Spectral data construction method of space body
A technology of spectral data and construction method, applied in image data processing, structured data retrieval, electrical digital data processing, etc., to achieve the effect of improving processing capacity and efficient processing
Active Publication Date: 2016-04-06
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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Problems solved by technology
[0006] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a spatial volume spectral data construction method to solve the efficiency problem in the application of massive spectral data
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Embodiment Construction
[0026] A method for constructing spectral data of a spatial volume includes the following steps:
[0027] Step 1: Build a three-dimensional global data grid:
[0028] 1) The three-dimensional three-dimensional earth is flattened and expanded to form a rectangular map, which is centered at the intersection of 0 degree latitude (equator) and 0 degree longitude;
[0029] 2) Taking 500,000 kilometers above the plane as the boundary and the center of the earth as the boundary (that is, the radius of the earth below), expand the rectangular map into a cuboid, such as figure 1 Shown
[0030] 3) Divide into 8 cubes of the same size according to the octree method (that is, each time the solid is divided, using the front, top, and side three different directions to center the center), such as figure 2 Shown
[0031] 4) Iteratively subdivide each cube according to the above method, so that the smallest grid size is cm level, a total of 32 levels;
[0032] 5) At this time, the space in which the e...
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The invention discloses a spectral data construction method of a space body. The spectral data construction method comprises the following steps: constructing a three-dimensional global data network; carrying out discretization on spectral data to form a vector data containing multidimensional electromagnetic spectrum information; and globally encoding the data network to form a 192-bit binary encoding system. Compared with the prior art, the spectral data construction method disclosed by the invention has the beneficial effects that: a spatial data organization system conforming to spectral data characteristics can be formed, and quick conversion with a common longitude and latitude coordinate system can be completed; geographic data, meteorological data, military data and other spatial data information can be compromised to realize standard fusion in the space body; a complete electromagnetic sampling and reconstruction method is formed according to the characteristics of the spectral data, and discretization processing of the spectral data with different scale requirements can be realized; and the binary encoding system is established to correspond to each data network, so the data network can carry out parallel and efficient processing in a computer, and then the processing ability of the spectral data is improved.
Description
Technical field [0001] The invention belongs to the field of information technology, and specifically relates to a method for constructing spectrum data of a spatial volume. Background technique [0002] With the continuous development of information technology, various data systems based on geographic space have been continuously established, and they have been widely used in various fields such as surveying and mapping, geology, meteorology, hydrology, transportation, population, resources, and military. These applications have their own data grid. The so-called data grid is to logically or physically divide the aerospace environment where the information exists, forming a grid that is interconnected and well-defined, which can easily form a better location association with other aerospace data. [0003] The electromagnetic spectrum widely exists in the aerospace environment in the form of electromagnetic waves. The basis of its analysis is discretization, that is, the continuou...
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IPC IPC(8): G06F17/30G06T17/00G06T17/05
CPCG06F16/29G06T17/005G06T17/05
Inventor 刘堃乔小斐
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP