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System for rebuilding spectrum of high spectrum intervention data and method thereof

A spectral reconstruction and hyperspectral technology, which is applied in the system field of spectral reconstruction of hyperspectral interference data, and can solve problems such as spectral reconstruction of hyperspectral interference data

Active Publication Date: 2009-12-09
CHINA CENT FOR RESOURCES SATELLITE DATA & APPL
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Problems solved by technology

At present, there is no direct reference method for spectral reconstruction of hyperspectral interference data in China, which requires independent research and development.

Method used

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  • System for rebuilding spectrum of high spectrum intervention data and method thereof
  • System for rebuilding spectrum of high spectrum intervention data and method thereof
  • System for rebuilding spectrum of high spectrum intervention data and method thereof

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Embodiment Construction

[0076] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 .

[0077] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments in order to better illustrate the features and functions of the present invention and make the present invention easier to understand, rather than to limit the protection scope of the present invention.

[0078] The technical solution of the invention includes a system and method for restoring imaging data of a hyperspectral interferometer.

[0079] The hyperspectral interferometer imaging data restoration system mainly includes a relative radiation correction unit, an interference data denoising unit, an apodization processing unit, a phase correction unit, a spectrum restoration unit and a spectrum inspection unit.

[0080] 1) Relative radiation correction unit

[0081] Under the condition of certain irradiance, the r...

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Abstract

The invention relates to a system for rebuilding spectrum of high spectrum intervention data and a method thereof. Based on the interference imaging mechanism of an HJ-1A high spectrum camera, the system adopts a particular data processing method to rebuild intervention data into spectrum data, which solves the practical engineering problems in processing ground system building data. The system comprises a relative radiation correction unit, an interference data de-noising unit, an apodization processing unit, a spectrum recovering unit and a spectrum checking unit; wherein, the spectrum recovering unit converts an interference data cube into a spectrum image data cube by the symmetrization processing of interference data; the spectrum checking unit carries out wavelength positioning to a real object spectrum image cube by checking the position of the characteristic spectral line of an imaging spectrometer. The technical scheme of the invention fills the blank of data processing of satellite-bone interference imaging spectrometers in China, and satisfies user demand for the data of satellite-bone interference imaging spectrometers.

Description

technical field [0001] The invention belongs to the field of satellite remote sensing image processing and analysis, in particular to a system and method for performing spectral reconstruction on hyperspectral interference data. Background technique [0002] On September 6, 2008, the Taiyuan Satellite Launch Center, the HJ-1-A / B star was successfully launched by the Long March 2C carrier rocket. The interferometric imaging spectrometer it carries is an aerospace sensor developed by my country. This imaging method is currently used for the first time in China for satellite remote sensing of the earth. It is different from ordinary optical cameras. The data obtained on the receiving surface of the sensor is interference data, which needs to go through a series of complicated processing processes before it can be reconstructed into a spectral image. According to the particularity of its imaging mechanism, in the process of spectral reconstruction of hyperspectral interference d...

Claims

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Application Information

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IPC IPC(8): G01S17/89G01S7/48
Inventor 郭建宁闵祥军康倩赵祥林军
Owner CHINA CENT FOR RESOURCES SATELLITE DATA & APPL
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