Quasi-generative unmanned aerial vehicle induction method and system
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A drone and generative technology, applied in the field of satellite navigation, can solve problems such as unrealizable, drone navigation deception, etc., and achieve the effect of fast deception and good deception effect
Active Publication Date: 2020-10-02
BEIHANG UNIV
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[0006] In view of the above analysis, the present invention aims to provide a quasi-generated UAV induction method and system to solve the problem that existing methods cannot achieve fast, efficient and concealed target UAV navigation deception
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Embodiment 1
[0058] A specific embodiment of the present invention discloses a quasi-generated unmanned aerial vehicle guidance system, the structural diagram is as follows figure 1 As shown, the system includes: a signal receiving unit, a target tracking unit, a strategy generating unit, and an induced signal generating unit; wherein,
[0059] The signal receiving unit is used to receive and analyze the real satellite navigation signals of all visible satellites, and obtain the ephemeris information and timing information of all visible satellites; for example, in this process, a high-performance satellite navigation receiver can be used to receive all satellite navigation signals in real time. The real navigation signal of the satellite can be seen, and the capture, tracking, ephemeris reception, positioning calculation, navigation information storage / output, and timing information acquisition of the real satellite navigation signal can be completed. Exemplarily, the signal receiving uni...
Embodiment 2
[0096] In Embodiment 2 of the present invention, a quasi-generated UAV induction method is also provided, the flow chart is as follows figure 2 As shown, the method includes the following steps:
[0097] Step S1: Receive and analyze the real satellite navigation signals of all visible satellites in real time, obtain the ephemeris information and timing information of all visible satellites; also obtain the current position of the target UAV in real time;
[0098] Step S2: Generate a pseudo-range delay based on the ephemeris information of all visible satellites, the current position of the target drone, and the expected position of the target drone at the next moment;
[0099] Step S3: Select the real satellite navigation signal of the visible satellite for delay, and generate a radio frequency signal based on the real satellite navigation signal of the selected visible satellite for delay;
[0100] Step S4: Use the pseudo-range delay to delay the radio frequency signal, and...
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Abstract
The invention relates to a quasi-generative type unmanned aerial vehicle induction method and system, belongs to the technical field of satellite navigation, and solves the problem that rapid, efficient and hidden target unmanned aerial vehicle navigation cheating cannot be realized in the prior art. The system comprises a signal receiving unit used for receiving and analyzing real satellite navigation signals of all visible satellites and obtaining ephemeris information; a target tracking unit used for collecting the current position of the target unmanned aerial vehicle in real time; a strategy generation unit used for outputting pseudo-range delay, the real satellite navigation signal of the selected visible satellite for delay and transmitting power for power enhancement on the basis of the ephemeris information, the current position of the target unmanned aerial vehicle and the expected position at the next moment; and an induction signal generation unit used for generating a radio frequency signal based on the real satellite navigation signal of the selected visible satellite for delay, carrying out delay and power enhancement on the radio frequency signal in sequence to generate induction signals, and sending the induction signals to the target unmanned aerial vehicle.
Description
technical field [0001] The invention relates to the technical field of satellite navigation, in particular to a quasi-generated unmanned aerial vehicle induction method and system. Background technique [0002] In recent years, UAV technology has developed rapidly and is widely used in emergency rescue, military operations, remote sensing mapping, agricultural plant protection and many other fields, and has great application value in national defense construction and economic development. However, due to the small size and simple control of drones, they are easily used by criminals. There have been many incidents of drones illegally entering sensitive airspaces such as the White House, the Japanese Prime Minister's Office, civil aviation and military airports around the world. Therefore, effective countermeasures must be adopted. [0003] The drone induction system transmits false satellite navigation and positioning signals to the target drone to induce it to deviate from ...
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