An anti-radiation UAV search path planning method based on field of view constraints
An unmanned aerial vehicle and anti-radiation technology, applied in the field of man-machine, can solve the problems of reducing the combat effectiveness of anti-radiation unmanned aerial vehicles, not ensuring the coverage of anti-radiation unmanned aerial vehicles, etc., to achieve the effect of enhancing scientificity
Active Publication Date: 2022-07-05
NAT UNIV OF DEFENSE TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The search track formed by this method only realizes the optimization of the track distance, but it does not guarantee the maximum coverage of the anti-radiation UAV on the target, which reduces the combat effectiveness of the anti-radiation UAV
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0081] as attached image 3 Shown is a three-dimensional instantaneous field of view model diagram of the present invention. Among them: P is the position of the UAV seeker on the Z axis, O is the projection point of point P on the ground, H is the flying height of the UAV at a certain moment (the target altitude is 0 meters horizontally), and the graph ABCD is The instantaneous field of view covers the area of S, D 1 , D 2 is the midpoint of line segment AB and line segment CD. ∠OPD 1 , ∠OPD 2 is the detection angle θ min , θ max ,∠D 1 PD 2 is the detection angle range Δθ, and ∠DPC is the horizontal field of view angle range 2ψ. Seeker farthest detection distance PD 2 =R max , the nearest detection distance PD 1 =R min , the near-boundary width of the field of view AB=r ab , the far boundary width of the field of view CD=r cd .
[0082] Step 1: Establish a three-dimensional instantaneous field of view model and determine the coverage of the instantaneous fie...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention proposes a method for anti-radiation unmanned aerial vehicle search track planning based on field of view constraints, which solves the problem that the field of view coverage is not considered in the track planning of the anti-radiation unmanned aerial vehicle. Construct a 3D instantaneous field of view model and a dynamic field of view model based on the field of view coverage, determine the calculation method of the field of view coverage, rasterize the task area based on the field of view boundary, and calculate the field of view coverage of the search track as the search track evaluation. The fitness function is constructed by the weighted summation of the field of view coverage and the voyage cost, and finally the optimal search trajectory of the anti-radiation UAV is generated through the improved genetic algorithm, which enhances the scientificity and rationality of the trajectory planning. It can give full play to the combat effectiveness of anti-radiation UAVs.
Description
technical field [0001] The invention belongs to the field of man-machine technology, and relates to a method for planning a search track of an anti-radiation unmanned aerial vehicle based on a field of view constraint. Background technique [0002] Anti-radiation UAV is a new type of anti-radiation weapon that can effectively suppress and damage electromagnetic radiation sources such as radar air defense systems and communication centers. The passive radar seeker installed on the head of the UAV can realize the hidden radiation sources in the combat area. The process of signal target search, signal interception, identification and tracking, and the passive radar seeker also adds field-of-view constraints to the search of the target by the anti-radiation UAV. In addition, the anti-radiation UAV has the characteristic of "don't care after launch", and can only fly according to the predetermined track in the search phase, so higher requirements are put forward for the pre-searc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20G05D1/10
CPCG01C21/20G05D1/101Y02T10/40
Inventor 罗金亮欧宗伟任义冬赵铭杨健
Owner NAT UNIV OF DEFENSE TECH