CN115189762A - Method and device for detecting communication availability of satellite-ground laser communication ground station - Google Patents
Method and device for detecting communication availability of satellite-ground laser communication ground station Download PDFInfo
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Abstract
The invention provides a method and a device for detecting the communication availability of a satellite-ground laser communication ground station, which relate to the technical field of remote sensing satellite data reception, and the method comprises the following steps: acquiring meteorological information, atmospheric turbulence information and cloud cover information of a satellite-ground laser communication ground station; calculating the angle and position relation of the satellite relative to the satellite-ground laser communication ground station at each moment and the loss on a link of the satellite and the satellite-ground laser communication ground station; and acquiring corresponding meteorological information and/or atmospheric turbulence information and/or cloud cover information and/or loss based on the angle and position relation corresponding to each moment to determine the availability of the satellite and ground station communication link corresponding to the angle and position relation. The method and the device solve the problem that the prior art lacks the capability of quantitatively analyzing the communication availability of the satellite-ground laser communication ground station.
Description
Technical Field
The disclosure relates to the technical field of remote sensing satellite data receiving, in particular to a method and a device for detecting the communication availability of a satellite-ground laser communication ground station.
Background
With the rapid development of remote sensing technology, the number of satellite loads and the resolution of the loads are greatly improved, and the generated data volume is increased in a geometric grade, so that the requirement on high-speed satellite-ground data transmission is increasingly urgent. The usable bandwidth of satellite-ground laser communication can reach THz magnitude, and the communication rate can reach hundreds Gbps magnitude, so that the method is an important mode for high-speed satellite-ground data transmission in the future. However, satellite-to-ground laser communication is limited by atmospheric environments, including: the laser energy is attenuated under the weather conditions of fog, rain, snow, cloud and the like in the troposphere, so that the optical communication link is interrupted; the real-time dynamic change of the non-uniform atmospheric layer in the near-ground area causes atmospheric turbulence which is represented by light field spatial coherence degradation, light beam drift fluctuation, arrival angle fluctuation and light intensity flicker, and the quality of signal light at a receiving end is deteriorated. Therefore, the communication availability of the satellite-ground laser communication ground station needs to be detected so as to reasonably arrange satellite-ground laser communication services.
At present, the method for analyzing the communication availability of the satellite-ground laser communication ground station mainly utilizes historical meteorological data and short-term turbulence measurement data to count the weather of clear days and the seasonal and macroscopic angle laws of atmospheric turbulence intensity, and qualitatively analyzes the communication conditions of the satellite-ground laser communication station, and has the following two problems: firstly, factors influencing the communication availability of the satellite-ground laser communication ground station are more, and only meteorological data and short-term turbulence measurement data cannot accurately reflect the availability of the satellite-ground laser communication station. Secondly, the existing method can only evaluate whether the station site is suitable for building the satellite-ground laser communication ground station or not, lacks the capability of quantitatively analyzing the communication availability of the satellite-ground laser communication ground station, and cannot judge whether the current satellite-ground laser communication ground station has the communication capability or not in the actual service operation.
Disclosure of Invention
In view of the above technical problem, a first aspect of the present disclosure provides a method for detecting a communication availability of a satellite-ground laser communication ground station, including: acquiring meteorological information, atmospheric turbulence information and cloud cover information of a satellite-ground laser communication ground station; calculating the angle and position relation of the satellite relative to the satellite-ground laser communication ground station at each moment and the loss on a link of the satellite and the satellite-ground laser communication ground station; and acquiring corresponding meteorological information and/or atmospheric turbulence information and/or cloud cover information and/or loss to determine the availability of a satellite and ground station communication link corresponding to the angle and position relation based on the angle and position relation corresponding to each moment.
According to the embodiment of the disclosure, acquiring the meteorological information of the satellite-ground laser communication ground station specifically comprises: measuring ground meteorological information, wherein the ground meteorological information comprises at least one of temperature, relative humidity, air pressure, wind speed and wind direction of the satellite-ground laser communication ground station; and calculating space meteorological information, wherein the space meteorological information comprises at least one of temperature, relative humidity, air pressure, wind speed and wind direction at different elevations.
According to the embodiment of the disclosure, acquiring the atmospheric turbulence information of the satellite-ground laser communication ground station specifically comprises: measuring a first atmospheric coherence length of a star at a first zenith angle of the day; and calculating a second atmospheric coherence length of the satellite-ground laser communication ground station at a second zenith angle according to the first zenith angle and the first atmospheric coherence length, and using the second atmospheric coherence length as atmospheric turbulence information of the satellite-ground laser communication ground station.
