CN116527135B - Site availability determination method, system, device, electronic equipment and storage medium - Google Patents
Site availability determination method, system, device, electronic equipment and storage medium Download PDFInfo
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- CN116527135B CN116527135B CN202310789830.6A CN202310789830A CN116527135B CN 116527135 B CN116527135 B CN 116527135B CN 202310789830 A CN202310789830 A CN 202310789830A CN 116527135 B CN116527135 B CN 116527135B
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- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000013210 evaluation model Methods 0.000 claims abstract description 50
- 238000004590 computer program Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 abstract description 36
- 238000004891 communication Methods 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention provides a method, a system, a device, electronic equipment and a storage medium for determining site availability, which belong to the technical field of laser atmosphere channels and comprise the following steps: acquiring target meteorological parameters and target atmospheric channel parameters of a target laser station site based on the transit information of the satellite to the target laser station site, inputting the target meteorological parameters and the target atmospheric channel parameters to a comprehensive element evaluation model, and acquiring the available condition output by the comprehensive element evaluation model; based on the availability, availability of the target laser site to the satellite is generated. The site availability determination method, the system, the device, the electronic equipment and the storage medium can solve the problem of inaccurate satellite-to-ground laser communication availability calculation caused by the dynamic change of elements influencing the availability and the complex effect of the multiple elements by combining the multi-element satellite-to-ground laser communication availability calculation of the satellite orbit, improve the calculation accuracy, are suitable for various satellite orbits, and provide basis for planning satellite-to-ground laser communication tasks and site selection.
Description
Technical Field
The present invention relates to the field of laser atmospheric channel technologies, and in particular, to a method, a system, an apparatus, an electronic device, and a storage medium for determining availability of a site.
Background
The satellite-ground laser communication availability is affected by the atmospheric channel conditions, and the atmospheric channels and meteorological elements such as precipitation, cloud, atmospheric optical turbulence, temperature, humidity, visibility, wind speed and the like all need to meet certain conditions to ensure that links are communicated, the allowance is sufficient, the error rate is low and the communication quality is good.
At present, the meteorological element considered in the calculation of the satellite-to-ground laser communication availability is the cloud amount, and the daily average value, the month average value and the year average value of the cloud amount are counted, so that the whole-day availability related to the cloud amount is obtained.
However, the method has the defect of larger deviation of calculation results because only a single element and an average value are considered, and the comprehensive influence of multiple elements on the availability and the dynamic characteristics of the meteorological data cannot be represented.
Disclosure of Invention
The site availability determining method, system, device, electronic equipment and storage medium provided by the invention are used for solving the defect of larger calculation result deviation caused by the fact that the meteorological element considered in the prior art is one element of cloud cover and the meteorological data mean value is used, solving the problem of inaccurate calculation of satellite-to-ground laser communication caused by the fact that the element dynamic change affecting the availability and the multi-element effect result are complex, improving the calculation precision, being suitable for various satellite orbits and providing basis for planning, site building and site selection of satellite-to-ground laser communication tasks.
The invention provides a method for determining site availability, which comprises the following steps:
based on the transit information of the satellite to the target laser station site, acquiring the target meteorological parameters and the target atmospheric channel parameters of the target laser station site, wherein the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site;
inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model to acquire the available conditions output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model;
and generating the availability of the target laser station site to the satellite based on the availability condition.
According to the site availability determination method provided by the invention, the transit information comprises the transit time period of the satellite;
before the passing information of the satellite to the target laser station site is obtained, the method further comprises the following steps:
Under the condition that the target laser station site is not put into operation, acquiring the orbit parameters of the satellite and the position information of the target laser station site so as to determine the transit time period of the satellite in a preset time period;
and under the condition that the target laser station site is put into operation, acquiring the transit time period of the satellite in the preset time period.
According to the method for determining the availability of the station address, which is provided by the invention, the target meteorological parameters and the target atmospheric channel parameters of the station address of the target laser station are obtained based on the transit information of the satellite to the station address of the target laser station, and the method comprises the following steps:
acquiring meteorological parameters and channel parameters of a target laser station site within the preset time period;
and determining the target meteorological parameters and the target atmosphere channel parameters in the meteorological parameters and the channel parameters according to the transit time period.
