Unmanned aerial vehicle formation consistency control method, system and device under time-varying channel based on topological optimization and storage medium

A topology optimization and time-varying channel technology, applied in the field of UAVs, can solve the problems that it is difficult to adapt to the actual needs of coordinated attacks by UAVs, the difficulty of constructing potential field functions, and the unsatisfactory satisfaction, etc., to ensure control accuracy and good performance. Technical effect, effect of improved topology

Active Publication Date: 2020-01-10
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

[0008] (1) At present, the task allocation algorithm of UAV is mainly based on the centralized task allocation algorithm, but in the actual multi-task attack system of UAV, due to the existence of different types of UAVs and multiple attack targets, for complex tasks Allocation problem, the solution efficiency is low and a satisfactory solution cannot be obtained
[0009] (2) At present, the coordinated trajectory planning of UAVs mainly adopts the method based on offline path planning. However, due to the complexity of the battlefield environment and the mobility of the attacked target, the coordinated trajectory designed offline is often difficult to adapt to the coordinated attack of UAVs. Actual demand
But the disadvantage is that there are local extreme points, and it is more difficult to construct the potential field function

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  • Unmanned aerial vehicle formation consistency control method, system and device under time-varying channel based on topological optimization and storage medium
  • Unmanned aerial vehicle formation consistency control method, system and device under time-varying channel based on topological optimization and storage medium
  • Unmanned aerial vehicle formation consistency control method, system and device under time-varying channel based on topological optimization and storage medium

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Embodiment Construction

[0058] One of the main challenges faced by multi-UAV formation control in low-altitude and highly dynamic environments is the time-varying connectivity in multipath fading channels, leading to low precision and uncertain convergence times of control laws. In order to solve this problem, the present invention discloses a UAV formation consistency control method based on topology optimization under a time-varying channel, and performs distributed consistency control through two topology optimization ideas of formation reconstruction and power allocation to ensure Control accuracy within a finite convergence time. In particular, the second eigenvalue of the Laplacian matrix is ​​incorporated into the objective function of topology optimization as an index for evaluating and measuring topology connectivity.

[0059] Such as figure 1 As shown, the present invention discloses a UAV formation consistency control method based on topology optimization under a time-varying channel, inc...

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Abstract

The invention provides an unmanned aerial vehicle formation consistency control method, system and device under a time-varying channel based on topological optimization, and a storage medium. The method comprises the steps: performing distributed data transmission by unmanned aerial vehicles in a formation to obtain a formation topology; selecting a point with the maximum in-degree in the formation topology as a central point of the formation, and calculating an algebraic characteristic value of a topological Laplace matrix by combining the central point with global formation topology information; estimating the maximum convergence time of prediction consistency control according to the relationship between the algebraic characteristic value and the formation consistency control rate; carrying out topology reconstruction and optimization on the formation; and performing consistency control according to the optimized formation topology. The invention has the beneficial effects that thetopological structure can be effectively improved, the formation control under a deteriorated multipath channel is enhanced, the control precision within limited convergence time can be ensured, and avery good technical effect is achieved.

Description

technical field [0001] The present invention relates to the technical field of unmanned aerial vehicles, in particular to a method, system, device and storage medium for controlling unmanned aerial vehicle formation consistency under time-varying channels based on topology optimization. Background technique [0002] With the in-depth study of a single UAV, the limitations of a single UAV are becoming more and more obvious. The problem of multi-UAV formation control has always been a hot topic in the UAV field. UAV formation flight is to use two or more UAVs of the same type or different types to complete the specified flight mission in a specific formation. If the battlefield environment or mission mode changes, it must be carried out according to the actual situation. The formation is reconstructed and transformed into a new formation. Compared with a single UAV, multi-UAV formation cooperative missions have the following advantages: [0003] (1) Improve the success rate ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/104Y02T10/40
Inventor 杨志华郝磊种竟争齐晓晗
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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