Unmanned aerial vehicle data link electromagnetic environment effect prediction method and device
A technology of electromagnetic environment and prediction method, applied in radio transmission systems, electrical components, transmission monitoring, etc., can solve the problems of low evaluation accuracy, unrealistic flight working status and flight scene simulation.
Inactive Publication Date: 2020-09-01
ARMY ENG UNIV OF PLA
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[0005] The purpose of the present invention is to provide a dynamic prediction method and equipment for the electromagnetic environment effect of the UAV data link, to solve the problem of untrue simulation of the flight working state and flight scene in the ground evaluation and test of the electromagnetic environment effect of the UAV data link, resulting in evaluation low accuracy problem
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[0063] The present invention will be described in further detail below in conjunction with the examples.
[0064] The invention discloses a method for predicting the electromagnetic environment effect of unmanned aerial vehicle data link, see Figure 1-Figure 4 , including model unit, prediction unit, and discriminant unit, and the model unit includes model unit 1, model unit 2, and model unit 3, wherein:
[0065] Model unit 1, establish the UAV flight model, analyze the application scenario of the spatial information interaction between the airborne end of the data link and the ground end during the flight of the UAV, so as to establish the spatial position of the UAV, the flight attitude of the UAV, and the electromagnetic interference A model of the source spatial location;
[0066] Model unit two, based on the UAV space position and UAV flight attitude obtained in model unit one, combined with the transmission power of the UAV data link ground end, the characteristics of ...
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The invention relates to an unmanned aerial vehicle data link electromagnetic environment effect prediction method and device. The method comprises: a first model unit, establishing an unmanned aerialvehicle flight model; a second model unit, establishing a working signal receiving model of the airborne end of the unmanned aerial vehicle data link; a third model unit, establishing an airborne endinterference signal receiving model of the unmanned aerial vehicle data link; a prediction unit, calculating an interference-to-signal ratio; a judgment unit, for defining the interference-to-signalratio as a dynamic suppression coefficient K of external electromagnetic interference on the unmanned aerial vehicle data link, judging the K and the maximum allowable suppression coefficient Ks, andavoiding data link communication interruption when K is less than or equal to Ks. According to the method, the dynamic prediction of the electromagnetic environment effect of the data link of the unmanned aerial vehicle can be obtained, the relative motion states of the ground end, the airborne end and the electromagnetic interference source of the data link and the dynamic change, caused by the relative motion states, of the airborne end for receiving the working signal and the interference signal can be simulated, and the prediction accuracy and reliability are high.
Description
technical field [0001] This patent application relates to the technical field of electromagnetic environmental effect assessment, and more specifically, relates to a method and equipment for predicting electromagnetic environmental effects of UAV data links. Background technique [0002] The core task equipment of UAV information transmission is the data link. Its working principle is to establish a space link to realize telemetry and remote control. If this process is disturbed, the link will be blocked, the communication will be blocked, and the mission command cannot be executed. data error etc. [0003] With the increase of spectral density and power capacity of frequency equipment, the electromagnetic environment of UAV flight is getting worse and worse. Predicting and evaluating the electromagnetic environment effect of UAV data link is an important means to grasp its electromagnetic safety. [0004] To predict and evaluate the electromagnetic environment effects of t...
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Login to View More IPC IPC(8): H04B17/373H04B17/336H04B17/345H04B17/391H04B7/185
CPCH04B7/18506H04B17/336H04B17/345H04B17/373H04B17/3913
Inventor 陈亚洲王玉明张冬晓程二威赵敏许彤
Owner ARMY ENG UNIV OF PLA