According to the site availability determination method provided by the invention, after the target meteorological parameters and the target atmospheric channel parameters are input into a comprehensive element evaluation model, the comprehensive element evaluation model executes the following steps:
carrying out condition judgment on the target meteorological parameters and the target atmospheric channel parameters by using preset conditions, and determining a judgment result;
Generating the available condition based on the determination result;
the preset conditions include a condition judgment condition, a threshold judgment condition and a multi-element combination judgment condition, and the preset conditions are determined based on system design information of the laser station;
and outputting the available condition.
According to the method for determining the availability of the station address, which is provided by the invention, the availability of the target laser station address to the satellite is generated based on the availability condition, and the method comprises the following steps:
determining the available transit times in the preset time period based on the available conditions;
determining the availability of the target laser station site according to the ratio of the available transit times to the total transit times; the total number of transit times is determined based on the preset time period and the track parameter.
According to the method for determining the availability of the site, when the target laser site is a plurality of laser sites, the method further comprises the following steps:
if the plurality of laser station addresses have available conditions in a preset time period, acquiring the available condition of each station address in the preset time period, and determining a starting station in the plurality of laser station addresses;
Determining the availability of each site traversed by the satellite in all turns based on the starting station and the transit time period of each site within the preset time period;
determining comprehensive available conditions under a plurality of preset circle ranges according to the available conditions of each station address;
and generating the multi-station joint availability of the target laser station site based on all comprehensive availability conditions.
According to the method for determining the site availability, provided by the invention, the method further comprises the following steps:
if at least one laser station address does not have meteorological data and atmospheric channel data in the preset time period, respectively acquiring the available condition of each laser station address in the time period with the meteorological data and the atmospheric channel data;
determining the availability of each laser station site according to the availability of each laser station site;
and generating multi-station joint availability of the target laser station site to the satellite based on the availability of each laser station site.
The invention also provides a station availability determining system, which comprises a collecting device and a laser station, wherein the collecting device is used for collecting weather parameters and atmosphere channel parameters of a target laser station, and the weather parameters and the atmosphere channel parameters are used for determining the target weather parameters and the target atmosphere channel parameters in any station availability determining method;
The laser station is provided with a processor; the system further comprises a memory and a program or instructions stored on the memory and executable on the processor, which when executed by the processor performs any of the site availability determination methods described above.
The invention also provides a station availability determining device, which comprises:
the acquisition module is used for acquiring target meteorological parameters and target atmospheric channel parameters of the target laser station site based on the transit information of the satellite to the target laser station site, and the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site;
the input module is used for inputting the target meteorological parameters and the target atmospheric channel parameters into the comprehensive element evaluation model and obtaining the available condition output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model;
and the generating module is used for generating the availability of the target laser station site to the satellite based on the availability condition.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the site availability determination method as any one of the above when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a site availability determination method as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a site availability determination method as described in any one of the above.
The site availability determination method, the system, the device, the electronic equipment and the storage medium can solve the problem of inaccurate satellite-to-ground laser communication availability calculation caused by the dynamic change of elements influencing the availability and the complex effect of the multiple elements by combining the multi-element satellite-to-ground laser communication availability calculation of the satellite orbit, improve the calculation accuracy, are suitable for various satellite orbits, and provide basis for planning satellite-to-ground laser communication tasks and site selection.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for determining availability of a site according to the present invention;
FIG. 2 is a second flow chart of a method for determining availability of a site according to the present invention;
FIG. 3 is a schematic diagram of a site availability determination system provided by the present invention;
FIG. 4 is a schematic diagram of a site availability determination apparatus provided by the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Because the availability of the atmosphere channel is determined by multiple factors together, the prior art only considers cloud cover, deviation can be brought to a calculation result, the time resolution of the meteorological factors adopted by calculation is too low, and the short-time dynamic change of the meteorological factors is not considered in the calculation of the availability; in the existing scheme, the single weather element judging threshold value is not clear or does not accord with the working capacity of the system, so that the calculation result is not matched with the actual application, in addition, the availability calculation does not consider the transit time of a specific satellite orbit, and the calculation result is only applicable to the geosynchronous orbit satellites which can work all the day.
The following describes a site availability determination method, system, apparatus, electronic device and storage medium provided by an embodiment of the present invention with reference to fig. 1 to 5.
The implementation main body of the method for determining the site availability provided by the embodiment of the invention can be the electronic equipment or a software or a functional module or a functional entity capable of realizing the method for determining the site availability in the electronic equipment, and the electronic equipment in the embodiment of the invention comprises but is not limited to a server in a laser station. The execution body is not limited to the present invention.
