Unmanned aerial vehicle active eavesdropping method combining trajectory and interference power optimization

An unmanned aerial vehicle, legal technology, applied in the direction of communication interference, wireless communication, advanced technology, etc., can solve problems such as expanding the scope of criminal or terrorist activities, national security threats, etc.

Pending Publication Date: 2021-03-16
HUAQIAO UNIVERSITY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, with the popularity of drone communication systems, low-cost wireless services expand the range of activities of criminals or terrorists, posing a serious threat to national security

Method used

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  • Unmanned aerial vehicle active eavesdropping method combining trajectory and interference power optimization
  • Unmanned aerial vehicle active eavesdropping method combining trajectory and interference power optimization
  • Unmanned aerial vehicle active eavesdropping method combining trajectory and interference power optimization

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Embodiment Construction

[0059] The purpose of the present invention is to overcome the shortcoming of above-mentioned prior art, research a kind of unmanned aerial vehicle (Unmanned AerialVehicle, UAV) as the wireless communication eavesdropping scheme of legal wiretapping device UAV (E), in this scheme, a legal wiretapping device ( A UAV(E)) is used to eavesdrop on suspicious messages sent by a suspicious transmitter (UAV(B)) to a suspicious receiver on the ground. Using the characteristics of suspicious systems, an effective active jamming scheme is proposed to maximize the eavesdropping rate.

[0060] Please refer to figure 1 , the embodiment of the present invention discloses a UAV active eavesdropping method for joint trajectory and interference power optimization, including:

[0061] Step 10. In the UAV active eavesdropping model, set the initial trajectory of the suspicious transmitter respectively The initial transmission power P of the suspicious transmitter B , the initial trajectory of...

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Abstract

The invention provides an unmanned aerial vehicle active eavesdropping method combining trajectory and interference power optimization, aiming at the influence of trajectory change of an unmanned aerial vehicle on the effective eavesdropping rate of a system, an effective active interference scheme is adopted in a model, i.e., the unmanned aerial vehicle sends an interference signal to interfere asuspicious receiver while eavesdropping suspicious link information. In order to maximize the effective eavesdropping rate, the updating rate assisted block coordinate descent and continuous convex optimization technology is used for optimizing the track and sending interference power of the unmanned aerial vehicle, and then the effective eavesdropping rate is improved.

Description

technical field [0001] The invention relates to the technical field of communication monitoring, in particular to an active eavesdropping method for an unmanned aerial vehicle combined with trajectory and interference power optimization. Background technique [0002] In recent years, due to the characteristics of high mobility and low cost of UAVs, the demand for applications in public safety, disaster management, surveillance, and communication has continued to grow. However, with the popularity of drone communication systems, low-cost wireless services expand the range of activities of criminals or terrorists, posing a serious threat to national security. To fend off criminal or terrorist attacks, government agencies increasingly need to legally monitor any suspicious communication links and detect anomalous behavior in commercial wireless networks. [0003] The trajectory optimization problem of UAVs is crucial in UAV networks, mainly because of the high maneuverability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W12/121H04W28/02H04K3/00
CPCH04K3/43H04K3/825H04W12/02H04W28/0226H04W28/0236Y02D30/70
Inventor 赵睿周洁张孟杰王培臣
Owner HUAQIAO UNIVERSITY
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