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Positioning method via UWB (ultra wide band) radar networking in process of autonomous taking off and landing of UAV (unmanned aerial vehicle)

A technology of ultra-wideband radar and positioning method, applied in the field of unmanned aerial vehicles, to achieve the effect of simplifying the calibration process

Inactive Publication Date: 2015-04-08
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that: aiming at the technical problems existing in the prior art, the present invention provides a UAV with a wide application range, good reliability, and the ability to complete autonomous take-off and landing positioning in various complex environments. Network positioning method of ultra-wideband radar during descent

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  • Positioning method via UWB (ultra wide band) radar networking in process of autonomous taking off and landing of UAV (unmanned aerial vehicle)
  • Positioning method via UWB (ultra wide band) radar networking in process of autonomous taking off and landing of UAV (unmanned aerial vehicle)
  • Positioning method via UWB (ultra wide band) radar networking in process of autonomous taking off and landing of UAV (unmanned aerial vehicle)

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Such as figure 1 As shown, the UWB radar network positioning method in the autonomous take-off and landing process of the UAV of the present invention, the steps are:

[0035] S1: Carry out ultra-wideband radar networking; set up airborne UWB ultra-wideband radar, and set up several reference nodes on the ground of the airport to form an ultra-wideband radar networking;

[0036] As a preferred embodiment, this embodiment further includes an ultra-wideband radar networking calibration process; that is, includes:

[0037] S101: defining a reference plane;

[0038] Assuming that the airport ground is a horizontal plane, place three reference nodes on the horizontal plane and not on the same straight line, take one of the reference node A as the origin, take the direction from A to B as the X axis, and take the horizontal plane a...

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Abstract

The invention discloses a positioning method via UWB (ultra wide band) radar networking in the process of autonomous taking off and landing of a UAV (unmanned aerial vehicle), the steps of which are: S1: conducting UWB radar networking; arranging an airborne UWB radar, and arranging a plurality of datum points on the airport ground to constitute a UWB radar net; S2: conducting UAV coordinate position calculation via the UWB radar net. The method has the advantages that the scope of application is wide, the reliability is good, and autonomous taking off and landing positioning can be finished in various complex environments.

Description

technical field [0001] The invention mainly relates to the field of unmanned aerial vehicles, in particular to an ultra-wideband radar network positioning method suitable for the autonomous take-off and landing process of unmanned aerial vehicles. Background technique [0002] With the continuous improvement of UAV performance, it has been widely used in civil and military fields. In the process of take-off, landing and flight, UAV requires real-time acquisition of its spatial position information, which is the key to the process of take-off and landing. Judging from the statistics of UAV accidents in various countries, most of the accidents occurred during the take-off and landing of UAVs. Generally speaking, the spatial position of the UAV can be obtained using a satellite positioning system (such as GPS / Beidou), but the signal of the satellite positioning system may be rejected in a complex environment, making it impossible to obtain high-precision position information, ...

Claims

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Application Information

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IPC IPC(8): H04B1/7163H04B7/185H04W64/00G01S13/08
Inventor 方强相晓嘉陈超唐邓清李宏亮朱华勇张代兵刘敏胡豆赵述龙
Owner NAT UNIV OF DEFENSE TECH
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