Fig. 1 is a schematic flow chart of a method for determining availability of a site according to the present invention, as shown in fig. 1, including but not limited to the following steps:
First, in step S1, based on the transit information of the satellite to the target laser station site, a target weather parameter and a target atmospheric channel parameter of the target laser station site are obtained, where the target weather parameter includes: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site.
The target meteorological parameter and the target atmospheric channel parameter have the characteristic of high space-time resolution, can be meteorological data collected at a certain moment, and can represent dynamic changes of the meteorological data, for example: the cloud is collected at least once for 5-10 minutes.
The laser station of the target laser station site can be an operated laser station or an alternative station site which is not operated; since geosynchronous orbit satellites are continuously operated, satellites in the embodiments of the present invention are mainly non-geosynchronous orbit satellites, such as low orbit satellites, and in the subsequent embodiments of the present invention, the availability of a laser station is evaluated for the transit time of the low orbit satellites is described as an example, which is not considered to limit the scope of the present invention.
The transit information may include: the satellite is in the transit time period of the target laser station site.
And acquiring meteorological parameters and atmospheric channel data of the target laser station site measured in the satellite transit time period, and taking the meteorological parameters and the atmospheric channel data as target meteorological parameters and target atmospheric channel parameters.
Wherein all-weather manual, manual or automated equipment is used to collect high-resolution atmospheric channel parameters, ground meteorological parameters and high-altitude meteorological parameters:
the multi-element weather station measures ground weather parameters such as temperature, wind speed, wind direction, humidity, precipitation amount and air pressure;
for the atmospheric channel parameters, at least one of them is included: the full-sky imaging instrument records full-sky cloud quantity pictures, the differential image motion monitor measures the atmospheric optical turbulence, the visibility measuring instrument measures the visibility, the solar radiometer measures the atmospheric transmittance, and the full-sky background brightness radiometer measures the sky background brightness;
the particle counter is also used to measure air particles as one of the ground meteorological parameters, and the temperature pulser collects the atmospheric refractive index structural constant as part of the ground meteorological parameters and the high air meteorological parameters.
In addition, the high-altitude meteorological parameters can be acquired by adopting a mode that the aircraft is provided with a meteorological sensor.
The time resolution of the automatic device is not lower than the minute level and not more than 1 hour. In order to ensure that the site availability calculation contains seasonal variation characteristics, the data acquisition time is not less than one year, and the longer the acquisition time is, the more reliable the calculation result is.
And the atmospheric channel element and the meteorological element which influence satellite-ground laser communication are substituted into calculation, so that the calculation content is comprehensive, and the calculation result is complete.
Optionally, the transit information includes a transit period of the satellite;
before the passing information of the satellite to the target laser station site is obtained, the method further comprises the following steps:
under the condition that the target laser station site is not put into operation, acquiring the orbit parameters of the satellite and the position information of the target laser station site so as to determine the transit time period of the satellite in a preset time period;
and under the condition that the target laser station site is put into operation, acquiring the transit time period of the satellite in the preset time period.
Wherein the track parameters include: two rows of roots or instantaneous roots; the position information may include longitude and latitude, altitude, etc. of the target laser station site, and may also include longitude and latitude, altitude, azimuth and elevation angle, etc. of the site, the antenna operating period. The method comprises the steps of carrying out a first treatment on the surface of the The preset time period needs to comprise a data acquisition time period, can be flexibly selected according to actual requirements, and generally, the satellite can pass through the target laser station site for many times in the preset time period.
Under the condition that the target laser station site is not put into operation, the transit time period of the satellite to the target laser station site in a preset time period can be calculated according to the two-row number or the instantaneous number of the satellite and the longitude, latitude and altitude of the target laser station site. The transit time of the designated position can be obtained by calculating the transit time of the designated position according to the two-row number or the instantaneous number of the satellite, so that the transit time of any satellite orbit can be obtained, the single-station and multi-station joint availability of any satellite can be calculated, and the requirements of various satellite users can be responded.
Under the condition that the target laser station site is put into operation, the transit time period of the satellite in the preset time period can be directly read.
According to the site availability determination method provided by the invention, the availability calculation is combined with the satellite transit time in consideration of the dynamic characteristics of the atmospheric channel and the weather elements along with the time change, so that the calculation result meets the service requirement better, and a foundation is provided for finding an effective parameter set.
