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A quality identification method for non-cooperative targets based on space tether capture system

A non-cooperative target capture system technology, applied in the field of non-cooperative target quality identification based on space tether capture system

Active Publication Date: 2017-07-11
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

The second reason is that whether it is target recovery or towing orbit change, it is necessary to control the stable recovery / towing through the tether

Method used

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  • A quality identification method for non-cooperative targets based on space tether capture system
  • A quality identification method for non-cooperative targets based on space tether capture system
  • A quality identification method for non-cooperative targets based on space tether capture system

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Embodiment Construction

[0081] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0082] see figure 1 , the present invention mainly comprises the following steps:

[0083] Step 1: Determine the speed, position, and orbit parameters of the space tether capture system before capture and the speed, position, and orbit parameters of the target to be captured, the length of the tether at the moment of capture, and the in-plane and out-of-plane swing of the tether angular angle, angular velocity;

[0084] The second step: according to the kinetic equations (19), (20) and (21) after the capture, analyze the in-plane swing angle motion and the out-of-plane swing angle motion of the tether after capture;

[0085] Step 3: If figure 2 As shown, in the process of parameter identification, the simulation needs to be divided into two parts, one part simulates the real compound movement after capture and provides corresponding sensor information, and the oth...

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Abstract

The invention discloses a space tethered capturing system based non-cooperative target quality identification method. After a space tethered robot system captures a space non-cooperative target, a target kinetic parameter is identified in the later capture stage and a recovery stage and then self-adaptive recovery control is completed based on the identification result. The space tethered capturing system based non-cooperative target quality identification method includes firstly, providing a parameter identification method to identify quality of the space non-cooperative target primarily in the later capture stage; secondly, providing an optimal control algorithm according to influences of different recovery control algorithms to parameter identification; and thirdly, completing self-adaptive control in space non-cooperative target recovery process on the basis of the primary parameter identification result in the later capture stage.

Description

technical field [0001] The invention belongs to the technical field of spacecraft control, and relates to dynamic analysis and target parameter identification technology after all kinds of space capture systems with space tethers capture space non-cooperative targets, in particular to a capture system based on space tethers Non-cooperative target quality identification method. Background technique [0002] The space tether system is a new type of space robot system that can be used for space on-orbit services. It has potential application value in the fields of space on-orbit maintenance, on-orbit capture, and on-orbit assembly. The architecture is "Space Maneuvering Platform, Space Tether, Manipulator Robot"; after successful capture of Space Non-Cooperative Target / Space Junk, the new complex is "Space Maneuvering Platform, Space Tether, Space Non-Cooperative Target"; for further completion Subsequent tasks such as dragging orbit change / recovery need to know the dynamic pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00G05B13/04B64G1/24
Inventor 黄攀峰张帆刘正雄孟中杰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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