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Trajectory planning method and system for hypersonic vehicle re-entry glide segment

A hypersonic and trajectory planning technology, which is applied in control/regulation systems, instruments, vehicle position/route/altitude control, etc., can solve the problems of high complexity of trajectory planning methods and high requirements for real-time computing capabilities, and meet the needs of online real-time computing , fast operation speed and simple algorithm structure

Active Publication Date: 2021-03-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a hypersonic vehicle re-entry glide segment trajectory planning method and system to alleviate the technical problems of high complexity of trajectory planning methods and high requirements for real-time computing capabilities in the prior art

Method used

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  • Trajectory planning method and system for hypersonic vehicle re-entry glide segment
  • Trajectory planning method and system for hypersonic vehicle re-entry glide segment
  • Trajectory planning method and system for hypersonic vehicle re-entry glide segment

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Embodiment 1

[0025] figure 1 It is a flow chart of a trajectory planning method for a re-entry glide segment of a hypersonic vehicle according to an embodiment of the present invention, and the method is applied to a hypersonic vehicle in the glide segment. Such as figure 1 As shown, the method specifically includes the following steps:

[0026] Step S102, establishing a target coordinate system where the hypersonic vehicle is located; the target coordinate system includes: a velocity coordinate system, a track coordinate system and a body coordinate system.

[0027] Step S104, based on the target coordinate system, a kinematics model and a dynamics model of the hypersonic vehicle are established.

[0028] Step S106, based on the kinematics model and the dynamics model, the artificial potential field and the re-entry corridor of the gliding section where the hypersonic vehicle is located are constructed; the artificial potential field includes: an attractive potential field and a repulsi...

Embodiment 2

[0071] image 3 It is a schematic diagram of a hypersonic vehicle re-entry glide segment trajectory planning system provided according to an embodiment of the present invention, and the system is applied to a hypersonic vehicle in the glide segment. Such as image 3 As shown, the system includes: a coordinate system establishment module 10 , a model establishment module 20 , an artificial potential field construction module 30 and a trajectory planning module 40 .

[0072] Specifically, the coordinate system establishing module 10 is configured to establish a target coordinate system where the hypersonic vehicle is located; the target coordinate system includes: a velocity coordinate system, a track coordinate system and an airframe coordinate system.

[0073] The model establishment module 20 is used to establish a kinematics model and a dynamics model of the hypersonic vehicle based on the target coordinate system.

[0074] The artificial potential field construction modul...

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Abstract

The present invention provides a trajectory planning method and system for the re-entry gliding section of a hypersonic vehicle, which is applied to a hypersonic vehicle in the gliding section, including: establishing a target coordinate system where the hypersonic vehicle is located; the target coordinate system includes: a velocity coordinate system, Track coordinate system and body coordinate system; based on the target coordinate system, establish the kinematics model and dynamics model of the hypersonic vehicle; based on the kinematics model and dynamics model, construct the artificial potential field and reentry of the gliding section of the hypersonic vehicle The corridor; the artificial potential field includes: the gravitational potential field and the repulsive potential field; the virtual force on the hypersonic vehicle is calculated based on the artificial potential field, and the gliding trajectory of the hypersonic vehicle is determined based on the virtual force and the re-entry corridor. The invention alleviates the technical problems of the high complexity of the trajectory planning method and the high requirement for real-time computing capability existing in the prior art.

Description

technical field [0001] The invention relates to the technical field of aircraft intelligent mission planning, in particular to a trajectory planning method and system for a hypersonic aircraft re-entry glide segment. Background technique [0002] A hypersonic vehicle has to go through five stages from launch to return to the ground, including: boost stage, inertia stage, re-entry pull-up stage, glide stage and press-down attack stage. Among them, the gliding stage refers to the stage when the hypersonic vehicle is stably flying in the adjacent space. This airspace includes the area from 100 kilometers away from the earth's surface to 20 kilometers above the earth's surface. It has to go through hypersonic and supersonic flight stages, and the external environmental conditions change drastically. , seriously affecting the aerodynamic characteristics of the aircraft. In order to ensure the safe and reliable flight of hypersonic vehicles in the gliding segment, many institutio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/10
CPCG05D1/107
Inventor 宋佳孙明明赵凯
Owner BEIHANG UNIV