According to the embodiment of the disclosure, calculating the second atmospheric coherence length of the satellite-ground laser communication ground station at the second zenith angle according to the first zenith angle and the first atmospheric coherence length specifically comprises: according to
r′ 0 ＝r 0 .(cosθ) -3/5 ·(cosα) -3/5 Calculating a second atmospheric coherence length r' 0 Wherein r is 0 Is the first atmospheric coherence length, theta is the first zenith angle, and alpha is the second zenith angle.
According to the embodiment of the disclosure, acquiring cloud cover information of the satellite-ground laser communication ground station specifically comprises: collecting a first all-sky image of a visible light wave band and a second all-sky image of an infrared wave band; cloud cover information is extracted from the first all-sky image and the second all-sky image.
According to the embodiment of the disclosure, calculating the angle and position relation of each time satellite relative to the satellite-ground laser communication ground station specifically comprises: calculating coordinates of the satellite in the field angle range of the satellite-ground laser communication ground station at each moment; and calculating the distance, azimuth angle and pitch angle of the satellite relative to the satellite-ground laser communication ground station at each moment as an angle and position relation according to the coordinates at each moment and the position information of the satellite on the satellite-ground laser communication ground.
According to the embodiment of the disclosure, based on the angle and position relationship corresponding to each moment, the availability of the satellite and ground station communication link corresponding to the angle and position relationship is determined by acquiring the corresponding meteorological information and/or atmospheric turbulence information and/or cloud cover information and/or loss, and specifically includes: judging whether the temperature is within the working temperature range of the satellite-ground laser communication ground station, if so, determining that a communication link between the satellite and the ground station is available, and if not, determining that the communication link between the satellite and the ground station is unavailable; and/or judging whether the wind speed and the wind direction are within the wind load capacity range of the satellite-ground laser communication ground station, if so, determining that the communication link between the satellite and the ground station is available, and if not, determining that the communication link between the satellite and the ground station is unavailable; and/or judging whether the satellite-ground laser communication ground station has rainfall according to the relative humidity, if not, determining that the communication link between the satellite and the ground station is available, and if so, determining that the communication link between the satellite and the ground station is unavailable; and/or judging whether the atmospheric turbulence of the satellite-ground communication link exceeds the correction capability of the ground station according to the atmospheric turbulence information, if so, determining that the satellite-ground communication link is available, and if not, determining that the satellite-ground communication link is unavailable; and/or calculating the allowance of the communication link between the satellite and the ground station according to the cloud cover information and the loss, if the allowance is larger than zero, determining that the communication link between the satellite and the ground station is available, otherwise, determining that the communication link between the satellite and the ground station is available.
According to the embodiment of the disclosure, weather information, atmospheric turbulence information and cloud cover information of the satellite-ground laser communication ground station are obtained based on the dynamic link library of plug-in.
According to the embodiment of the disclosure, the field angle for collecting the first all-sky image and the second all-sky image is two times or more than the range of the second zenith angle of the satellite-ground laser communication ground station, and the resolution is three times or more than the angular resolution corresponding to the second zenith angle of the satellite-ground laser communication ground station.
The second aspect of the present disclosure provides a device for detecting the communication availability of a satellite-ground laser communication ground station, including: the information acquisition module is used for acquiring meteorological information, atmospheric turbulence information and cloud cover information of the satellite-ground laser communication ground station; the information acquisition module is constructed by adopting a dynamic link library based on plug-in; the computing module is used for computing the angle and position relation of the satellite relative to the satellite-ground laser communication ground station at each moment and the loss on a link of the satellite and the satellite-ground laser communication ground station; and the availability analysis module is used for acquiring corresponding meteorological information and/or atmospheric turbulence information and/or cloud cover information and/or loss based on the corresponding angle and position relationship at each moment to determine the availability of the satellite and ground station communication link corresponding to the angle and position relationship.
According to the detection method and the detection device for the communication availability of the satellite-ground laser communication ground station, provided by the embodiment of the disclosure, the following technical effects can be realized:
calculating spatial layered meteorological data in real time by acquiring ground meteorological data in real time; calculating atmospheric turbulence information of a full airspace by measuring point information of atmospheric turbulence; through the mode of combining the infrared band all-sky image and the visible light all-sky image, the cloud cover distribution information of the all-airspace is calculated, real-time, high-precision and high-resolution environmental data can be provided for quantitative analysis of the availability of the satellite-ground laser communication ground station, and the problem that the existing method is lack of a data source and can only use large-scale and discrete data for qualitative statistical analysis is solved.
Furthermore, weather information, atmospheric turbulence information and cloud amount information of the satellite-ground laser communication ground station are obtained by adopting a dynamic link library based on plug-in, the variety of the collected information can be dynamically expanded, an environment information source can be rapidly expanded, and the precision of quantitative analysis is further improved.
