Method for improving detection accuracy of unmanned aerial vehicle

A UAV and accuracy technology, applied in the field of UAV detection, can solve the problem that the radio spectrum cannot detect the precise location of UAVs, cannot distinguish non-UAV targets, hover and ultra-low-speed flying UAVs and other problems to achieve the effect of reducing radiation hazards, reducing use time and extending service life

Active Publication Date: 2021-04-02
陕西山利科技发展有限责任公司 +2
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the detection accuracy of UAVs, which solves the problem that a single radar in the prior art cannot distinguish between non-UAV targets, hovering and ultra-low-speed flying UAVs. The Radio Spectrum Cannot Detect the Precise Location of Drones

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  • Method for improving detection accuracy of unmanned aerial vehicle
  • Method for improving detection accuracy of unmanned aerial vehicle
  • Method for improving detection accuracy of unmanned aerial vehicle

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Embodiment Construction

[0045]The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] The present invention is a method for improving the detection accuracy of unmanned aerial vehicles, such as figure 1 As shown, the specific steps are as follows:

[0047] Step 1. Determine the detection range according to the radar deployment location and the actual detection requirements. Specifically, follow the steps below, such as Figure 4 Shown:

[0048] Step 1.1.1. Deploy radar in the area where protection is required;

[0049] Step 1.1.2, take the radar position as the center point of the core area, and the position of the center point is P(x 0 ,y 0 ), taking the circular area with the radius K as the radius from P to the farthest corner of the protection area as the core area;

[0050] Step 1.1.3, the boundary of the core area is extended outward by S meters as the early warning area, and S is the product of the flight spe...

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Abstract

The invention discloses a method for improving the detection accuracy of an unmanned aerial vehicle. The method is specifically implemented according to the following steps of: 1, determining a detection range, determining a frequency spectrum target surface, and numbering the frequency spectrum target surface; 2, determining the movement direction of the frequency spectrum target surface according to the position change of the frequency spectrum target surface with the same number in the next T second and the previous T second; 3, scanning through a radar, preprocessing target data scanned bythe radar, and dividing target threat levels in combination with the frequency spectrum target surface motion direction obtained in the step 2; 4, screening out corresponding grade targets in a frequency spectrum target plane and reserving the corresponding grade targets as to-be-selected targets of the platform alarm information; and 5, warning and displaying the to-be-selected target track information within T seconds or the spectrum information within T seconds screened in the step 4 through a system. According to the method, the problem that a single frequency spectrum cannot detect accurate longitude, latitude, elevation, flight path and other information of the unmanned aerial vehicle is solved.

Description

technical field [0001] The invention belongs to the technical field of drone detection, and relates to a method for improving the detection accuracy of drones. Background technique [0002] With the rapid development of the drone industry, the number of domestic drones has grown rapidly, but security incidents such as drone disturbance, illegal shooting and mapping, and illegal intrusion have occurred frequently. In response to the above illegal incidents, drone detection technology based on radar and radio spectrum has emerged. Among them, the low-slow and small radar realizes the precise detection of low-slow and small targets by solving the problems of slow-moving birds and unmanned aerial vehicles, low flight altitude, strong maneuverability, small radar cross-sectional area, and complex detection environment; radio spectrum detection technology , The radio detection equipment is used to monitor the communication frequency band of the UAV around the clock, and the data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/86
CPCG01S13/86
Inventor 吴波宁耀博杨慧霞肖小珍陈欣胡章臻任亚丽张日明侯阿敏闫文娟
Owner 陕西山利科技发展有限责任公司
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