Laser radar system for simultaneously measuring atmospheric cloud height and wind field
By designing a lidar system integrating reference modules and control modules, the limitations of measuring atmospheric cloud height and wind field in the prior art are solved, and high-precision measurements of wind profiles, cloud height and visibility are achieved simultaneously, providing more Comprehensive weather information.
Patent Information
- Application Number
- CN202411403719.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-01-10
AI Technical Summary
The existing lidar system has limitations when measuring atmospheric cloud heights and wind fields. The foundation detection tower can only obtain fixed point data, and the air balloon cannot achieve continuous observation. The spatial resolution of the passive detector of infrared and microwave is insufficient. The measurement accuracy of Mann Water Vapor Detection LiDAR decreases during the daytime background light intensity and cannot obtain effective data.
A lidar system is designed to measure the height of the atmospheric clouds and wind field at the same time, including the outer housing module and the inner cavity, which integrates the reference module, control module, cloud measurement optical receiving module and wind measurement optical transceiver module, and is generated by the laser. Cloud measurement and wind measurement detection lasers are used to obtain wind profile data and cloud high measurement data using optical fiber connections and electrical connections, and combined with industrial control machines and acquisition cards to convert signals, the integration of a variety of meteorological information is achieved.
The system can simultaneously obtain wind profile data, cloud high measurement data, atmospheric extinction coefficient profile and visibility, improve measurement accuracy and data integrity, overcome the limitations of traditional systems, and provide more comprehensive meteorological information.
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Figure CN119291719A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a laser radar system for simultaneously measuring atmospheric cloud height and wind field in the field of laser radar technology, and in particular to a laser radar system for simultaneously measuring atmospheric cloud height and wind field. Background Art
[0002] There are various laser radar devices with different functions on the market. For example, most of the wind radars on the market are fixed installations based on foundations, and are mainly of the positioning detection type. Especially the laser wind radar, due to the involvement of lasers and related precision components inside the equipment, the wind radar, as a single-function device, needs to be fixed in one place for positioning and use, and then the collected information is uniformly transmitted to a processing terminal for information integration; another example is the cloud height, cloud amount, aerosol and visibility radar, which uses a laser emission source to measure the current high-altitude cloud height, cloud amount, aerosol and visibility radar equipment. The equipment determines the cloud bottom height and the aerosol concentration and visibility distance in the space through the time required for a laser pulse to be reflected from the transmitter to the cloud bottom and then to the receiver. The laser emits a laser pulse forward. If there is a cloud layer and aerosol particle concentration in front of the transmitter, strong backscattering will occur. By measuring and calculating the signal received by the receiver, the distance from the cloud layer to the transmitter and the aerosol particle concentration in the air can be determined. By counting time or scanning the light beam, the cloud cover information, aerosol concentration and visibility distance in the current location space can be obtained.
[0003] However, the current measurement methods have certain limitations. For example, ground-based detection towers can only obtain data from fixed points on the ground. Although sounding balloons can obtain water vapor distribution data within a certain altitude range, continuous observation cannot be achieved due to factors such as cost and weather. The spatial resolution of passive infrared and microwave detectors does not meet the requirements. Raman water vapor detection lidar is a more advanced detection method, but its echo signal is weak. When the background light is strong during the day, the measurement accuracy will be significantly reduced and no valid data can be obtained.
[0004] Therefore, there is an urgent need for a lidar system that can simultaneously measure atmospheric cloud height and wind field to provide new ideas and methods for atmospheric science research. Summary of the invention
[0005] In order to facilitate the collection of multiple meteorological information at the same time, the present invention provides a laser radar system for simultaneously measuring atmospheric cloud height and wind field.
[0006] The present invention is implemented by the following technical scheme: a laser radar system for simultaneously measuring atmospheric cloud height and wind field is proposed, the laser radar system comprising an outer cover module and an inner cavity; the outer cover module comprises an automatic detection station shell, a cloud measuring window embedded in the automatic detection station shell and a wind measuring window embedded in the automatic detection station shell; the inner cavity comprises a reference module, a control module, a cloud measuring optical receiving module, a cloud measuring laser emitting module and a wind measuring optical transceiver module; wherein the control module, the cloud measuring optical receiving module, the cloud measuring laser emitting module and the wind measuring optical transceiver module are all integrated on the reference module, the reference module is respectively connected to the cloud measuring laser emitting module and the wind measuring optical transceiver module through optical fibers, and the control module is respectively connected to the cloud measuring laser emitting module, the cloud measuring optical receiving module and the wind measuring optical transceiver module The blocks are electrically connected; the wind measuring window is adaptively configured with the wind measuring optical transceiver module, and the cloud measuring window is adaptively configured with the cloud measuring optical receiving module; the reference module includes a laser, and the laser is used to generate cloud measuring detection laser and wind measuring detection laser; the cloud measuring laser transmitting module is used to transmit the cloud measuring detection laser; the cloud measuring optical receiving module is used to receive a first atmospheric echo signal after the cloud measuring detection laser is reflected by the atmosphere; the wind measuring optical transceiver module is used to transmit the wind measuring detection laser and receive a second atmospheric echo signal after the wind measuring detection laser is reflected by the atmosphere; the control module is used to obtain the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and to obtain the cloud height measurement data, atmospheric extinction coefficient profile and visibility of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
[0007] As a further improvement of the above solution, the reference module includes a reference body, a mounting foot fixedly arranged at the bottom of the reference body, a laser fixedly arranged at the top of the reference body, and a cooling fan arranged in the reference body.
[0008] As a further improvement of the above scheme, the control module includes a power controller and a power switch, and the power controller controls the power on and off of the laser radar system through the power switch; the control module also includes a cloud measurement acquisition card, a wind measurement acquisition card and an industrial computer; the cloud measurement acquisition card is used to convert the first atmospheric echo signal into a first photoelectric digital signal; the wind measurement acquisition card is used to convert the second atmospheric echo signal into a second photoelectric digital signal; the industrial computer is used to obtain the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and to obtain the cloud height measurement data, atmospheric extinction coefficient profile and visibility of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
[0009] As a further improvement of the above scheme, the cloud measuring optical receiving module includes a first displacement adjustment frame, a filter placer and a telescope receiving tube; the first displacement adjustment frame, the filter placer and the telescope receiving tube are coaxially fixedly connected in sequence; a plano-convex lens and a plano-concave lens are arranged in sequence in the telescope receiving tube; a focusing plano-convex lens is arranged between the first displacement adjustment frame and the filter placer.
[0010] As a further improvement of the above scheme, the cloud measuring laser emitting module includes a second displacement adjustment frame and an optical emitting tube fixedly connected to the second displacement adjustment frame; the optical emitting tube contains a laser emitting optical path and a laser emitting lens group, so that the cloud measuring detection laser is emitted into the atmosphere along the laser emitting optical path through the laser emitting lens group.
[0011] As a further improvement of the above scheme, the wind measuring optical transceiver module includes a third displacement adjustment frame, a coaxial optical path, a spherical lens, an encoder, a rotating motor and a wedge mirror; the third displacement adjustment frame, the coaxial optical path, the spherical lens, the encoder, the rotating motor and the wedge mirror are coaxially arranged in sequence; the wind measuring optical transceiver module also includes a motor driver and a balanced detector; the motor driver is used to control the rotation of the rotating motor, and the balanced detector is used to convert the second atmospheric echo signal into an electrical signal.
[0012] As a further improvement of the above solution, the cloud measuring window corresponds to the telescope receiving tube and the optical transmitting tube respectively.
[0013] As a further improvement of the above solution, the wind measuring window corresponds to the wedge-shaped mirror.
[0014] Compared with the existing laser radar system, the laser radar system for simultaneously measuring the atmospheric cloud height and wind field of the present invention has the following beneficial effects: The laser radar system in the present invention comprises an outer cover module and an inner cavity; the outer cover module comprises an automatic detection station shell, a cloud measurement window embedded in the automatic detection station shell, and a wind measurement window embedded in the automatic detection station shell; the inner cavity contains a reference module, a control module, a cloud measurement optical receiving module, a cloud measurement laser emitting module, and a wind measurement optical transceiver module; wherein the control module, the cloud measurement optical receiving module, the cloud measurement laser emitting module, and the wind measurement optical transceiver module are all integrated on the reference module; The reference module includes a laser, which is used to generate a cloud measurement detection laser and a wind measurement detection laser; the cloud measurement laser transmitting module is used to transmit the cloud measurement detection laser; the cloud measurement optical receiving module is used to receive a first atmospheric echo signal after the cloud measurement detection laser is reflected by the atmosphere; the wind measurement optical transceiver module is used to transmit the wind measurement detection laser and receive a second atmospheric echo signal after the wind measurement detection laser is reflected by the atmosphere; the control module is used to obtain the wind profile data and cloud height measurement data of the current environment in which the laser radar system is located based on the first atmospheric echo signal and the second atmospheric echo signal, so that the laser radar system simultaneously obtains the wind profile data, cloud height measurement data, atmospheric extinction coefficient profile and visibility of the current environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a diagram of the inner cavity structure of a laser radar system for simultaneously measuring atmospheric cloud height and wind field according to an embodiment of the present invention.