Furthermore, the availability of the communication link between the satellite and the ground station is determined through multiple factors, and the accuracy of quantitative analysis of the availability of the satellite-ground laser communication ground station is improved.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:
fig. 1 schematically shows a flowchart of a method for detecting communication availability of a satellite-ground laser communication ground station according to an embodiment of the present disclosure.
Fig. 2 schematically shows a block diagram of a device for detecting the communication availability of a satellite-ground laser communication ground station according to an embodiment of the present disclosure.
Fig. 3 schematically shows a block diagram of an electronic device adapted to implement the above described method according to an embodiment of the invention.
Detailed Description
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In the description of the present disclosure, it is to be understood that the terms "longitudinal," "length," "circumferential," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present disclosure and for simplicity in description, and are not intended to indicate or imply that the referenced subsystems or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present disclosure.
Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure. And the shapes, sizes and positional relationships of the components in the drawings do not reflect the actual sizes, proportions and actual positional relationships. In addition, in the present disclosure, any reference signs placed between parentheses shall not be construed as limiting the present disclosure.
Similarly, in the above description of exemplary embodiments of the disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various disclosed aspects. Reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
The embodiment of the disclosure provides a method and a device for detecting the communication availability of a satellite-ground laser communication ground station, aiming at the problem that the communication availability of the satellite-ground laser communication ground station cannot be quantitatively analyzed in the prior art. The following detailed description is to be read in connection with specific embodiments.
Fig. 1 schematically shows a flowchart of a method for detecting communication availability of a satellite-ground laser communication ground station according to an embodiment of the present disclosure.
As shown in fig. 1, the method for detecting the communication availability of the satellite-ground laser communication ground station may include, for example, operations S101 to S103.
In operation S101, weather information, atmospheric turbulence information, and cloud cover information of the laser communication satellite-ground station are acquired.
In an embodiment of the present disclosure, obtaining weather information of the satellite-ground laser communication ground station may include: the method includes measuring ground meteorological information, wherein the ground meteorological information may include, for example, at least one of temperature, relative humidity, barometric pressure, wind speed, and wind direction of the satellite-to-ground laser communication ground station. Spatial weather information is calculated, wherein the spatial weather information may comprise at least one of temperature, relative humidity, air pressure, wind speed, wind direction at different elevations, for example. And taking the ground meteorological information and the space meteorological information as final meteorological information of the satellite-ground laser communication ground station.
For example, a near-ground meteorological element information measuring module may be deployed outdoors, and the near-ground meteorological element data collected by each sensor may be collected by a collection card to obtain ground meteorological information, and then output through a gigabit network.
The spatial meteorological information calculation module can be deployed indoors, and a numerical meteorological forecasting model is used for calculating layered spatial meteorological information with specified time and spatial resolution, for example, spatial meteorological information such as temperature, relative humidity, air pressure, wind speed and wind direction with the required horizontal resolution and vertical resolution of 10km and the time resolution of 30s of the satellite-ground laser communication ground station.
In an embodiment of the present disclosure, acquiring the atmospheric turbulence information of the satellite-ground laser communication ground station may include, for example: a first atmospheric coherence length of stars at a first zenith angle of day is measured. And calculating a second atmospheric coherence length of the satellite-ground laser communication ground station at a second zenith angle according to the first zenith angle and the first atmospheric coherence length, and taking the second atmospheric coherence length as atmospheric turbulence information of the satellite-ground laser communication ground station. The second zenith angle of each size can be calculated to obtain a corresponding second atmospheric coherence length, so that the second atmospheric coherence length of the second zenith angle of any angle is calculated based on the first atmospheric coherence length corresponding to the first zenith angle of a certain angle, and further the atmospheric turbulence information of the full airspace is obtained. The method can adopt a differential image motion monitor to measure the first atmospheric coherence length of the zenith angle of the fixed star by tracking the fixed star for imaging.
In an embodiment of the present disclosure, can be according to
r′ 0 ＝r 0 ·(cosθ) -3/5 ·(cosα) -3/5
Calculating a second atmospheric coherence length r' 0 Wherein r is 0 Is the first atmospheric coherence length, theta is the first zenith angle, and alpha is the second zenith angle. Wherein, in order to ensure that the spatial resolution of the collected atmospheric turbulence data and the collected meteorological information is consistent, the second atmospheric coherence length of all angles with the zenith angle of 0-70 degrees and the angular resolution of 1 degree can be calculated.
In an embodiment of the present disclosure, acquiring cloud cover information of the laser communication ground station may include: the method comprises the steps of collecting a first all-sky image of a visible light wave band and a second all-sky image of an infrared wave band, and extracting cloud cover information from the first all-sky image and the second all-sky image.
