Ultra-wideband Doppler radar life detection system

A Doppler radar and life detection technology, applied in the field of ultra-wideband Doppler radar life detection system, can solve the problems of poor signal anti-jamming ability, low accuracy, low reliability, etc., to improve the signal-to-noise ratio, enhance the Handling, high reliability effects

Pending Publication Date: 2021-08-20
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide an ultra-wideband Doppler radar life detection system, which aims to solve the problems of low reliability, poor signal anti-interference ability and low accuracy of the existing radar life detection system

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  • Ultra-wideband Doppler radar life detection system
  • Ultra-wideband Doppler radar life detection system
  • Ultra-wideband Doppler radar life detection system

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

[0039] Such as figure 1 As shown, the present invention provides a kind of UWB Doppler radar life detection system, comprises transmitting module, receiving module and data processing module; The signal source of transmitting module and the signal source of receiving module keep signal synchronization through data synchronous interface; The module is used to transmit electromagnetic radio freque...

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Abstract

The invention discloses an ultra-wideband Doppler radar life detection system, and belongs to the technical field of radars. The system comprises a transmitting module, a receiving module and a data processing module, the transmitting module and the receiving module keep signal synchronization; the transmitting module is used for transmitting an electromagnetic radio-frequency signal, the electromagnetic radio-frequency signal is modulated by electromagnetic information of a tested life to form an echo signal, the receiving module is used for preprocessing a received signal, and the data processing module is used for performing data analysis on the preprocessed received signal; a weak signal detection mode based on stochastic resonance is adopted to realize spectrum analysis and extraction of signals so as to realize detection and capture of weak life electromagnetic information. A bistable stochastic resonance detection mode of secondary sampling and parameter compensation is adopted for received weak physiological characteristic signals, and spectrum migration and enhancement processing of signals to be detected are achieved by means of difference of gain characteristics of bistable stochastic resonance on different frequency components.

Description

technical field [0001] The invention belongs to the technical field of radar, and more specifically relates to an ultra-wideband Doppler radar life detection system. Background technique [0002] my country is a country with frequent earthquakes. Natural disasters and safety production accidents in industrial production occur from time to time. Every year, a large number of trapped people lose their lives without timely treatment. Therefore, real-time search and rescue at disaster sites has become more and more important. High demands are placed on search and rescue equipment. The situation at the disaster site is complex, and the trapped people are often trapped in many obstacles. The complexity of finding the trapped people and the difficulty of searching and rescue are very high. How to locate the trapped people in a short period of time is very important for real-time search and rescue. Very important. [0003] With the rapid development of sensor technology and informa...

Claims

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Application Information

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IPC IPC(8): G01S13/88G01S13/89G01S7/41
CPCG01S13/888G01S13/89G01S7/414G01S7/411
Inventor 杨红权
Owner HUAZHONG UNIV OF SCI & TECH
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