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Distributed cooperative guidance method for control of collision angle

A distributed, collision angle technology, applied in the direction control system, offensive equipment, weapon accessories, etc., can solve the problems of enhancing missile damage and not being able to control the collision angle, achieve a simple normal acceleration structure, and realize a wide range of The effect of collision angle control

Active Publication Date: 2020-12-15
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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  • Distributed cooperative guidance method for control of collision angle
  • Distributed cooperative guidance method for control of collision angle
  • Distributed cooperative guidance method for control of collision angle

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] A distributed cooperative guidance method with collision angle control proposed by the present invention is used to design a cooperative guidance simulation experiment. The initial conditions of the simulation are set as described in Table 1. The control parameters are designed as N i =3,k 1i =k 2i = 1,k 3i =424,K i = 0.9. Communication topology related parameters 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 trajectory diagram of the missile during the simulation process. From figure 2 It can be seen that all missiles can successfully hit the target.

[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 finally obtain the desired line-of-sight angle.

[0088] Figure 4 is the normal acceleration map during the simula...

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Abstract

The invention discloses a distributed cooperative guidance method for control of a collision angle. The method comprises the following steps that 1, a missile-target relative kinematics model is established; 2, the remaining flight time is estimated; 3, the remaining flight time of other missiles is acquired through a communication chain, and a relative synchronization error is calculated; 4, a time-varying navigation proportion value is calculated; 5, a normal acceleration instruction is calculated; 6, a tangent acceleration instruction is calculated; 7, a guidance instruction is inputted into an actuator to control the missiles to fly. and 8, the remaining flight time estimation and the guidance synchronization control are repeated until the guidance is finished. According to the method,on the basis of a distributed architecture, the large-range collision angle control can be achieved, the structure is simple, and practical application is facilitated.

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, hitting the target as the main goal and requirement of the guidance method has made it difficult to achieve high-efficiency attacks. 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-varying term to standard scale navigation (PNG), the proposed guidance law, biased PNG, can achieve the desired impact 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 impactangle. In proc...

Claims

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Application Information

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