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A Distributed Cooperative Guidance Method with Collision Angle Control

A distributed, collision angle technology, applied in directional control systems, offensive equipment, weapon accessories, etc., can solve the problems of enhanced missile damage, inability to control collision angle, etc., achieve a simple normal acceleration structure, and achieve a wide range of The effect of the collision angle control

Active Publication Date: 2022-05-24
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Realizing the control of terminal collision angle is of great significance to enhance the purpose of missile damage, but the above two methods cannot realize the control of collision angle

Method used

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  • A Distributed Cooperative Guidance Method with Collision Angle Control
  • A Distributed Cooperative Guidance Method with Collision Angle Control
  • A Distributed Cooperative Guidance Method with Collision Angle Control

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Experimental program
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Embodiment 1

[0083] Using a distributed cooperative guidance method with collision angle control proposed by the present invention, a cooperative guidance simulation experiment is designed. The simulation initial conditions are set as described in Table 1. The control parameters are designed to be N i =3,k 1i =k 2i =1,k 3i =424,K i = 0.9. The parameters related to the communication topology are set as: a 12 =a 21 =1,a 13 =a 31 =0,a 14 =a 41 =1,a 23 =a 32 =a 24 =a 42 =0,a 43 =a 34 =1. Target position: (0,0)m.

[0084] Table 1

[0085]

[0086] figure 2 It is the flight trajectory diagram of the missile during the simulation process. from figure 2 It can be seen that all missiles successfully hit their targets.

[0087] image 3 It is the line of sight angle trajectory diagram during the simulation process. from image 3 It can be seen that each missile can eventually obtain the desired line-of-sight angle.

[0088] Figure 4 It is the normal acceleration map ...

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Abstract

The invention discloses a distributed cooperative guidance method with collision angle control. The method is as follows: first establish the relative kinematics model of the projectile and target; then estimate the remaining flight time; then obtain the remaining flight time of other missiles through the communication link, and calculate the relative synchronization error; then calculate the time-varying navigation ratio value; calculate the normal acceleration command; Calculate the tangential acceleration command; finally input the guidance command to the actuator to control the flight of the missile; repeat the remaining flight time estimation and guidance synchronization control until the guidance ends. The invention is based on a distributed architecture, can realize a wide range of collision angle control, has a simple structure, and is convenient for practical application.

Description

technical field [0001] The invention relates to the technical field of missile guidance, in particular to a distributed cooperative guidance method with collision angle control. Background technique [0002] With the development of missile defense technology, it is difficult to achieve high-efficiency attack by taking hitting the target as the main goal and requirement of the guidance method. Multi-target, especially the guidance method to achieve terminal collision angle control is becoming an important research topic. Kim B et al. (Kim BS, Lee JG, Han HS (1998) Biased PNG law forimpact with angular constraint. IEEE Transactions on Aerospace and Electronic Systems 34(1):277-288), Introducing a Time-Variant Term into Standard Proportional Navigation (PNG), the proposed guidance law i.e. bias PNG can achieve the desired collision angle while hitting the target. Kim CY et al. (Kim CY, Ra WS, Whang IH (2017) Time-to-go rational function biased PN guidance law for precise impa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41G7/22
CPCF41G7/2226F41G7/2246
Inventor 易文俊张文广
Owner NANJING UNIV OF SCI & TECH