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Radar signal processing method and device and aircraft

A radar signal and processing method technology, applied in the field of UAV control, can solve the problems of object detection interference, radar can not accurately identify objects, etc.

Active Publication Date: 2021-04-23
GUANGZHOU XAIRCRAFT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a radar signal processing method and device, and an aircraft to at least solve the technical problem that the radar cannot accurately identify the object due to the interference caused by the multiple propellers of the aircraft to the object detection

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  • Radar signal processing method and device and aircraft
  • Radar signal processing method and device and aircraft
  • Radar signal processing method and device and aircraft

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0023] It should be noted that the terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such ...

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Abstract

The invention discloses a radar signal processing method and device and an unmanned aerial vehicle. The method comprises the following steps: controlling a radar of an aircraft to alternately send electromagnetic waves according to a constant frequency and a non-constant frequency; acquiring a plurality of first echo signals from the echo signals corresponding to the electromagnetic waves, wherein the plurality of first echo signals comprise signals reflected by the electromagnetic waves with non-constant frequency and emitted by the radar when meeting an obstacle; and processing the plurality of first echo signals. According to the invention, the technical problem that the radar cannot accurately identify the object due to the interference of the propeller of the unmanned aerial vehicle to the object detection is solved.

Description

technical field [0001] The present application relates to the field of unmanned aerial vehicle control, in particular, to a radar signal processing method and device, and an aircraft. Background technique [0002] When the main lobe width of the radar is large and the position of the radar is not good, it is easy to appear that the propeller of the aircraft hits the electromagnetic wave emitted by the radar to form an interference signal, and this interference is not only large in energy, but also due to the Doppler frequency shift. Causes it to appear within the important detection range, where it will alias with the reflected signal from the object. In addition, the speed of the propeller will change during the flight of the aircraft, which in turn causes the interference to drift within a certain distance. The existing technology does not have a good algorithm to solve this problem for quad-rotor drones. At present, it is mainly for the single-propeller method of helicop...

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/411G01S7/415
Inventor 钟填荣邓飞杨
Owner GUANGZHOU XAIRCRAFT TECH CO LTD
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