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A passive positioning method and system based on UAV swarm

A passive positioning and unmanned aerial vehicle technology, used in radio wave measurement systems, positioning, instruments, etc., to achieve the effect of passive positioning accuracy and improved positioning accuracy

Active Publication Date: 2022-04-08
AIR FORCE EARLY WARNING ACADEMY
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] Aiming at the defects of the prior art, the present invention provides a passive positioning method and system based on UAV swarms, the purpose of which is to improve the passive positioning accuracy of UAV swarms for radar radiation sources

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  • A passive positioning method and system based on UAV swarm
  • A passive positioning method and system based on UAV swarm
  • A passive positioning method and system based on UAV swarm

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Embodiment Construction

[0056] 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.

[0057] The present invention provides a passive positioning method based on UAV clusters to solve the problem of passive positioning of target radiation sources by UAV clusters. The principle is as follows:

[0058] Such as figure 1 As shown, when the target radiation source is located at the origin O point, OO 1 perpendicular to the plane of space AO 1 B , the foot is O 1 , when the beam of the radiation source irradiates the plane vertically AO 1 B , in this plane with O 1 The amplitudes measured at any point on the circle with the center of the circle are equal, and vice versa; ...

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Abstract

The invention provides a passive positioning method and system based on unmanned aerial vehicle clusters, which belong to the field of early warning and detection of unmanned aerial vehicles. Transform and obtain the map; when the feature of the map does not meet the first judgment basis, rotate the UAV cluster around the rotation axis, and measure the amplitude of the electromagnetic wave in real time to update the map until the map feature meets the first judgment basis and stop the rotation; judge whether the feature of the map is Satisfy the second judgment basis, if the second judgment basis is not satisfied, turn the UAV cluster around the flip axis at the center of the front, and measure the electromagnetic wave amplitude in real time to update the map until the map features meet the second judgment basis and stop flipping; do The front normal of the center of the front of the UAV cluster, the intersection point of the front normal and the ground is the position of the target radiation source; the invention realizes the passive positioning of the ground radiation source target based on the UAV cluster.

Description

technical field [0001] The invention belongs to the field of early warning and detection of unmanned aerial vehicles, and more specifically relates to a passive positioning method and system based on unmanned aerial vehicle clusters. Background technique [0002] Radar is currently the main detection equipment used by most incoming platforms and weapon systems. In electronic countermeasures and reconnaissance, the location of radar emitter targets is an important reconnaissance content and a prerequisite for further reconnaissance, interference and damage to radar targets. Due to the small load and other reasons, UAVs cannot carry expensive positioning equipment such as lasers and radars. Generally, they perform passive positioning of target radiation sources during reconnaissance missions. In this case, only spatial position information can be used to calculate positioning using spatial geometry, which takes a long time to locate and makes high-precision positioning difficu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/04G06F17/14
CPCG01S5/04G06F17/14
Inventor 冷毅余国文张戍育黎静张逸楠张福群王广学何明浩王冰切
Owner AIR FORCE EARLY WARNING ACADEMY
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