[0016] Figure 2 It is a structural diagram of a frequency-stabilized laser module of a reference module in an embodiment of an application of the present invention.
[0017] Figure 3 It is a structural diagram of a control module of a reference module in an embodiment of the present invention.
[0018] Figure 4 It is a structural diagram of a control module of a reference module in another embodiment of the present invention.
[0019] Figure 5 This is a structural diagram of a cloud measuring optical receiving module in an embodiment of an application of the present invention.
[0020] Figure 6 This is a structural diagram of a cloud measuring optical receiving module in another application embodiment of the present invention.
[0021] Figure 7 This is a structural diagram of a cloud measuring laser emission module in an application embodiment of the present invention.
[0022] Figure 8 This is a structural diagram of a cloud measuring laser emission module in another application embodiment of the present invention.
[0023] Fig. 9 It is a structural diagram of a wind measurement optical transceiver module in an embodiment of the present invention.
[0024] Fig.10 It is a structural diagram of a wind measurement optical transceiver module in another embodiment of the present invention.
[0025] Fig.11 This is a structural diagram of an outer cover module in an embodiment of the present invention. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0027] See also Figure 1-Figure 11 In the embodiment of the present application, a specific structure of a laser radar system for simultaneously measuring atmospheric cloud height and wind field is proposed, and the structure includes an outer cover module 10 and an inner cavity; the outer cover module 10 includes an automatic detection station shell 308, an all-in-one meteorological sensor 307 connected to the automatic detection station shell 308, a cloud measurement window 303 embedded in the automatic detection station shell 308, and a wind measurement window 306 embedded in the automatic detection station shell; the all-in-one meteorological sensor 307 is used to obtain various meteorological parameters of the current environment in which the laser radar system is located; The inner cavity includes a reference module 11, a control module 12, a cloud measuring optical receiving module 13, a cloud measuring laser emitting module 14 and a wind measuring optical transceiver module 15; wherein the control module 12, the cloud measuring optical receiving module 13, the cloud measuring laser emitting module 14 and the wind measuring optical transceiver module 15 are all integrated on the reference module 11; the reference module 11 includes a laser 107, and the laser 107 is used to generate a cloud measuring detection laser and a wind measuring detection laser; the cloud measuring laser emitting module 14 is used to emit a cloud measuring detection laser; the cloud measuring optical receiving module 13 is used to receive a first atmospheric echo signal after the cloud measuring detection laser is reflected by the atmosphere; the wind measuring optical transceiver module 15 is used to emit a wind measuring detection laser and receive a second atmospheric echo signal after the wind measuring detection laser is reflected by the atmosphere; the control module 12 is used to obtain the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and to obtain the cloud height measurement data of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
[0028] The laser radar system in the present invention comprises an outer cover module and an inner cavity; the outer cover module comprises an automatic detection station outer shell, an all-in-one meteorological sensor connected to the automatic detection station outer shell, a cloud measurement window embedded in the automatic detection station outer shell, and a wind measurement window embedded in the automatic detection station outer shell; the all-in-one meteorological sensor is used to obtain various meteorological parameters of the current environment in which the laser radar system is located; the inner cavity comprises a reference module, a control module, a cloud measurement optical receiving module, a cloud measurement laser emitting module, and a wind measurement optical transceiver module; wherein the control module, the cloud measurement optical receiving module, the cloud measurement laser emitting module, and the wind measurement optical transceiver module are all integrated in On the reference module; the reference module includes a laser, the laser is used to generate cloud