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Field division method of UAV flight control protocol based on information theory

A UAV and protocol word technology, which is applied in the field of reverse analysis of UAV flight control protocol syntax based on information theory, can solve the problem of low accuracy of continuous changing field division, and achieve the effect of improving accuracy.

Active Publication Date: 2021-05-18
XIDIAN UNIV +1
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and propose a UAV flight control protocol field division method based on information theory, which is used to solve the problem of low accuracy in the prior art for continuous variable field division technical issues

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  • Field division method of UAV flight control protocol based on information theory
  • Field division method of UAV flight control protocol based on information theory
  • Field division method of UAV flight control protocol based on information theory

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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] refer to figure 1 , the present invention comprises the following steps:

[0035] Step 1) Preprocess the UAV flight control protocol data set:

[0036] Step 1a) Collect M pieces of binary flight control protocol data packets within the T time range. Since the binary only contains two values ​​of 0 and 1, there will be a problem that the entropy values ​​are very close due to coincidence when directly applied to the calculation of information entropy. Therefore Convert it to hexadecimal, each hexadecimal flight control protocol data packet contains h hexadecimal data, T>10min, M>10000, h≥1, in this example, T=10.25min, M=24651, h=40;

[0037] Step 1b) Arrange M hexadecimal flight control protocol data packets into a hexadecimal flight control data set D according to the order in which the binary flight control protocol data p...

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Abstract

The invention proposes a field division method of the UAV flight control protocol based on information theory. The purpose is to improve the accuracy of continuous field division by mining the amount of information expressed by the data as a feature, including the following steps: preprocessing the UAV flight control protocol data set, and obtaining the regular field bit set L based on information theory And random field bit set R, obtain the separation point set E of the regular field bit set L based on information theory, divide the random field bit set R based on information theory, and obtain all field separation points. The statistical feature extracted by the present invention is the amount of information obtained from the data, fully excavates the potential semantic information of the field, and divides the UAV flight control protocol into a completely random field, a flight control related field and a plurality of regular fields, thereby improving the accuracy of the field. Accuracy of continuous variable field division in UAV flight control protocol.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a field division method of an unmanned aerial vehicle flight control protocol, in particular to a reverse analysis method of an unmanned aerial vehicle flight control protocol syntax based on information theory. Background technique [0002] The UAV communication system is a system that transmits operating instructions between the operator and the UAV through a wireless network according to the established binary protocol. These established binary protocols are UAV communication protocols, and the protocol responsible for the transmission of UAV flight instructions is the UAV flight control protocol. [0003] With the popularity of drones, the lack of methods to control drones has become a major problem. The technology that enables third parties to completely control drones has become the optimal solution for drone control. Protocol to forge data packets to control ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04B7/185
CPCH04B7/18506H04L69/03H04L69/26
Inventor 杨超范偲彧马建峰郑昱苏锐丹贾哲
Owner XIDIAN UNIV