Space-based CO2 flux laser detection device

A technology of laser detection and optical transceiver, which is applied in the field of optoelectronics and can solve the problems of low resolution and reliability.

Active Publication Date: 2021-06-01
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] What the present invention solves is the existing CO based on satellite remote sensing 2 The flux detection method has the problems of low resolution and low reliability

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  • Space-based CO2 flux laser detection device
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  • Space-based CO2 flux laser detection device

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Embodiment Construction

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The embodiment of the present invention provides a space-based CO 2 The flux laser detection device includes a laser module, a transceiver module and a calculation module. figure 1 A space-based CO that is an embodiment of the present invention 2 Schematic diagram of the structure of the flux laser detection device.

[0027] (1) The laser module includes a main laser 101 , a first single-frequency laser 102 , a second single-frequency laser 103 and an optical switch 104 . Optionally, the laser module can output 2 μm single-frequency pulse laser.

[0028] The output wavelength of...

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Abstract

The invention provides a space-based CO2 flux laser detection device. The space-based CO2 flux laser detection device comprises a laser module, a receiving and transmitting module and a resolving module. The laser module comprises a main laser, a first single-frequency laser, a second single-frequency laser and an optical switch. The optical switch is used for controlling alternate emission of output laser light of the first single-frequency laser and the second single-frequency laser. The receiving and transmitting module comprises an optical receiving and transmitting device and a servo system, and the optical receiving and transmitting device transmits output laser light to a measurement area and receives echo signals of the measurement area. The resolving module is used for performing signal processing and resolving according to the echo signals to obtain wind field profile information and CO2 concentration profile information of the measurement area, and performing calculation to obtain CO2 flux data. The space-based CO2 flux laser detection device provided by the invention is arranged on a space-based platform, and can be used for measuring the CO2 budget of the earth surface in a high-precision and high-reliability manner.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular, to a space-based CO 2 Flux laser detection device. Background technique [0002] Atmospheric CO 2 Global changes such as global warming caused by rising concentrations of greenhouse gases, melting of polar ice caps, rising sea levels, and changes in the species composition of ecosystems have become the most concerned environmental issues for human beings. Research on the carbon cycle mechanism of the earth system, global terrestrial Ecosystem carbon budget and its response to environmental changes have become the common core issues of a series of large-scale international research programs. The problem of "missing carbon" has been found in the research of global carbon cycle and carbon budget, and it is speculated that these "missing carbon" may be accumulated in terrestrial ecosystems. therefore. How to accurately predict the net CO between the earth's terrestrial ecos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/95G01S17/00G01S7/48
CPCG01S17/95G01S17/006G01S7/4802Y02A90/10
Inventor 姚伟王磊杨宏志毛叶飞张子越高原于志同马蓉张思勃胡洛佳
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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