measurement detection laser and wind measurement detection laser; the cloud measurement laser transmitting module is used to transmit the cloud measurement detection laser; the cloud measurement optical receiving module is used to receive the first atmospheric echo signal after the cloud measurement detection laser is reflected by the atmosphere; the wind measurement optical transceiver module is used to transmit the wind measurement detection laser and receive the second atmospheric echo signal after the wind measurement detection laser is reflected by the atmosphere; the control module is used to obtain the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and to obtain the cloud height measurement data of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
[0029] In an application embodiment, please refer to Figure 2 The reference module 11 includes a reference body 109, a mounting foot 101 fixedly arranged at the bottom of the reference body 109, a communication antenna 102 arranged on the reference body 109, an aviation plug 103, an air filling port 104 and a desiccant observation port 105; wherein the communication antenna 102 is used to communicate with other devices, the aviation plug 103 is an external communication interface and a power interface of the laser radar system, the air filling port 104 is connected to the gas inside the reference body 109, a desiccant is arranged inside the reference body 109, and the desiccant observation port 105 is a state observation port of the desiccant, which can be removed and replaced when it is observed that the desiccant is full of moisture; in order to enhance the air tightness of the reference body 109, a sealing strip 106 is attached around the reference body 109; the reference module 11 also includes a laser 107 fixedly arranged on the top of the reference body and a cooling fan 108 arranged in the reference body 109; wherein the laser 107 is used to generate cloud detection laser and wind detection laser, and the cooling fan 108 is used to dissipate the heat inside the reference body.
[0030] In the present invention, the reference module 11 is fixed on the ground by installing the foot 101 , and the air tightness and firmness of the reference module 11 are ensured by the sealing strip 106 .
[0031] In an application embodiment, please refer to Figure 3-Figure 4The control module 12 includes a power controller 201 and a power switch 202, and the power controller 201 controls the power switch 202 to control the power on and off of the laser radar system; the control module 12 also includes a cloud measurement acquisition card 204, a wind measurement acquisition card 205 and an industrial computer 203; the cloud measurement acquisition card 204 is used to convert the first atmospheric echo signal into a first photoelectric digital signal; the wind measurement acquisition card 205 is used to convert the second atmospheric echo signal into a second photoelectric digital signal; the industrial computer 203 is used to obtain the wind profile data of the current environment in which the laser radar system is located, and obtain the cloud height measurement data, atmospheric extinction coefficient profile and visibility of the current environment in which the laser radar system is located based on the second atmospheric echo signal; specifically, the industrial computer parses the signal peak characteristics from the first atmospheric echo signal, calculates the cloud height measurement data through the signal peak characteristics, and then calculates the atmospheric extinction coefficient profile according to the Fernalad formula, and finally uses the preset inverse relationship between the extinction coefficient profile and the visibility to obtain the visibility of the current environment in which the laser radar system is located.
[0032] Furthermore, the control module 12 also includes a wireless router 206, a temperature and humidity sensor 207, a power detection module 208, a heating module 209 and a cloud-measuring single-photon detector 210; wherein the wireless router 206 is used to communicate with external devices, the temperature and humidity sensor 207 is used to obtain the temperature and humidity sensor inside the control module 12, the power detection module 208 is used to monitor the power of the laser, the heating module 209 is used to heat the internal window of the laser radar system to avoid condensation on the window due to internal air pressure or temperature, and the cloud-measuring single-photon detector 210 is used to convert the first echo signal into an electrical signal.
