A formation control method for hypersonic vehicles
A control method and hypersonic technology, applied in vehicle position/route/altitude control, control/regulation system, non-electric variable control and other directions, can solve problems such as poor effect, achieve good effect and meet the effect of distance constraints
Active Publication Date: 2021-06-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
For example, by establishing a linearized mathematical model of unmanned aerial vehicle formation flight, the PID control method is used to design controllers for speed, heading and altitude respectively, and the three-dimensional formation formation can be maintained and transformed by controlling the formation spacing; but the applicable objects of the above method Both are unmanned aerial vehicles or subsonic aircraft with constant or controllable speed, and the effect is poor for hypersonic re-entry glide aircraft whose speed is uncontrollable
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Embodiment 2
[0137] The following is a simulation verification of the above hypersonic vehicle formation flight method.
[0138] Firstly, the performance analysis of the speed and direction consistent formation algorithm is carried out:
[0139] Assuming that three identical missiles fly together (i=1,2,3), their initial height Initialising speed initial ballistic inclination initial angle of attack Set the origin of the coordinate system described by formula (16) to formula (18) at the initial position of missile 1, and the initial trajectory deflection angle of the three missiles coincides with the initial lateral line-of-sight angle. The desired formation is an equilateral triangle formation with a side length of 12km, namely
[0140]
[0141] In order to make the three missiles fly according to the expected formation, the initial launch position constitutes an equilateral triangle with a side length of 12 km, and the initial launch position and target position of each missil...
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The invention provides a hypersonic aircraft formation control method, which divides the flight process of the aircraft into a climbing section, a fixed angle of attack gliding section, and a speed direction coordination section, controls the time point of entering the speed direction coordination section, and then adopts Multi-aircraft speed and direction consistency strategy, that is, each aircraft flies in formation according to the commanded angle of attack and commanded roll angle, so that the difference between the flight speed and direction of each aircraft is less than the preset threshold, so that it flies according to the preset formation , to realize the formation; it can be seen that the present invention can effectively realize the formation flight of the hypersonic reentry glide vehicle, and the formation flight effect is good, and the distance constraint between the aircraft can be satisfied.
Description
technical field [0001] The invention belongs to the technical field of aircraft flight strategies, and in particular relates to a hypersonic aircraft formation control method. Background technique [0002] At present, for the formation control of UAVs, there are mainly formation methods based on the leader-slave mode and formation methods based on the distributed communication mode. For example, by establishing a linearized mathematical model of unmanned aerial vehicle formation flight, the PID control method is used to design controllers for speed, heading and altitude respectively, and the three-dimensional formation formation can be maintained and transformed by controlling the formation spacing; but the applicable objects of the above method All of them are unmanned aerial vehicles or subsonic vehicles with constant or controllable speeds. For hypersonic reentry gliding vehicles with uncontrollable speeds, the effect is poor. Contents of the invention [0003] In orde...
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IPC IPC(8): G05D1/10
CPCG05D1/104
Inventor 王晓芳水晓冰林平李文
Owner BEIJING INSTITUTE OF TECHNOLOGYGY