An Attitude Planning Method for Establishing Laser Links After Spacecraft Entering Orbit

A spacecraft and link technology, applied in the aerospace field, can solve problems such as the reduction of information transmission efficiency of laser communication links and the inability of laser transmitters to accurately point, and achieve the effects of precise construction, increased stability, and improved pointing accuracy.

Active Publication Date: 2022-07-12
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an attitude planning method for mutual establishment of laser links after spacecraft enter orbit, to solve the problem that laser transmitters cannot be accurately pointed due to navigation errors, which in turn leads to reduced information transmission efficiency of laser communication links question

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  • An Attitude Planning Method for Establishing Laser Links After Spacecraft Entering Orbit
  • An Attitude Planning Method for Establishing Laser Links After Spacecraft Entering Orbit
  • An Attitude Planning Method for Establishing Laser Links After Spacecraft Entering Orbit

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Embodiment 1

[0065] In this embodiment, three spacecraft are provided, namely the first spacecraft 1, the second spacecraft 2, and the third spacecraft 3, as shown in figure 2 As shown, two laser transmitters are connected to each spacecraft, that is, the two laser transmitters of the first spacecraft 1 are the first laser transmitter A4 and the first laser transmitter B5, and the two laser transmitters of the first spacecraft 1 are the first laser transmitter A4 and the first laser transmitter B5. The laser receivers are the first laser receiver A10 and the first laser receiver B11, the two laser transmitters of the second spacecraft 2 are the second laser transmitter A6 and the second laser transmitter B7, and the second spacecraft 2 The two laser receivers are the second laser receiver A12 and the second laser receiver B13, the two laser transmitters of the third spacecraft 3 are the third laser transmitter A8 and the third laser transmitter B9, the third aerospace The two laser receiv...

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Abstract

The invention discloses an attitude planning method for establishing a laser link with each other after the spacecraft enters orbit. The method includes at least two spacecraft. The method for establishing a laser link between the two spacecraft includes the following steps: Step S1: determining a second spacecraft All possible positions of the spacecraft, that is, the uncertain area, and calculate the half cone angle of the uncertain area. The first spacecraft performs a square helical motion, and the second spacecraft emits the first laser to the first spacecraft. The laser beam of the laser transmitter A is captured, and the target attitude angle of the second spacecraft is adjusted so that the emission beam of the second laser transmitter A coincides with the connection line between the first spacecraft and the second spacecraft; the invention determines the spacecraft The calculation method of the target attitude angle and the included angle of the laser transmitter is presented, and the planning method of the spacecraft target attitude angle and the included angle of the laser transmitter is given, which can significantly improve the pointing accuracy of the spacecraft laser transmitter.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to an attitude planning method for mutually establishing laser links after spacecraft enter orbit. Background technique [0002] In the space Samsung system, after three spacecraft are in orbit, each spacecraft in the Samsung formation needs to communicate with the other two spacecraft. In order to realize the large-capacity, high-speed, and high-concealment transmission of information between spacecraft, a laser link can be established between satellite formations, and the precise formation of the three spacecraft and the precise pointing of the laser transmitter are the basis for establishing a laser link. and guarantee. [0003] Due to the influence of factors such as the long distance between spacecraft and various perturbation forces in the space environment, the acquisition of laser signals between spacecraft and the attitude planning based on the captured sign...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/24
CPCB64G1/244B64G1/245
Inventor 张夷斋李涛
Owner NORTHWESTERN POLYTECHNICAL UNIV
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