[0033] In the present invention, the control module 12 obtains the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and obtains the cloud height measurement data of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
[0034] In an application embodiment, please refer to Figure 5-Figure 6 The cloud measuring optical receiving module 13 includes a first optical fiber interface 401, a first displacement adjustment frame 402, a filter placement device 403 and a telescope receiving tube 404; the displacement adjustment frame 402, the filter placement device 403 and the telescope receiving tube 404 are coaxially fixedly connected in sequence; a plano-convex lens 406 and a plano-concave lens 407 are sequentially arranged in the telescope receiving tube 404; a focusing plano-convex lens 409 is arranged between the first displacement adjustment frame 402 and the filter placement device 403, and a filter 408 is also inserted in the filter placement device 403, and a cloud measuring receiving optical path 405 is arranged between the plano-convex lens 406 and the plano-concave lens 407; Among them, since a filter 408 is inserted in the filter placer 403 to filter optical signals of other wavelengths in the cloud detection laser, only the laser of the preset wavelength is allowed to pass, the telescope receiving tube 404 receives and collects the first atmosphere echo signal scattered back by the cloud detection laser through the atmosphere, the cloud detection receiving optical path 405 is an analog optical path for receiving the first atmosphere echo signal, the plano-convex lens 406 is a spherical plano-convex lens, and focuses the first atmosphere echo signal, the plano-concave lens 407 receives the focused first atmosphere echo signal to form a collimated optical path, and a focusing plano-convex lens 409 is arranged between the first displacement adjustment frame 402 and the filter placer 403, and the focusing plano-convex lens 409 is used to collimate and focus the first atmosphere echo signal passing through the filter to the first optical fiber interface 401, and the first optical fiber interface 401 is connected to the control module 12 through an optical fiber.
[0035] In the embodiment of the present application, the first atmospheric echo signal after the cloud detection laser is reflected by the atmosphere is received by a plano-convex lens 406, a plano-concave lens 407 and a cloud measurement receiving optical path 405, and a filter is also provided in the cloud measurement optical receiving module 13, which can filter the first atmospheric echo signal.
[0036] In an application embodiment, please refer to Figure 7-Figure 8 The cloud measuring laser emitting module 14 includes a second optical fiber interface 501, a second displacement adjustment frame 502, and an optical emitting tube 503 fixedly connected to the second displacement adjustment frame 502; the optical emitting tube 503 contains a laser emitting optical path 505 and a laser emitting lens group 504, so that the cloud measuring detection laser is emitted into the atmosphere along the laser emitting optical path 505 through the laser emitting lens group 504.
[0037] The second optical fiber interface 501 is connected to the laser 107 via an optical fiber, the second displacement adjustment frame 502 can accurately adjust the position between the optical fiber focus and the lens group 504 , and the optical emission tube 503 is used to install the lens group 504 and the second displacement adjustment frame 502 .
[0038] In the embodiment of the present application, the cloud measuring laser emitting module 14 emits the cloud measuring detection laser generated by the laser 107 into the atmosphere via the optical emitting tube 503, so that the cloud measuring optical receiving module 13 receives the first atmospheric echo signal after the cloud measuring detection laser is reflected by the atmosphere.
[0039] In an application embodiment, please refer to Figure 9-10The wind measurement optical transceiver module 15 includes a third optical fiber access port 601, a third displacement adjustment frame 609, a coaxial optical path 602, a spherical lens 603, an encoder 604, a rotating motor 605 and a wedge mirror 606; wherein the third displacement adjustment frame 609, the coaxial optical path 602, the spherical lens 603, the encoder 604, the rotating motor 605 and the wedge mirror 606 are coaxially arranged in sequence; the wind measurement optical transceiver module 15 also includes a motor driver 607 and a balanced detector 608; the motor driver 607 is used to control the rotation of the rotating motor 605, the balanced detector 608 is used to convert the second atmosphere echo signal into an electrical signal, and the wedge mirror 606 is connected to the motor photoelectric switch 610 to obtain the rotation position and rotation angle of the rotating motor 605; wherein the third optical fiber access port 601 is connected to the laser 107, and the wind measurement detection laser is adjusted to a suitable emission angle through the coaxial optical path by the spherical lens 603; the encoder 604 is used to control the precise rotation angle of the rotating motor 605.
[0040] In the embodiment of the present application, the wind measurement optical transceiver module 15 integrates the wind measurement optical transmitting module and the wind measurement optical receiving module into one, and simultaneously transmits the wind measurement detection laser generated by the laser 107 into the atmosphere, and receives the second atmospheric echo signal reflected by the wind measurement detection laser through the atmosphere.
[0041] In an application embodiment, please refer to Fig.11 The outer cover module 10 includes an automatic detection station shell 308, an all-in-one meteorological sensor 307 connected to the automatic detection station shell 308, a cloud measurement window 303 embedded in the automatic detection station shell 308, and a wind measurement window 306 embedded in the automatic detection station shell 308; wherein, the automatic detection station shell 308 is also provided with a handle 301, a laser protection label 302, a level 304 and a direction indicator 305.
