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A spectral pattern recognition method for finely recognizing a spatial target

A space target and pattern recognition technology, applied in the field of spectral pattern recognition for finely identifying space targets, can solve problems such as indistinguishability, reduce fuzzy uncertainty and rough uncertainty, and improve the accuracy of pattern recognition.

Active Publication Date: 2019-05-31
BEIHANG UNIV
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a spectral pattern recognition method for finely identifying space targets, so as to solve the problem that the prior art is difficult to distinguish when the similarity of space targets is high, and has the advantages of Quick, high-accuracy questions

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  • A spectral pattern recognition method for finely recognizing a spatial target
  • A spectral pattern recognition method for finely recognizing a spatial target
  • A spectral pattern recognition method for finely recognizing a spatial target

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0047] Such as figure 1 Shown is the flow chart of the space target pattern recognition method provided by the present invention, mainly comprises the following steps:

[0048] Step 101, prepare experimental samples, prepare four cuboid samples representing space targets, the six surfaces of each sample are made of three kinds of aviation materials mixed in different proportions, and the three materials that make up the four samples are made of two samples One of the materials is the same.

[0049] Step 102, using a spectrometer to collect spectral data of the sample at different angles. The spectrometer model used is Hyperspc VNIR-N series, the wavelength range is 400-1000nm, the spectral resolution is 2-3nm, and the single-pixel disper...

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Abstract

The invention discloses a spectral pattern recognition method for finely recognizing a spatial target. The spectral pattern recognition method comprises the following steps: acquiring spectral data ofvarious spatial targets by adopting a spectrograph; Preprocessing the acquired spectral data to remove noise interference; Performing data feature extraction on the preprocessed data; performing Moderecognition on data obtained after feature extraction, wherin a modeling method is information entropy weight fuzzy rough neighbor (Entropy Weight Fuzzy-rough nearest Neighbour, referred to as EFRNN)method .According to the method, concepts of an information entropy weight and a fuzzy rough set are introduced; The information entropy weight considers all information of the sample and quantizes the information, and introduction of the fuzzy rough set can avoid fuzzy uncertainty caused by overlapping and uncertainty caused by insufficient characteristics to a certain extent, so that the pattern recognition precision of similar samples is improved. The method has the advantage that parameters do not need to be preset, and accurate distinguishing can be carried out under the condition that samples are similar.

Description

technical field [0001] The invention relates to the technical field of space target identification, in particular to a spectral pattern recognition method for finely identifying space targets. Background technique [0002] With the rapid development of aerospace technology, more and more aircraft are sent into space. The research on space targets, including satellites and space debris, has become an important task for all space powers. If space debris collides with an orbiting spacecraft, it will directly cause damage or disintegration of spacecraft components, posing a serious threat to the normal operation of the orbiting spacecraft. In addition, in the future high-tech warfare with information warfare as the core, spacecraft will play an increasingly important role. Various military aerospace systems, such as early warning satellites, communication satellites, reconnaissance satellites, imaging satellites, navigation and positioning satellites, ocean monitoring Satellite...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/66
Inventor 李庆波李文杰
Owner BEIHANG UNIV
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