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Radiation calibration method and device for satellite remote sensor

A technology of radiometric calibration and satellite remote sensing, which is applied in the field of satellite radiometric calibration to achieve good radiometric calibration and accurate radiometric calibration coefficients

Active Publication Date: 2017-06-30
NAT SATELLITE METEOROLOGICAL CENT
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  • Abstract
  • Description
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Problems solved by technology

However, in the prior art, there is no method of using the moon as a stable radiation calibration source to perform radiation calibration on the remote sensor

Method used

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  • Radiation calibration method and device for satellite remote sensor
  • Radiation calibration method and device for satellite remote sensor
  • Radiation calibration method and device for satellite remote sensor

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Embodiment Construction

[0060] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, so they are only examples, and should not be used to limit the protection scope of the present invention.

[0061] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0062] The invention provides a radiation calibration method and device for a satellite remote sensor. Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0063] figure 1 A flow chart of a radiometric calibration method for a satellite remote sensor provided by the first embodiment of the present invention is shown. Suc...

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Abstract

The invention provides a radiation calibration method and device for a satellite remote sensor. The method includes the following steps that a moon image is obtained from visible light images acquired by the remote sensor at a preset time, according to a moon radiological illumination model, the moon radiological illumination at the preset time is calculated, finally, according to the moon image and the moon radiological illumination, a radiation calibration coefficient of the remote sensor can be obtained, according to the radiation calibration coefficient, radiation calibration can be conducted on the remote sensor, and the method for radiation calibration of the satellite remote sensor by using the moon as a stable radiation calibration source can be achieved; by means of the radiation calibration method, the more accurate radiation calibration coefficient can be obtained, and the radiation calibration can be well conducted on the remote sensor.

Description

technical field [0001] The invention relates to the technical field of satellite radiation calibration, in particular to a radiation calibration method and device for a satellite remote sensor. Background technique [0002] With the deepening of remote sensing applications, quantitative remote sensing has become the focus of remote sensing applications, and the basis and premise of quantitative remote sensing is the radiometric calibration of remote sensors. Accurate radiometric calibration is the basis for the quantitative application of meteorological satellites. During the long-term operation of satellites in orbit, remote sensors usually have certain response attenuation characteristics due to device aging. Therefore, in order to realize the long-term quantitative application of satellite data, it is of great significance to perform radiometric calibration on the remote sensors of satellites in orbit. [0003] The moon has chronological radiation stability, and its radi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/23G01S19/34
Inventor 陈林张鹏胡秀清吴荣华张璐闵敏
Owner NAT SATELLITE METEOROLOGICAL CENT
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