of the human body are detected and positioned via a physical signal detection and positioning algorithm, so that the human target recognizing and positioning performance of the bio-radar can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of biological radar or radar life detection, and relates to a method for identifying and locating stationary human targets based on UWB MIMO biological radar. Background technique [0002] Bio-radar is a new concept radar for the purpose of detecting living organisms. It integrates radar, biomedical engineering, computer and other technologies, and can penetrate non-metallic media (brick walls, ruins, etc.), long-distance, non-contact detection and Identifying living objects has been widely used in counter-terrorism, emergency rescue, post-disaster search and rescue, etc., and plays an important role in protecting the lives of the people. [0003] The current bio-radar mainly adopts single-channel and multi-channel systems. Single-channel radar mainly includes narrowband continuous wave (Continuous Wave, CW) and ultra-wideband (Ultra Wideband, UWB) two systems. Among them, UWB radar has strong penetrating ...

Claims

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Application Information

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IPC IPC(8): G01S7/41G01S13/88
CPCG01S7/411G01S13/88
Inventor 梁福来王健琪李钊吕昊祁富贵安强张杨于霄焦腾路国华
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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