A dynamic target detection method based on ultra-wideband

A detection method and dynamic target technology, applied in the field of target detection, can solve problems such as small detection range, poor visibility, and difficulty in implementation, and achieve the effects of stable detection threshold, reduced false alarm rate, and improved measurement accuracy
CN113311385BActive Publication Date: 2022-08-09NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2022-08-09

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Abstract

The invention discloses a method for dynamic target detection with ultra-wideband technology. The method first needs to deploy a pair of UWB nodes on both sides of the area to be detected as sensors, and they send and receive UWB signals of specific frequencies to each other as acquisition signals. After the sensor is deployed, preliminary background collection and noise model fitting are required first. This process is performed only once and can be regarded as system initialization. Based on the obtained noise model, we use constant false alarm detection and a series of specific methods proposed for the difficulty of this problem to calculate the target detection threshold, thereby realizing real-time detection of dynamic targets. The experimental results show that the detection results obtained in this method greatly reduce the influence of clutter on the detection accuracy, and obtain a lower false alarm rate and a higher detection rate. With the development of wireless sensor networks, the present invention can be networked and deployed in sensitive areas, and has broad application prospects in the fields of battlefield monitoring, intelligent transportation and the like.
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Description

technical field

[0001] The invention belongs to the field of target detection, in particular to an ultra-wideband-based dynamic target detection method. Background technique

[0002] The invention aims to realize the non-contact existence detection of the target in a certain area, and can be used in the fields of interval speed measurement, target identification and tracking, target positioning, battlefield monitoring and the like. Existing commonly used non-contact target detection technologies include infrared detection, laser detection, ultrasonic detection and radio detection. Infrared detection usually uses infrared equipment such as infrared cameras to obtain image information of the target area, and then realizes the recognition of the target through image analysis methods. However, this detection method requires certain visibility requirements and is difficult to implement under the condition of poor visibility. Laser detection realizes the detection and speed measu...

Claims

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