Time ranging method for unmanned aerial vehicles under TDD system

A ranging method and UAV technology, applied in the field of communication, can solve the problems of low measurement accuracy and small range, and achieve the effects of reducing battery life, weight and cost.

Pending Publication Date: 2019-03-08
成都国恒空间技术工程股份有限公司
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Problems solved by technology

This paper proposes a time-ranging method for UAVs, which solves the problems of small range and low measurement accuracy of traditional UAV ranging methods. It is low-cost and can better adapt to various special environments, and has high engineering applications. value

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  • Time ranging method for unmanned aerial vehicles under TDD system
  • Time ranging method for unmanned aerial vehicles under TDD system
  • Time ranging method for unmanned aerial vehicles under TDD system

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Embodiment Construction

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0031] Such as figure 2 As shown, the basic workflow of the system is as follows: the ground control equipment is used to modulate the control command of the control aircraft to the specified frequency and transmit it, and at the same time receive the signal transmitted by the UAV, and demodulate the video data and status returned by the aircraft Information; the UAV is used to modulate the compressed video data and aircraft status information to the specified frequency and transmit it, and at the same time receive the signal transmitted by the ground control equipment, and perform corresponding actions according to the instruction information. When the ground equipment detects the ranging command from the outside, it encapsulat...

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Abstract

The invention discloses a time ranging method and device for unmanned aerial vehicles. The method includes the following steps: ground equipment packages a ranging instruction in uplink control burstand sends the ranging instruction, and deliveries ranging instruction to an unmanned aerial vehicle through spatial communication; and the unmanned aerial vehicle captures the ranging instruction, packages a response signal in downlink data burst and sends the response signal, and deliveries the response signal to the ground equipment through the spatial communication, so that a distance can be calculated according to the time delay of the response signal and the ranging instruction. The method can solve problems of small scope and low measuring precision of traditional unmanned aerial vehicleranging methods, is low in cost, can well adapt various special environments, and has high engineering application values.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to time ranging. Background technique [0002] In military applications, the ground control center needs to transmit commands and combat information to the drone to control the flight trajectory and attitude of the aircraft, and at the same time adjust the information acquisition strategy of the drone. The UAV transmits audio and video data or images to the ground control center through the downlink to provide decision makers with combat information. At the same time, the UAV will also transmit its own status information and equipment parameters to the ground to help ground personnel understand flight status of the aircraft. Among the many state information, the parameter of the distance between the UAV and the ground control center is more important. This parameter has the following three functions: [0003] 1. The ground personnel can adjust the aircraft's heading, speed a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/02
CPCG01S11/02
Inventor 魏明强赵深林丁伟
Owner 成都国恒空间技术工程股份有限公司
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