For example, in the daytime, a visible camera may be used to collect an all-sky image in a visible light band as a first all-sky image, and at night, an infrared camera may be used to collect an all-sky image in an infrared band as a second all-sky image, and then cloud amount information is extracted from the first all-sky image and the second all-sky image to generate a cloud amount distribution profile. Generating the cloud profile may include, for example: and performing multi-valued analysis on cloud amount distribution based on the collected all-sky cloud amount information, and counting and generating cloud amount in a field angle according to a customizable cloud amount judgment standard so as to generate a cloud amount distribution profile.
In an embodiment of the present disclosure, the detection range, time, and spatial resolution of the cloud amount information and the weather information and the atmospheric turbulence information need to be the same when acquiring the cloud amount information to ensure the consistency of the data, and therefore, the field angle and the resolution of the visible light camera and the infrared camera may meet the following requirements:
the field angle for collecting the first all-sky image and the second all-sky image can be two times or more than the second zenith angle range of the satellite-ground laser communication ground station. For example, the zenith angle of atmospheric turbulence data acquisition ranges from 0 ° to 70 °, then the field angle may be chosen to be 140 °.
The resolution is three times or more than the angular resolution corresponding to the second zenith angle of the satellite-ground laser communication ground station. Typical resolutions are greater than 420 x 420.
In operation S102, the angular and positional relationship of the satellite with respect to the earth-satellite laser communication ground station at each time and the loss on the link of the satellite with the earth-satellite laser communication ground station are calculated.
In an embodiment of the present disclosure, calculating the angle and the position relationship of the satellite relative to the satellite-ground laser communication ground station at each time may include, for example: and calculating coordinates of the satellite in the field angle range of the satellite-ground laser communication ground station at each moment. And calculating the distance, the azimuth angle and the pitch angle of the satellite relative to the satellite-ground laser communication ground station at each moment as the angle and position relation according to the coordinates at each moment and the position information of the satellite on the satellite-ground laser communication ground.
For example, calculating the coordinates of the satellite in the field angle range of the satellite-ground laser communication ground station at each time may include: reading the two-row root or transient root of the satellite, and calculating (x, y, z) coordinates of the satellite in a WGS84 coordinate system at each moment in the field angle range of the ground station by using an orbit calculation module such as SGP 4.
Calculating the loss on the link between the satellite and the satellite-to-ground laser communication ground station may include, for example: and respectively calculating the space path loss of the laser signal at each moment, such as atmospheric attenuation, rain attenuation and the like.
In operation S103, based on the angle and position relationship corresponding to each time, the availability of the satellite and ground station communication link corresponding to the angle and position relationship is determined by obtaining the corresponding weather information and/or atmospheric turbulence information and/or cloud cover information and/or loss.
In an embodiment of the present disclosure, the availability decision refers to deciding whether the satellite-to-ground laser communication condition is met at each time according to environment information such as satellite transmission power, ground station reception gain, spatial path loss, wind speed, wind direction, and relative humidity, and the intensity of atmospheric turbulence on the path, and may include: judging whether the temperature is within the working temperature range of the satellite-ground laser communication ground station, if so, determining that a communication link between the satellite and the ground station is available, and if not, determining that the communication link between the satellite and the ground station is unavailable; and/or judging whether the wind speed and the wind direction are within the wind load capacity range of the satellite-ground laser communication ground station, if so, determining that the communication link between the satellite and the ground station is available, and if not, determining that the communication link between the satellite and the ground station is unavailable; and/or judging whether the satellite-ground laser communication ground station rains or not according to the relative humidity, if not, determining that the communication link between the satellite and the ground station is available, and if so, determining that the communication link between the satellite and the ground station is unavailable; and/or judging whether the atmospheric turbulence of the satellite-ground communication link exceeds the correction capability of the ground station according to the atmospheric turbulence information, if so, determining that the satellite-ground communication link is available, and if not, determining that the satellite-ground communication link is unavailable; and/or calculating the allowance of the communication link between the satellite and the ground station according to the cloud cover information and the loss, if the allowance is larger than zero, determining that the communication link between the satellite and the ground station is available, otherwise, determining that the communication link between the satellite and the ground station is available.
It should be understood that the weather information, the atmospheric turbulence information, the cloud amount information, the loss, and the like corresponding to different angles and position relationships may be different, and therefore, the corresponding weather information, the atmospheric turbulence information, the cloud amount information, and the loss should be obtained for judgment according to different angles and position relationships.
According to the embodiment of the disclosure, the method for detecting the communication availability of the satellite-ground laser communication ground station may further include: and storing the acquired meteorological information, the atmospheric turbulence information, the cloud cover information and the image.
