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Satellite flying-around formation configuration initialization method under engineering constraint condition

An initialization method and a technology of formation configuration, which are applied in the direction of aircraft, aerospace aircraft, and aerospace vehicle guidance devices, etc., which can solve the problem of insufficient modeling of design constraints, lack of consideration of inter-satellite safety constraints, and simple constraints, etc. problems, to achieve the effect of saving fuel consumption, strong engineering achievability, and simple constraints

Active Publication Date: 2018-08-24
SHANGHAI AEROSPACE CONTROL TECH INST
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AI Technical Summary

Problems solved by technology

In terms of implementation, the existing related research results often have shortcomings such as too complex algorithms, too simple constraints, insufficient modeling of scheme (method) design constraints, and lack of consideration of inter-satellite security constraints.

Method used

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  • Satellite flying-around formation configuration initialization method under engineering constraint condition
  • Satellite flying-around formation configuration initialization method under engineering constraint condition
  • Satellite flying-around formation configuration initialization method under engineering constraint condition

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Embodiment Construction

[0030] Such as figure 2 Shown, the inventive method is as follows:

[0031] Step 1: In the remote guidance stage, when the inter-satellite distance is greater than the operational distance of the inter-satellite link, a set of optimal dual-pulse control with an in-plane interval of 180° is performed on the auxiliary satellites of the formation, and the control amount is differentiated using the absolute orbit information of the two satellites Acquisition is carried out, and calculation is carried out according to formula (2), so that only the relative semi-major axis between the stars is changed, and the others are kept unchanged. Due to the deviation of the semi-major axis between the stars, the auxiliary star of the formation will gradually approach the main star of the formation under the condition of natural perturbation.

[0032] Step 2 is the short-range guidance stage, that is, as the formation auxiliary stars gradually approach the formation main star, the inter-sate...

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Abstract

The invention provides a satellite flying-around formation configuration initialization method under an engineering constraint condition. The satellite flying-around formation configuration initialization method under the engineering constraint condition comprises the steps that (1) formation concomitant satellites are made to gradually approach a formation primary satellite by using natural perturbation; (2) when the situation that an inter-satellite distance is less than the acting distance of an inter-satellite link occurs, a satellite-borne carrier differential GNSS receiver can output measuring data and output a navigation result to carry out in-plane control on the formation concomitant satellites; (3) when the inter-satellite distances are completely less than the acting distances of the inter-satellite links, out-of-plane control is carried out in a prioritized manner; (4) the in-plane control is carried out according to a relative navigation result to further reduce inter-satellite semi-major axis deviation so as to preliminarily form a flying-around formation configuration; and (5) when the inter-satellite distances are less than a threshold, in-plane and out-of-plane parameter combined control is carried out according to the relative navigation result to correct the formation configuration so that the inter-satellite semi-major axis deviation and inter-satellite distance tangential deviation are eliminated to form the final target flying-around formation configuration.

Description

technical field [0001] The invention relates to a configuration initialization method for a satellite orbiting formation under engineering constraint conditions, and belongs to the technical field of satellite orbit control. Background technique [0002] Formation flight of spacecraft is a new space operation mode of spacecraft that emerged with the development of micro-satellites in the late 1980s. Compared with a single large spacecraft, satellite formation flight has very prominent advantages in some aspects. Since the concept was born, it has been favored by all aerospace powers in the world. Many formation flight research programs have emerged, and it has become a major research hotspot in the aerospace field. Although the formation flight technology shows attractive application prospects, at present, there are few research projects that can be successfully realized. The important reason is that the complex engineering constraints make it difficult to realize. At prese...

Claims

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Application Information

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IPC IPC(8): B64G1/24
CPCB64G1/242
Inventor 王文妍何煜斌完备朱郁斐刘美师杜耀珂陈桦王嘉轶王禹贾艳胜崔佳吴敬玉
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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