Electromagnetic interference signal reproduction system and reproduction method for data chain test of unmanned aerial vehicle

A technology of electromagnetic interference and data link, which is applied in the transmission system, electrical components, transmission monitoring, etc., can solve the problems of high cost and time-consuming, and achieve the effect of automation

Active Publication Date: 2016-12-21
BEIHANG UNIV
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Problems solved by technology

This method is costly, time consuming and presents significant risk to UAV platforms

Method used

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  • Electromagnetic interference signal reproduction system and reproduction method for data chain test of unmanned aerial vehicle
  • Electromagnetic interference signal reproduction system and reproduction method for data chain test of unmanned aerial vehicle
  • Electromagnetic interference signal reproduction system and reproduction method for data chain test of unmanned aerial vehicle

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The present invention firstly provides an electromagnetic interference signal reproduction system for unmanned aerial vehicle data link testing, such as figure 2 As shown, the described reproduction system includes the use of an arbitrary waveform generator 7, a numerically controlled attenuator 8, an omnidirectional antenna 9, a spectrum analyzer 10 and two personal computers, wherein one computer is used as a test machine 5 to send interference instructions, and the other One is used as an interference reappearance machine 6 to receive interference instructions or locally generate interference instructions, and generate specific interference waveform data and attenuation data. The test machine 5 and the interference reproducing machine 6 are connected by a network cable, and the interference instruction is sent and received through the UDP protocol. The int...

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Abstract

The invention discloses an electromagnetic interference signal reproduction system and an electromagnetic interference signal reproduction method for a data chain test of an unmanned aerial vehicle, and belongs to the field of anti-interference of the data link of the unmanned aerial vehicle. The reproduction system of the invention comprises an arbitrary waveform generator, a numerical control attenuator, an omnidirectional antenna, a spectrometer and two personal computers, wherein one computer is used as a test machine for sending an interference command, and the other one is used as an interference reproduction machine for receiving the interference command and generating a specific interference waveform and attenuation data. The reproduction method comprises the steps that firstly a control mode is selected at the interference reproduction machine, and an interference waveform is generated according to an interference parameter within a permissible range; then the numerical control attenuator attenuates power of the actual waveform according to an attenuation parameter to reproduce the waveform; and at last the interference reproduction machine sends a return report to the test machine. According to the system and method of the invention, the two working modes are used for complementing each other, thus being applicable to different control requirements; dynamic reproduction of an electromagnetic interference environment is achieved; and the interference waveforms with arbitrary parameters and shapes can be generated.

Description

technical field [0001] The invention belongs to the field of anti-interference of unmanned aerial vehicle data link, and specifically refers to an electromagnetic interference signal reproduction system for unmanned aerial vehicle data link test. Background technique [0002] With the continuous development of electronic information technology, the electromagnetic environment in which the UAV data link is located is becoming more and more complex, full of various electromagnetic signals, mainly including communication signals, navigation signals, radar signals, and malicious interference signals from the enemy. According to the source of electromagnetic signals, the electromagnetic environment of UAV data link is divided into two types: natural electromagnetic environment and artificial electromagnetic environment. The man-made electromagnetic environment can be divided into countermeasure signal electromagnetic environment and non-countermeasure signal electromagnetic envir...

Claims

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Application Information

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IPC IPC(8): H04B17/391
CPCH04B17/391
Inventor 丁文锐赵新涛刘春辉
Owner BEIHANG UNIV
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