Illustratively, various collected environmental information such as meteorological information, atmospheric turbulence information, cloud cover information and the like can be formatted, various data are aligned according to time and space, and environmental information in a JSON format can be generated and stored in a MYSQL database. For the collected image information (such as a whole sky image), the image is filed in a file storage space according to a time rule, and a file path is stored in a MYSQL database. The MYSQL database can be communicated with the information acquisition module based on a TCP/IP protocol to store various environmental information.
According to the embodiment of the disclosure, the method for detecting the communication availability of the satellite-ground laser communication ground station may further include: and issuing and displaying the availability detection result.
Illustratively, the results of the availability measurements of the satellite and ground station communication links may be distributed to designated users in a designated format. For example, the availability detection result of the communication link between the satellite and the ground station is formatted into a JSON data packet and pushed to a specified user through a webService interface.
The results of the detection of the availability of the satellite and ground station communication links can be presented in two and three dimensions. For example, the communication availability on the orbital plane of satellite and ground station communication is shown in the form of a two-dimensional map or a three-dimensional earth.
Fig. 2 schematically shows a block diagram of a device for detecting the communication availability of a satellite-ground laser communication ground station according to an embodiment of the present disclosure.
As shown in fig. 2, the device 200 for detecting the communication availability of the satellite-ground laser communication ground station may include, for example, an information acquisition module 210, a calculation module 220, an availability analysis module 230, an analysis module 240, and a publishing and display module 250.
And the acquisition module 210 is used for acquiring meteorological information, atmospheric turbulence information and cloud cover information of the satellite-ground laser communication ground station. The information acquisition module is constructed by adopting a dynamic link library based on plug-in.
And the calculating module 220 is used for calculating the angle and the position relation of the satellite relative to the satellite-ground laser communication ground station at each moment and the loss on the link of the satellite and the satellite-ground laser communication ground station.
And the availability analysis module 230 is configured to obtain corresponding weather information and/or atmospheric turbulence information and/or cloud cover information and/or loss based on the angle and position relationship corresponding to each time, and determine availability of the satellite and ground station communication link corresponding to the angle and position relationship.
And the storage module 240 is used for storing the acquired meteorological information, the atmospheric turbulence information, the cloud cover information and the image.
And a publishing and displaying module 250, configured to publish and display the availability detection result.
Any of the modules, sub-modules, units, sub-units, or at least part of the functionality of any of them according to embodiments of the invention may be implemented in one module. Any one or more of the modules, sub-modules, units, and sub-units according to the embodiments of the present invention may be implemented by being divided into a plurality of modules. Any one or more of the modules, sub-modules, units, sub-units according to embodiments of the present invention may be implemented at least in part as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or may be implemented in any other reasonable manner of hardware or firmware by integrating or packaging a circuit, or in any one of or a suitable combination of software, hardware, and firmware implementations. Alternatively, one or more of the modules, sub-modules, units, sub-units according to embodiments of the present invention may be at least partially implemented as computer program modules, which, when executed, may perform the corresponding functions.
For example, any number of the information collection module 210, the calculation module 220, the usability analysis module 230, the analysis module 240, and the publishing and display module 250 may be combined into one module/unit/sub-unit to be implemented, or any one of the modules/units/sub-units may be split into a plurality of modules/units/sub-units. Alternatively, at least part of the functionality of one or more of these modules/units/sub-units may be combined with at least part of the functionality of other modules/units/sub-units and implemented in one module/unit/sub-unit. According to an embodiment of the present invention, at least one of the information collecting module 210, the calculating module 220, the usability analyzing module 230, the analyzing module 240, and the publishing and displaying module 250 may be at least partially implemented as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or may be implemented by hardware or firmware in any other reasonable manner of integrating or packaging a circuit, or implemented by any one of three implementations of software, hardware, and firmware, or an appropriate combination of any several of them. Alternatively, at least one of the information collection module 210, the calculation module 220, the availability analysis module 230, the analysis module 240, and the publication and display module 250 may be at least partially implemented as a computer program module that, when executed, may perform a corresponding function.
It should be noted that the apparatus for detecting the communication availability of the laser satellite-ground communication ground station in the embodiment of the present invention corresponds to the method for detecting the communication availability of the laser satellite-ground communication ground station in the embodiment of the present invention, and the specific implementation details and the technical effects thereof are the same, and are not described herein again.
Fig. 3 schematically shows a block diagram of an electronic device adapted to implement the above described method according to an embodiment of the invention. The electronic device shown in fig. 3 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 3, an electronic device 300 according to an embodiment of the present invention includes a processor 301 that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 302 or a program loaded from a storage section 308 into a Random Access Memory (RAM) 303. Processor 301 may comprise, for example, a general purpose microprocessor (e.g., a CPU), an instruction set processor and/or associated chipset, and/or a special purpose microprocessor (e.g., an Application Specific Integrated Circuit (ASIC)), among others. The processor 301 may also include on-board memory for caching purposes. Processor 301 may include a single processing unit or multiple processing units for performing different acts of method flows in accordance with embodiments of the present invention.