[0042] In the embodiment of the present application, a multi-in-one meteorological sensor 307 is also provided on the outer cover module 10, which can timely obtain various meteorological parameters of the current environment in which the laser radar system is located.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A laser radar system for simultaneously measuring atmospheric cloud height and wind field, characterized in that: The laser radar system includes an outer cover module and an inner cavity; The outer cover module includes an automatic detection station shell, a cloud measurement window embedded in the automatic detection station shell, and a wind measurement window embedded in the automatic detection station shell; The inner cavity contains a reference module, a control module, a cloud measuring optical receiving module, a cloud measuring laser emitting module and a wind measuring optical transceiver module; wherein the control module, the cloud measuring optical receiving module, the cloud measuring laser emitting module and the wind measuring optical transceiver module are all integrated on the reference module, the reference module is respectively connected to the cloud measuring laser emitting module and the wind measuring optical transceiver module through optical fibers, the control module is respectively electrically connected to the cloud measuring laser emitting module, the cloud measuring optical receiving module and the wind measuring optical transceiver module; the wind measuring window is adapted to the wind measuring optical transceiver module, and the cloud measuring window is adapted to the cloud measuring optical receiving module; The reference module includes a laser, which is used to generate a cloud measurement detection laser and a wind measurement detection laser; the cloud measurement laser transmitting module is used to transmit the cloud measurement detection laser; the cloud measurement optical receiving module is used to receive a first atmospheric echo signal after the cloud measurement detection laser is reflected by the atmosphere; the wind measurement optical transceiver module is used to transmit the wind measurement detection laser and receive a second atmospheric echo signal after the wind measurement detection laser is reflected by the atmosphere; the control module is used to obtain the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and to obtain the cloud height measurement data of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
2. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 1, characterized in that: The reference module comprises a reference body, a mounting foot fixedly arranged at the bottom of the reference body, a laser fixedly arranged at the top of the reference body, and a heat dissipation fan arranged in the reference body.
3. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 1, characterized in that: The control module includes a power controller and a power switch, and the power controller controls the power on and off of the laser radar system through the power switch; the control module also includes a cloud measurement acquisition card, a wind measurement acquisition card and an industrial computer; the cloud measurement acquisition card is used to convert the first atmospheric echo signal into a first photoelectric digital signal; the wind measurement acquisition card is used to convert the second atmospheric echo signal into a second photoelectric digital signal; the industrial computer is used to obtain the wind profile data of the current environment in which the laser radar system is located based on the first atmospheric echo signal, and to obtain the cloud height measurement data, atmospheric extinction coefficient profile and visibility of the current environment in which the laser radar system is located based on the second atmospheric echo signal.
4. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 1, characterized in that: The cloud measuring optical receiving module includes a first displacement adjustment frame, a filter placer and a telescope receiving tube; the first displacement adjustment frame, the filter placer and the telescope receiving tube are coaxially fixedly connected in sequence; a plano-convex lens and a plano-concave lens are arranged in sequence in the telescope receiving tube; a focusing plano-convex lens is arranged between the first displacement adjustment frame and the filter placer.
5. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 4, characterized in that: The cloud measuring laser emission module includes a second displacement adjustment frame and an optical emission tube fixedly connected to the second displacement adjustment frame; the optical emission tube contains a laser emission optical path and a laser emission lens group, so that the cloud measuring detection laser is emitted into the atmosphere along the laser emission optical path through the laser emission lens group.
6. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 1, characterized in that: The wind measurement optical transceiver module includes a third displacement adjustment frame, a coaxial optical path, a spherical lens, an encoder, a rotating motor and a wedge mirror; the third displacement adjustment frame, the coaxial optical path, the spherical lens, the encoder, the rotating motor and the wedge mirror are coaxially arranged in sequence; the wind measurement optical transceiver module also includes a motor driver and a balanced detector; the motor driver is used to control the rotation of the rotating motor, and the balanced detector is used to convert the second atmospheric echo signal into an electrical signal.
7. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 5, characterized in that: The cloud measuring windows correspond to the telescope receiving tube and the optical transmitting tube respectively.
8. The laser radar system for simultaneously measuring atmospheric cloud height and wind field according to claim 6, characterized in that: The wind measuring window corresponds to the wedge-shaped mirror.
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