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The method of interception in multi-star cooperative game

A cooperative game, inter-satellite technology

Active Publication Date: 2021-05-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to propose an interception method of multi-star cooperative game in order to solve the problem that the existing single-star interception time is too long and the maneuverability of the target star is not considered.

Method used

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  • The method of interception in multi-star cooperative game
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  • The method of interception in multi-star cooperative game

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specific Embodiment approach 1

[0023] Specific implementation mode one: the specific process of the interception method of the multi-star cooperative game in this implementation mode is:

[0024] The invention proposes a multi-satellite cooperative game interception method, regards the interceptor star and the target star as the two sides of the game, and designs the strategy of each interceptor star under the condition of fully considering the strategy of the target star, so as to realize the rapid interception of the target star. The specific implementation is as follows:

[0025] Step 1. Obtain the situation information of the intercepting star and the target star through the sensor, and calculate the zero-control miss amount between the interceptor star and the target star and the zero-control miss amount between the interceptor stars based on the situation information;

[0026] The situation information includes the position and velocity information of the intercepting star and the target star in the o...

specific Embodiment approach 2

[0032] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in the step 1, the situation information of the intercepting star and the target star is obtained through the sensor, and the zero-control miss amount and interception of the intercepting star and the target star are calculated based on the situation information Zero-control misses between stars;

[0033] The situation information includes the position and velocity information of the intercepting star and the target star in the orbital coordinate system;

[0034] The specific process is:

[0035] Establish a reference satellite running in a circular orbit at the initial position of the interceptor star, and the orbit of the reference satellite is figure 1 In the curve, the position vector radius between the intercepting star P and the center of the earth is r 2 , the position vector of the reference satellite and the center of the earth is r 1 , the relative position vecto...

specific Embodiment approach 3

[0044] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the state transition matrix of the satellite

[0045] Φ 11 、Φ 12 、Φ 21 、Φ 22 is an intermediate variable;

[0046]

[0047]

[0048] Among them, ω is the orbital angular velocity of the reference satellite, τ is the difference between the interception end time and the current time, τ=t f -t, t is the interception current time, t f is the interception end time.

[0049] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

An interception method for a multi-star cooperative game, the invention relates to a multi-star cooperative interception method. The purpose of the present invention is to solve the problem that the existing single-star interception time is too long and the maneuverability of the target star is not considered. 1. Obtain the situation information of the intercepting star and the target star through the sensor, and calculate the zero-control miss amount between the interceptor star and the target star and the zero-control miss amount between the interceptor stars based on the situation information; 2. Design the game index function so that the interceptor star will Intercept the target star under mutual collision; 3. Solve the game strategy between the interceptor star and the target star; 4. Solve the optimal interception end time under different interception situations, calculate the optimal zero-control miss amount, and obtain the optimal game strategy between the interceptor star and the target star 5. Control the flight trajectory of each intercepting star according to the optimal intercepting star game strategy, and approach the target star to achieve interception. The invention is used in the field of multi-satellite cooperative interception.

Description

technical field [0001] The invention relates to a multi-satellite cooperative interception method. Background technique [0002] As an important part of the space information network, satellites have the advantages of long communication distance and no terrain restrictions in terms of information exchange. In order to seize the superiority of space information, satellite interception is a necessary means for future space checks and balances. With the development of satellite intelligence, the target star can perceive the space situation, obtain the corresponding space information, and make decisions to deal with the battlefield situation, which puts forward higher requirements for the interceptor star. [0003] Because the target star has the ability of space perception, independent decision-making and maneuvering ability, it can obtain the situation information during the approaching process of the intercepting star, and adopt the optimal strategy to avoid it. However, in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/24B64G1/10
CPCB64G1/10B64G1/242
Inventor 叶东王淳宝孙兆伟孙楚琦
Owner HARBIN INST OF TECH
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