In the RAM303, various programs and data necessary for the operation of the electronic apparatus 300 are stored. The processor 301, the ROM302, and the RAM303 are connected to each other via a bus 304. The processor 301 performs various operations of the method flow according to the embodiments of the present invention by executing programs in the ROM302 and/or the RAM 303. Note that the program may also be stored in one or more memories other than the ROM302 and the RAM 303. The processor 301 may also perform various operations of method flows according to embodiments of the present invention by executing programs stored in the one or more memories.
According to an embodiment of the present invention, electronic device 300 may also include an input/output (I/O) interface 305, input/output (I/O) interface 305 also being connected to bus 304. Electronic device 300 may also include one or more of the following components connected to I/O interface 305: an input portion 306 including a keyboard, a mouse, and the like; an output section 307 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 308 including a hard disk and the like; and a communication section 309 including a network interface card such as a LAN card, a modem, or the like. The communication section 309 performs communication processing via a network such as the internet. A drive 310 is also connected to the I/O interface 305 as needed. A removable medium 311 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 310 as necessary, so that a computer program read out therefrom is mounted into the storage section 308 as necessary.
According to an embodiment of the present invention, the method flow according to an embodiment of the present invention may be implemented as a computer software program. For example, embodiments of the invention include a computer program product comprising a computer program embodied on a computer-readable storage medium, the computer program comprising program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 309, and/or installed from the removable medium 311. The computer program, when executed by the processor 301, performs the above-described functions defined in the system of the embodiment of the present invention. The above described systems, devices, apparatuses, modules, units, etc. may be implemented by computer program modules according to embodiments of the present invention.
The present invention also provides a computer-readable storage medium, which may be contained in the apparatus/device/system described in the above embodiments; or may exist separately and not be assembled into the device/apparatus/system. The computer-readable storage medium carries one or more programs which, when executed, implement the method according to an embodiment of the present invention.
According to an embodiment of the present invention, the computer readable storage medium may be a non-volatile computer readable storage medium. Examples may include, but are not limited to: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
For example, according to an embodiment of the present invention, a computer-readable storage medium may include one or more memories other than the above-described ROM302 and/or RAM303 and/or ROM302 and RAM 303.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It will be appreciated by a person skilled in the art that features described in the various embodiments of the invention may be combined and/or coupled in a number of ways, even if such combinations or couplings are not explicitly described in the invention. In particular, various combinations and/or subcombinations of the features described in connection with the various embodiments of the invention may be made without departing from the spirit and teachings of the invention. All such combinations and/or associations fall within the scope of the present invention.
Claims (10)
1. A method for detecting the communication availability of a satellite-ground laser communication ground station is characterized by comprising the following steps:
acquiring meteorological information, atmospheric turbulence information and cloud cover information of a satellite-ground laser communication ground station;
calculating the angle and position relation of the satellite relative to the satellite-ground laser communication ground station at each moment and the loss on a link of the satellite and the satellite-ground laser communication ground station;
and acquiring the corresponding weather information and/or the atmospheric turbulence information and/or the cloud cover information and/or the loss based on the angle and position relation corresponding to each moment to determine the availability of the satellite and ground station communication link corresponding to the angle and position relation.
2. The detection method according to claim 1, wherein the acquiring of weather information of the satellite-ground laser communication ground station specifically comprises:
measuring ground meteorological information, wherein the ground meteorological information comprises at least one of temperature, relative humidity, barometric pressure, wind speed, and wind direction of the satellite-to-ground laser communication ground station;
and calculating space meteorological information, wherein the space meteorological information comprises at least one of temperature, relative humidity, air pressure, wind speed and wind direction at different elevations.
3. The detection method according to claim 1, wherein the obtaining of the atmospheric turbulence information of the satellite-ground laser communication ground station specifically comprises:
measuring a first atmospheric coherence length of a star at a first zenith angle of the day;
and calculating a second atmospheric coherence length of the satellite-ground laser communication ground station at a second zenith angle according to the first zenith angle and the first atmospheric coherence length, and taking the second atmospheric coherence length as atmospheric turbulence information of the satellite-ground laser communication ground station.
4. The detection method according to claim 3, wherein the calculating a second atmospheric coherence length of the satellite-ground laser communication ground station at a second zenith angle according to the first zenith angle and the first atmospheric coherence length specifically includes:
according to
r′ 0 ＝r 0 ·(cosθ) -3/5 ·(cosα) -3/5
Calculating the second atmospheric coherence length r' 0 Wherein r is 0 And theta is the first atmospheric coherence length, theta is the first zenith angle, and alpha is the second zenith angle.
