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Real-time calibration device and method for ground-based microwave radiometer

A technology of microwave radiometer and radiometer, which is applied in the direction of measuring devices, instruments, climate sustainability, etc., can solve the problems of insufficient stability of domestic noise sources and insufficient system stability

Inactive Publication Date: 2015-04-01
NAT SPACE SCI CENT CAS
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Problems solved by technology

Due to the complexity of the ground environment and the stability of the noise source used for internal calibration of ground-based radiometers, domestic ground-based microwave radiometers generally cannot meet the calibration requirements due to the lack of system stability and the stability of domestic noise sources. Maintain relatively stable and high detection accuracy requirements within a period of 3 months

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  • Real-time calibration device and method for ground-based microwave radiometer
  • Real-time calibration device and method for ground-based microwave radiometer
  • Real-time calibration device and method for ground-based microwave radiometer

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] Such as figure 1As shown, the present invention provides a real-time calibration device for a ground-based microwave radiometer, said device comprising: a ground-based microwave radiometer 1, a first polarized wire grid 2, a left heat source 3, a second polarized wire grid 4, a right Heat source 5 and lower heat source 6; centering on the ground-based microwave radiometer 1, the first polarization wire grid 2 is located on the left side of the ground-based microwave radiometer 1, and the left heat source 3 is located on the left side of the first polarization wire grid 2 On the left side; the second polarized wire grid 4 is located on the right side of the ground-based microwave radiometer 1, and the right heat source 5 is located on the right side of the second polarized wire grid 4; the lower heat source 6 is located at the right side ...

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Abstract

The invention provides a real-time calibration device for a ground-based microwave radiometer. The device comprises the ground-based microwave radiometer(1), a first polarized wire grating (2), a left heat source (3), a second polarized wire grating (4), a right heat source (5) and a lower heat source (6), wherein the ground-based microwave radiometer(1) is taken as the center, the first polarized wire grating (2) is located on the left of the ground-based microwave radiometer(1), the left heat source (3) is located on the left of the first polarized wire grating (2), the second polarized wire grating (4) is located on the right of the ground-based microwave radiometer(1), the right heat source (5) is located on the right of the second polarized wire grating (4), and the lower heat source (6) is located below the ground-based microwave radiometer(1). Based on the real-time calibration device for the ground-based microwave radiometer, the invention further provides a real-time calibration method for the ground-based microwave radiometer. By means of the method, real-time calibration of the ground-based microwave radiometer can be realized.

Description

technical field [0001] The invention relates to the technical field of ground-based microwave radiometer calibration, in particular to a real-time calibration device and method for a ground-based microwave radiometer. Background technique [0002] The ground-based microwave radiometer is a ground-based atmospheric profile microwave detector. Its detection frequency includes water vapor absorption line 20-30GHz (7 channels) and oxygen absorption line 50-60GHz (7 channels). Oxygen, water vapor absorption spectrum and radiation brightness temperature of window frequency, inversion of atmospheric temperature, humidity profile and other atmospheric parameters: tropospheric temperature profile (0-10000m), boundary layer high-resolution temperature profile (0-1000m) , tropospheric humidity (water vapor) profiles, high temporal resolution, accurate liquid water path (LWP) and integrated water vapor flux (IWV) measurements. [0003] Compared with sounding radar, ground-based microwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00G01W1/18
CPCY02A90/10
Inventor 王新彪张升伟张祥坤王振占
Owner NAT SPACE SCI CENT CAS
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