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An Adaptive Localization Method for Spacecraft Debris Collisions

A positioning method and self-adaptive technology, applied in the aerospace field, can solve the problem of undiscovered patent documents, etc., and achieve the effect of eliminating sudden interference, avoiding positioning errors, and strong adaptability

Active Publication Date: 2021-12-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Through the search of published patent documents, no published patent documents identical to this patent application have been found

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  • An Adaptive Localization Method for Spacecraft Debris Collisions
  • An Adaptive Localization Method for Spacecraft Debris Collisions
  • An Adaptive Localization Method for Spacecraft Debris Collisions

Examples

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Embodiment Construction

[0066] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0067] A positioning method for adaptive spacecraft debris collision, the innovation is that the steps of the method are:

[0068] 1) Set up a stiffened plate collision detection experimental system: the system includes a transmitter, a stiffened plate, a projectile, a sensor, an amplifier, an acoustic emission instrument, and a computer. The sensors are all connected to the acoustic emission instrument through an amplifier, and the acoustic emission instrument is connected to the computer; the transmitter emits a projectile, and the projectile hits the stiffened plate to generate a collision signal;

[0069] 2) Select collision points at a certain interval in the triangular area formed by the sensors in a triangular distribution for collisi...

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Abstract

The invention relates to a positioning method for self-adaptive collision of spacecraft fragments, characterized in that: the steps of the method are: 1 building a stiffened plate collision detection experimental system; 2) conducting collision positioning experiments; 3) adopting self-adaptive energy compensation Threshold filtering method for collision location; 4) Evaluate the location algorithm. The invention relates to science and rationality. For collision points at different positions, the threshold value is determined according to the energy characteristics of the signal, so as to realize self-adaptive positioning and avoid positioning errors caused by too large or too small selection of the threshold value. The method can detect and determine the position of the collision early, and avoid safety accidents caused by not finding the existence of the collision in time.

Description

technical field [0001] The invention belongs to the technical field of aerospace and relates to a positioning method for self-adaptive collision of spacecraft fragments. Background technique [0002] With the development of the space industry of various countries, the number of space debris is increasing day by day, and the safe operation of spacecraft in orbit is seriously threatened. Although honeycomb panels are provided on the outer surface of the airtight cabin of the manned spacecraft for protection, high-speed space debris will pass through the protective layer and hit the outer surface of the airtight cabin. In order to ensure the air pressure balance and operational safety of the spacecraft, it is particularly important to perceive and locate the debris at the first moment of collision. [0003] The collision signal exists in the form of Lamb waves in the plate. At present, the research on the propagation law of Lamb waves in the plate structure and the technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04G01M7/08G06F30/15
CPCG01N29/043G01M7/08G01N2291/023G01N2291/0289G01N2291/0422G01N2291/106
Inventor 李一博王晢芮小博綦磊刘嘉玮
Owner TIANJIN UNIV
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