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Microwave laser cloud and rain aerosol composite detection radar with high space-time matching

A composite detection and lidar technology used in the field of measurement and testing

Active Publication Date: 2021-03-02
BEIJING RES INST OF TELEMETRY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of high time-space synchronous detection of the same cloud at the same time and pointing at the same time, and provides a microwave laser cloud and rain aerosol composite detection radar with high time-space matching, which adopts microwave antenna electric axis and laser telescope optical axis calibration technology, Microwave laser system timing matching technology, microwave radar and laser radar echo joint inversion technology, realize active remote sensing detection and joint data inversion of microwave and laser on the same cloud layer at the same time and at the same place

Method used

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  • Microwave laser cloud and rain aerosol composite detection radar with high space-time matching
  • Microwave laser cloud and rain aerosol composite detection radar with high space-time matching
  • Microwave laser cloud and rain aerosol composite detection radar with high space-time matching

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Embodiment 1

[0056] Such as Figure 1-2 As shown, a microwave laser cloud-rain aerosol composite detection radar with high space-time matching is characterized in that it includes a radar cabinet 1, a millimeter-wave radar subsystem 2 partially arranged outside the radar cabinet 1, and partially arranged inside the radar cabinet 1, The laser radar subsystem 3 arranged inside the radar cabinet 1 is electrically connected to the system management and data processing subsystem 4 arranged inside the radar cabinet 1 with the millimeter wave radar subsystem 2 and the laser radar subsystem 3;

[0057] The radar cabinet 1 is used to provide a working environment with a constant temperature range for the microwave laser cloud and rain aerosol composite detection radar, and the millimeter wave radar subsystem 2 is used to modulate radio frequency signals and transmit radio frequency to the atmosphere under the control of the system management and data processing subsystem 4 signal, the millimeter-wa...

Embodiment 2

[0061] Such as Figure 2-5 As shown, a microwave laser cloud-rain aerosol composite detection radar with high space-time matching is characterized in that it includes a radar cabinet 1, a millimeter-wave radar subsystem 2 partially arranged outside the radar cabinet 1, and partially arranged inside the radar cabinet 1, The laser radar subsystem 3 arranged inside the radar cabinet 1 is electrically connected to the system management and data processing subsystem 4 arranged inside the radar cabinet 1 with the millimeter wave radar subsystem 2 and the laser radar subsystem 3;

[0062] The radar cabinet 1 is used to provide a working environment with a constant temperature range for the microwave laser cloud and rain aerosol composite detection radar, and the millimeter wave radar subsystem 2 is used to modulate radio frequency signals and transmit radio frequency to the atmosphere under the control of the system management and data processing subsystem 4 signal, the millimeter-wa...

Embodiment 3

[0086] Such as Figure 2-5 As shown, a microwave laser cloud and rain aerosol composite detection radar with high space-time matching is a new type of active remote sensing instrument, including millimeter-wave radar subsystem 2, laser radar subsystem 3, system management and data processing subsystem 4 , Radar cabinet and structure are composed of four parts. Among them, millimeter-wave radar subsystem 2 includes antenna feeder 21, transmission, reception and signal processing subsystems; lidar subsystem 3 includes laser emission, optical reception, photoelectric conversion and data acquisition subsystems; system management and data processing subsystem 4 Including system management subsystem 41 and data processing subsystem 42 .

[0087] In the antenna feeder 21, the microwave antenna adopts a Cassegrain circular-diameter parabolic antenna, which is mainly composed of four parts: a main reflector, a secondary reflector, a feed source system, a strut and a feed waveguide.

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Abstract

The invention provides a microwave laser cloud and rain aerosol composite detection radar with high space-time matching. The microwave laser cloud and rain aerosol composite detection radar comprisesa millimeter wave radar subsystem, a laser radar subsystem and a system management and data processing subsystem. By adopting a microwave radar antenna electric axis and laser radar telescope opticalaxis calibration technology and a transmitter sampling clock synchronization technology, the microwave radar and the laser radar transmit microwaves and laser to a same cloud layer at the same time and in a same place; microwave and laser echo signals backscattered by the cloud and the aerosol are respectively received by a microwave antenna and an optical telescope, and detection acquisition andprocessing of the microwave and laser echo signals are respectively realized through a microwave detection channel and an optical detection channel; and finally, composite inversion is carried out onthe microwave echo data and the laser echo data through a multi-source data joint inversion technology. The microwave laser composite detection radar realizes combined remote sensing detection and quantitative description of high space-time synchronization of different clouds, rain and aerosols through microwave radar data and laser radar data composite inversion.

Description

technical field [0001] The invention relates to the technical field of measurement and testing, in particular to a microwave laser cloud-rain aerosol composite detection radar with high space-time matching. Background technique [0002] Clouds, rain, and aerosol particles are the most widespread and significant atmospheric environmental factors. All-weather and all-weather fine-grained detection of clouds and aerosols is of great significance to meteorological security and scientific research in the fields of meteorology, environmental protection, and military affairs. Accurate cloud and aerosol information can deepen people's understanding of the earth's energy balance and improve the accuracy of numerical weather forecasting, which is of great significance to climate research. At the same time, deepen the understanding of the transformation mechanism of clouds, rain, and aerosols, enhance the remote sensing detection technology and technological innovation capabilities of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S7/41G01S7/48G01S7/497G01S13/86G01S13/95G01S17/87G01S17/95
CPCG01S7/40G01S7/41G01S7/4802G01S7/497G01S13/865G01S13/95G01S17/87G01S17/95Y02A90/10
Inventor 赵一鸣胡秀清李凉海于勇何晓晶孙立刚魏祥通宋长波潘超江柏森张凤梅黄辉
Owner BEIJING RES INST OF TELEMETRY
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