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Radar signal processing method and device, aircraft

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

Active Publication Date: 2022-06-21
GUANGZHOU XAIRCRAFT TECH CO LTD
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  • 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, aircraft
  • Radar signal processing method and device, aircraft
  • Radar signal processing method and device, aircraft

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Embodiment Construction

[0022] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0023] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged un...

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Abstract

The application discloses a radar signal processing method and device, and an unmanned aerial vehicle. Wherein, the method includes: controlling the radar of the aircraft to alternately send electromagnetic waves according to a constant frequency and a non-constant frequency; The electromagnetic wave with a non-constant frequency is a signal reflected by an obstacle; multiple first echo signals are processed. The present application solves the technical problem that the radar cannot accurately identify objects due to the interference caused by the propeller of the drone to the object detection.

Description

technical field [0001] The present application relates to the field of drone control, and in particular, to a method and device for processing radar signals, and an aircraft. Background technique [0002] When the width of the main lobe of the radar is large and the position of the radar is not good, it is easy for the aircraft propeller to hit 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. Cause it to appear in the important detection distance range, and it will alias with the reflected signal of the object. In addition, during the flight of the aircraft, the speed of the propeller will change, which in turn causes the interference to drift within a certain distance. The existing technology does not have a good algorithm for quad-rotor UAVs to solve this problem. At present, it is mainly aimed at the single-propeller method of helicopters, and the ...

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Application Information

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Patent Type & Authority Patents(China)
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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