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Method for scheduling target roll angle in constellation area based on greedy algorithm

A technology of regional target and greedy algorithm, which is applied in the field of satellite mission planning and scheduling, can solve the problems of increasing the time and workload of regional data information acquisition, leaving gaps in the coverage strip, coverage problems, etc., to solve the problem of ineffective coverage, The effect of shortening the elapsed time

Pending Publication Date: 2022-04-01
HAI YING GROUP OF AEROSPACE IND
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Problems solved by technology

[0002] Satellite monitoring is based on the development of aerospace technology. When scanning the existing area, it is easy to leave gaps between the coverage strips, which leads to problems in the overall coverage, and then requires multiple satellite rotations, and then the gaps Carry out another coverage scan, and this will greatly increase the time to acquire regional data information and the overall workload. Therefore, we propose a greedy algorithm-based constellation regional target roll angle scheduling method

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  • Method for scheduling target roll angle in constellation area based on greedy algorithm
  • Method for scheduling target roll angle in constellation area based on greedy algorithm
  • Method for scheduling target roll angle in constellation area based on greedy algorithm

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Embodiment

[0057] Based on the Walker Constellation:

[0058] see Figure 1-2 , the present invention provides a technical solution: a greedy algorithm-based method for scheduling target roll angles in constellation areas, comprising the following steps:

[0059] S1. Determine the constellation configuration;

[0060] S2, establishing a simplified satellite orbit extrapolation model;

[0061] S3, calculating the position of the sub-satellite point;

[0062] S4. Calculating satellite coverage strips;

[0063] S5, setting the target area and performing grid processing;

[0064] S6, adding constraints;

[0065] S7. Using a greedy algorithm to calculate the side swing angle of the load;

[0066] S8. Outputting a simulation result.

[0067] Specifically, the specific operation method in step S1 is:

[0068] Based on 8 orbital planes, each orbital plane has 8 satellites in the Walker constellation, the orbital height is 600km, the orbital inclination is 97.65°, the ascending node right...

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Abstract

The invention discloses a constellation area target roll angle scheduling method based on a greedy algorithm. The constellation area target roll angle scheduling method comprises the following steps: S1, determining a constellation configuration; s2, establishing a simplified satellite orbit extrapolation model; s3, calculating the position of a sub-satellite point; s4, calculating a satellite coverage strip; s5, setting a target area and carrying out gridding processing; s6, adding constraint conditions; s7, calculating a load side-sway angle by using a greedy algorithm; s8, outputting a simulation result; the satellite side-sway angle can be automatically adjusted according to a target area, the problem that a coverage strip gap cannot be effectively covered is solved, and the time for full coverage of the area is effectively shortened.

Description

technical field [0001] The invention relates to the technical field of satellite mission planning and scheduling, and specifically relates to a greedy algorithm-based method for scheduling target roll angles in constellation areas. Background technique [0002] Satellite monitoring is based on the development of aerospace technology. When scanning the existing area, it is easy to leave gaps between the coverage strips, which leads to problems in the overall coverage, and then requires multiple satellite rotations, and then the gaps Carry out coverage scanning again, and this will greatly increase the time to acquire regional data information and the overall workload. For this reason, we propose a constellation region target roll angle scheduling method based on greedy algorithm. Contents of the invention [0003] The purpose of the present invention is to provide a greedy algorithm-based method for scheduling target roll angles in the constellation area, so as to solve the...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/23G06F111/04
Inventor 孙景云柳震齐星
Owner HAI YING GROUP OF AEROSPACE IND