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Method and device for rendezvous and docking of space non-cooperative targets

A non-cooperative target, rendezvous and docking technology, applied in the direction of integrated navigator, three-dimensional position/course control, etc.

Active Publication Date: 2018-09-11
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method and device for rendezvous and docking of non-cooperative objects in space, so as to solve the problem in the prior art that non-cooperative objects in space are not equipped with characteristic structures such as targets and reflectors, and cannot complete the rendezvous and docking with non-cooperative objects in space. Communication, the problem of not being able to accurately complete accurate and effective rendezvous and docking with non-cooperative targets

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] The embodiment of the present invention can be used for rendezvous and docking of non-cooperative targets to fill the problem in the prior art that rendezvous and docking of non-cooperative targets in space cannot be realized, and specifically includes the following steps: providing the position of non-cooperative targets in space through ground guidance Information, combined with the absolute GPS information of the tracking spacecraft, controls the capture range of the wide field of view measurement camera of the tracking spacecraft to include the space non-cooperative target; according to t...

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Abstract

The invention relates to the aerospace field, and provides a rendezvous docking method and device of a space non-cooperative target. The method comprises the steps of guiding the space non-cooperative target to a system capture range through ground guideness; determining measurement angle of sight, relative distance and azimuthal angle respectively according to the simplest combination of measurement components capable of determining relative parameters of the space non-cooperative target; carrying out relative navigation by using an extended Kalman filter algorithm, according to the capture measurement results; tracking track the target by executing CW reference trajectory guidance and linear reference trajectory guidance respectively to according to navigation results and giving out a relative position and relative speed equation of an ideal trajectory; and carrying out thrust control by adopting a PID control law and a pseudo rate pulse modulator during an approaching process. Through capturing, tracking and approaching of the space non-cooperative target, autonomous capturing, continuous tracking and stable approaching of the space non-cooperative target can be finished after a spacecraft enters a work range of capturing the non-cooperative target, thereby realizing rendezvous docking of the space non-cooperative target.

Description

technical field [0001] The invention belongs to the field of aerospace and aviation, and in particular relates to a rendezvous and docking method and device for space non-cooperative targets. Background technique [0002] With the development of aerospace technology, space on-orbit service has become an important trend in space exploration missions due to the requirements of spacecraft maintenance, renewal, and assembly, and the demand for rendezvous and docking of space targets, especially space non-cooperative targets, is also increasing. more and more urgent. [0003] Most of the current rendezvous and docking experiments are aimed at space cooperation spacecraft. Among them, cooperative spacecraft usually include the following features or structures: laser reflectors, radio frequency transmitters for ranging and communication transmission, easily distinguishable visible or reflective apparent features, capture fixtures, and appropriate attitude control systems . Other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/24
CPCG01C21/24G05D1/10
Inventor 梁斌李成王学谦刘厚德张博
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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