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Non-uniform space-time analysis method and system for surface variables

A non-uniformity, spatiotemporal analysis technology, applied in the field of remote sensing, can solve problems such as insufficient science, weak analysis between multiple laws, and inapplicability of correlation analysis.

Pending Publication Date: 2020-10-23
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

If only simple statistical analysis is used, the degree of correlation between the various factors obtained is the same, which is not scientific enough
Therefore, ordinary correlation analysis is not suitable for complex land surface processes, and the main purpose of time series modeling analysis is to predict the law, and it is mainly aimed at the analysis of a law itself, and the analysis between multiple laws is relatively weak

Method used

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  • Non-uniform space-time analysis method and system for surface variables
  • Non-uniform space-time analysis method and system for surface variables
  • Non-uniform space-time analysis method and system for surface variables

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Embodiment Construction

[0039] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0040] figure 2 It is a flow chart of a method for non-uniformity spatiotemporal analysis of surface variables provided by an embodiment of the present invention, such figure 2 Shown, including:

[0041] S1, obtain the variable data of the surface to be analyzed;

[0042] Wherein, the surface variable data to be analyzed includes remot...

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Abstract

The embodiment of the invention provides a non-uniform space-time analysis method and system for surface variables. The method comprises the steps of obtaining to-be-analyzed surface variable data; carrying out non-uniform space analysis based on information entropy on the to-be-analyzed surface variable data to obtain a non-uniform space quantitative analysis result; and performing non-uniformitytime analysis based on grey relational degree on the to-be-analyzed surface variable data to obtain a non-uniformity time quantitative analysis result. According to the non-uniformity space-time analysis method for the surface variables, the spatial analysis method uses the information entropy as an index for quantitatively describing the non-uniformity of the surface variables, dimensions can beunified, and the invention is suitable for remote sensing observation and also suitable for observation of ground experiments; according to the time analysis method, a grey correlation analysis method is used for time change analysis of non-uniformity among different variables.

Description

Technical field [0001] The present invention relates to the field of remote sensing technology, in particular to a method and system for non-uniformity time-space analysis of surface variables. Background technique [0002] In ground surface analysis, non-uniformity, that is, spatial variability, is the inherent nature of the earth's surface geometry, physical processes and their variables. The multi-temporal and spatial resolution characteristics of satellite data make the observation result of a high-resolution remote sensing sensor a concave and convex surface formed by the gray value of the pixel; however, for a low-resolution remote sensing sensor, the observation result is a flat surface. , Has a serious smoothing effect, such as figure 1 Shown. The non-uniformity of the surface variable space can be regarded as an uneven surface. From a mathematical point of view, the uneven surface of the sensor is essentially a collection of discrete points, so the non-uniformity of a s...

Claims

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Application Information

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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 辛晓洲彭志晴柳钦火
Owner AEROSPACE INFORMATION RES INST CAS
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