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Detection method of measurement and control signals of unmanned aerial vehicle in complex network environment

A detection method and complex network technology, applied in the field of communication, can solve the problem that the UAV measurement and control signal cannot be detected well, and achieve the effect of low computational complexity and reduced false alarm probability

Active Publication Date: 2018-06-12
CHENGDU ACTI TECH & DEV CO LTD
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Problems solved by technology

(3) Keep the maximum value of the spectrum, and its envelope is a broadband signal with a flat passband and a steep transition band. Therefore, the above two methods cannot detect the UAV measurement and control signal well.

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  • Detection method of measurement and control signals of unmanned aerial vehicle in complex network environment
  • Detection method of measurement and control signals of unmanned aerial vehicle in complex network environment

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[0032] 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.

[0033] see figure 1 , the detection of UAV measurement and control signals is realized through steps 1-5:

[0034] Step 1: Use the general radio digital receiver to perform continuous spectrum scanning on the target frequency band, collect the baseband IQ data for calculation, obtain the power spectral density data and keep the maximum value, so that the measurement and control signal envelope has a wide band with a flat pass band and a steep transition band signal, and then uploaded to the host computer;

[0035] Step 2: The host computer software calls the signal detection algorithm dynamic library in the background, performs carrier detection on the power spectral density data after the maximum value is maintained, and extrac...

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Abstract

The invention discloses a detection method of measurement and control signals of an unmanned aerial vehicle in a complex network environment, by keeping a maximum value for power spectrum density data, performing carrier detection for the power spectrum density data subjected to maximum value keeping, performing unmanned aerial vehicle signal identification for a carrier detection result and thencumulatively reporting the unmanned aerial vehicle signal identification result, detection of the measurement and control signals of the unmanned aerial vehicle is realized. In the method provided bythe invention, by fast Fourier transform, detecting the measurement and control signals of the unmanned aerial vehicle in the complex network environment with less computation quantity is realized, and the method is simple and convenient.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method for detecting UAV measurement and control signals in a complex network environment. Background technique [0002] In non-cooperative communication, the primary task of signal analysis is to obtain the three-dimensional characteristics of frequency, time, and power of the target signal from the complex electromagnetic environment, and the acquisition of three-dimensional characteristics of the signal mainly relies on signal detection technology. [0003] At present, the existing signal detection methods are roughly divided into two categories: one is to observe whether there is a signal that meets the frequency and power characteristics in the frequency range through Fourier transform, and if it is satisfied, then through cumulative capture, it is judged whether the time characteristic is satisfied. In order to capture the target signal and measure its three-dimensional char...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/309
CPCH04B17/309
Inventor 韩周安张文权黄勇于延辉
Owner CHENGDU ACTI TECH & DEV CO LTD