5. The detection method according to claim 1, wherein the obtaining of the cloud cover information of the satellite-ground laser communication ground station specifically comprises:
collecting a first all-sky image of a visible light wave band and a second all-sky image of an infrared wave band;
extracting the cloud cover information from the first whole sky image and the second whole sky image.
6. The detection method according to claim 1, wherein calculating the angular and positional relationship of the satellite with respect to the satellite-to-ground laser communication ground station at each time specifically comprises:
calculating coordinates of the satellite in the field angle range of the satellite-ground laser communication ground station at each moment;
and calculating the distance, the azimuth angle and the pitch angle of the satellite relative to the satellite-ground laser communication ground station at each moment as the angle and position relation according to the coordinates at each moment and the position information of the satellite on the satellite-ground laser communication ground.
7. The method according to claim 2, wherein the obtaining the weather information and/or the atmospheric turbulence information and/or the cloud cover information and/or the loss corresponding to each time to determine the availability of the satellite-ground station communication link corresponding to the angle and position relationship comprises:
judging whether the temperature is within the working temperature range of the satellite-ground laser communication ground station, if so, determining that a communication link between the satellite and the ground station is available, and if not, determining that the communication link between the satellite and the ground station is unavailable; and/or
Judging whether the wind speed and the wind direction are within the wind load capacity range of the satellite-ground laser communication ground station, if so, determining that a communication link between the satellite and the ground station is available, and if not, determining that the communication link between the satellite and the ground station is unavailable;
judging whether the satellite-ground laser communication ground station rains or not according to the relative humidity, if not, determining that a communication link between the satellite and the ground station is available, and if so, determining that the communication link between the satellite and the ground station is unavailable; and/or
Judging whether the atmospheric turbulence of the satellite-ground communication link exceeds the correction capability of the ground station or not according to the atmospheric turbulence information, if so, determining that the satellite-ground communication link is available, and if not, determining that the satellite-ground communication link is unavailable; and/or
And calculating the allowance of the communication link between the satellite and the ground station according to the cloud cover information and the loss, if the allowance is larger than zero, determining that the communication link between the satellite and the ground station is available, otherwise, determining that the communication link between the satellite and the ground station is available.
8. The method for detecting the communication availability of the satellite-ground laser communication ground station as claimed in claim 1, wherein the weather information, the atmospheric turbulence information and the cloud amount information of the satellite-ground laser communication ground station are obtained based on a dynamic link library of plug-in.
9. The detection method of claim 5, wherein the first and second all-sky images are collected with an angle of view two times or more than a second zenith angle range of the satellite-to-ground laser communication ground station and with a resolution three times or more than an angular resolution corresponding to the second zenith angle of the satellite-to-ground laser communication ground station.
10. A detection device for the communication availability of a satellite-ground laser communication ground station is characterized by comprising:
the information acquisition module is used for acquiring meteorological information, atmospheric turbulence information and cloud cover information of the satellite-ground laser communication ground station; the information acquisition module is constructed by adopting a dynamic link library based on plug-in;
the calculation module is used for calculating the angle and position relation of the satellite relative to the satellite-ground laser communication ground station at each moment and the loss on a link of the satellite and the satellite-ground laser communication ground station;
and the availability analysis module is used for acquiring the corresponding meteorological information and/or the atmospheric turbulence information and/or the cloud cover information and/or the loss based on the angle and position relation corresponding to each moment to determine the availability of the satellite and ground station communication link corresponding to the angle and position relation.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468533A (en) * | 2022-11-10 | 2022-12-13 | 南京英田光学工程股份有限公司 | Rapid orientation device and orientation method for laser communication ground station |
| CN116527135A (en) * | 2023-06-30 | 2023-08-01 | 中国科学院空天信息创新研究院 | Site availability determination method, system, device, electronic equipment and storage medium |
| CN117560638A (en) * | 2024-01-10 | 2024-02-13 | 山东派蒙机电技术有限公司 | Converged communication method, device and equipment applied to mobile terminal communication system |
| CN118018112A (en) * | 2024-04-09 | 2024-05-10 | 中国科学院空天信息创新研究院 | Star-earth laser communication task capability analysis method, device, system and medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160164598A1 (en) * | 2014-12-09 | 2016-06-09 | Hughes Network Systems, Llc | Apparatus and Method for Inline Monitoring of Transmission Signals |
| US20170013587A1 (en) * | 2014-01-22 | 2017-01-12 | Advantech Wireless Ltd. | Method and system for dynamically adjusting communication characteristics of satellite communication links based on weather nowcasting |
| US9954613B1 (en) * | 2014-04-30 | 2018-04-24 | The United States Of America As Represented By The Administrator Of Nasa | Methods and devices for space optical communications using laser beams |
| CN109274420A (en) * | 2018-11-16 | 2019-01-25 | 西安电子科技大学 | A kind of entangled photon pairs transmission rate estimation method for star underground line link |
| CN111049573A (en) * | 2018-10-11 | 2020-04-21 | 爱斯福公司 | OTDR method for identified events |
| CN111829964A (en) * | 2018-12-29 | 2020-10-27 | 长沙天仪空间科技研究院有限公司 | Distributed remote sensing satellite system |
| CN113329467A (en) * | 2021-04-20 | 2021-08-31 | 清华大学 | Satellite data transmission method and system |
| CN113454677A (en) * | 2018-12-29 | 2021-09-28 | 长沙天仪空间科技研究院有限公司 | Remote sensing satellite system |
| CN114710193A (en) * | 2022-03-15 | 2022-07-05 | 中国移动通信有限公司研究院 | Satellite-to-ground link processing method and device and network equipment |
| WO2023052270A1 (en) * | 2021-09-29 | 2023-04-06 | Iceye Oy | Earth monitoring system and method of managing a satellite constellation |
-
2022
- 2022-07-12 CN CN202210817960.1A patent/CN115189762B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170013587A1 (en) * | 2014-01-22 | 2017-01-12 | Advantech Wireless Ltd. | Method and system for dynamically adjusting communication characteristics of satellite communication links based on weather nowcasting |
| US9954613B1 (en) * | 2014-04-30 | 2018-04-24 | The United States Of America As Represented By The Administrator Of Nasa | Methods and devices for space optical communications using laser beams |
| US20160164598A1 (en) * | 2014-12-09 | 2016-06-09 | Hughes Network Systems, Llc | Apparatus and Method for Inline Monitoring of Transmission Signals |
| CN111049573A (en) * | 2018-10-11 | 2020-04-21 | 爱斯福公司 | OTDR method for identified events |
| CN109274420A (en) * | 2018-11-16 | 2019-01-25 | 西安电子科技大学 | A kind of entangled photon pairs transmission rate estimation method for star underground line link |
| CN111829964A (en) * | 2018-12-29 | 2020-10-27 | 长沙天仪空间科技研究院有限公司 | Distributed remote sensing satellite system |
| CN113454677A (en) * | 2018-12-29 | 2021-09-28 | 长沙天仪空间科技研究院有限公司 | Remote sensing satellite system |
| CN113329467A (en) * | 2021-04-20 | 2021-08-31 | 清华大学 | Satellite data transmission method and system |
| WO2023052270A1 (en) * | 2021-09-29 | 2023-04-06 | Iceye Oy | Earth monitoring system and method of managing a satellite constellation |
| CN114710193A (en) * | 2022-03-15 | 2022-07-05 | 中国移动通信有限公司研究院 | Satellite-to-ground link processing method and device and network equipment |
Non-Patent Citations (3)
| Title |
|---|
| 付时尧等人: "光束轨道角动量谱的测量技术研究进展", 红外与激光工程, vol. 50, no. 9, pages 9 - 23 * |
| 娄岩;赵义武;陈纯毅;: "星地链路激光通信地面站址选择及大气影响研究", 激光与光电子学进展, no. 12, pages 106 - 122 * |
| 李念强等人: "Analysis and characterization of chaos generated by free-running and optically injected VCSELs", OPTICS EXPRESS, vol. 26, no. 12, pages 1 - 13 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468533A (en) * | 2022-11-10 | 2022-12-13 | 南京英田光学工程股份有限公司 | Rapid orientation device and orientation method for laser communication ground station |
| CN115468533B (en) * | 2022-11-10 | 2023-02-28 | 南京英田光学工程股份有限公司 | Rapid orientation device and orientation method for laser communication ground station |
| CN116527135A (en) * | 2023-06-30 | 2023-08-01 | 中国科学院空天信息创新研究院 | Site availability determination method, system, device, electronic equipment and storage medium |
| CN116527135B (en) * | 2023-06-30 | 2023-09-12 | 中国科学院空天信息创新研究院 | Site availability determination method, system, device, electronic equipment and storage medium |
| CN117560638A (en) * | 2024-01-10 | 2024-02-13 | 山东派蒙机电技术有限公司 | Converged communication method, device and equipment applied to mobile terminal communication system |
| CN117560638B (en) * | 2024-01-10 | 2024-03-22 | 山东派蒙机电技术有限公司 | Converged communication method, device and equipment applied to mobile terminal communication system |
| CN118018112A (en) * | 2024-04-09 | 2024-05-10 | 中国科学院空天信息创新研究院 | Star-earth laser communication task capability analysis method, device, system and medium |
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