Optionally, the acquiring, based on the transit information of the satellite to the target laser station site, the target meteorological parameter and the target atmospheric channel parameter of the target laser station site includes:
acquiring meteorological parameters and channel parameters of a target laser station site within the preset time period;
And determining the target meteorological parameters and the target atmosphere channel parameters in the meteorological parameters and the channel parameters according to the transit time period.
Acquiring ground meteorological parameters, high-altitude meteorological parameters and target atmospheric channel parameters monitored by a target laser station site within a preset time period; and screening out the parameters acquired in the transit time period from the parameters, and taking the parameters as target meteorological parameters and target atmospheric channel parameters.
If the time resolution of the meteorological parameters and the channel parameter records is higher than that of the transit time period, all data of the transit time period are uniformly considered, and if the time resolution of the meteorological parameters and the channel parameter records is lower than that of the transit time period, the nearest data of the transit time period is selected to serve as the target meteorological parameters and the target atmosphere channel parameters.
According to the site availability determination method provided by the invention, the basis is provided for the availability evaluation of the laser station by screening out the meteorological monitoring parameters during satellite transit.
Further, in step S2, the target meteorological parameters and the target atmospheric channel parameters are input to a comprehensive element evaluation model, and the availability outputted by the comprehensive element evaluation model is obtained; the availability is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model.
The comprehensive element evaluation model comprises judging conditions for each target meteorological parameter and target atmospheric channel parameter and multi-element joint judging conditions, and is used for comprehensively judging the availability of the group of data (the target meteorological parameters and the target atmospheric channel parameters).
Optionally, after inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model, the comprehensive element evaluation model performs the steps of:
carrying out condition judgment on the target meteorological parameters and the target atmospheric channel parameters by using preset conditions, and determining a judgment result;
generating the available condition based on the determination result;
the preset conditions include a condition judgment condition, a threshold judgment condition and a multi-element combination judgment condition, and the preset conditions are determined based on system design information of the laser station;
and outputting the available condition.
And substituting the high-resolution data into the comprehensive element evaluation model after processing.
Because the satellite-to-ground laser communication has high requirements on the atmospheric channel conditions, the ground station needs to comprehensively check the atmospheric channel conditions of the alternative station sites during construction, and the availability is calculated, so that the system can not work due to long-time rainy seasons or cloudiness after the system is built.
The input of the comprehensive element evaluation model is all single-station evaluation elements, including ground meteorological parameters, high-altitude meteorological parameters and atmospheric channel parameters when satellites transit, and specifically comprises the following steps: the method comprises the steps of setting multistage working thresholds for all elements, triggering the threshold levels of variables related to the elements through current values, and comprehensively obtaining the judging results of the available conditions.
The different laser station systems are designed differently, so that the judging conditions and the working threshold values are different, for example, if the maximum wind speed that the laser station system can bear is 20m/s, the working threshold value of the laser station on the wind speed is 20m/s, and the judging conditions on the wind speed can be set to be less than or equal to 20m/s; since the receiving system of the laser station is not waterproof and is provided with a dome, the dome must be covered when it rains, and the collected data is invalid in the case of precipitation, the operating threshold of precipitation is 0, and the determination condition for precipitation is not more than 0.
With the increase of the accumulation of the operation data of the laser station and the increase of the monitoring requirement, the evaluation elements can be newly added in the comprehensive element evaluation model, the sustainable update of the multistage comprehensive judgment threshold value of each element is realized, the availability calculation criterion is tightly combined with the working condition, the system capacity and the like of the receiving system, and the method can adapt to diversified application scenes and system designs and has wider application range.
According to the site availability determination method provided by the invention, the collected parameters are judged through various judging thresholds of the laser station, so that the comprehensive availability condition of each transit is obtained, and a basis is provided for the availability evaluation of the laser station to the satellite.
Further, in step S3, the availability of the target laser site to the satellite is generated based on the availability.
Comprehensively judging the availability of the laser station of the target laser station site to the satellite according to the availability of the parameters in each satellite transit; the availability may be the ratio of the number of times available to all transit times in the case of availability of the parameter at each satellite transit.
Optionally, generating availability of the target laser station site to the satellite based on the availability condition includes:
Determining the available transit times in the preset time period based on the available conditions;
determining the availability of the target laser station site according to the ratio of the available transit times to the total transit times; the total number of transit times is determined based on the preset time period and the track parameter. For example, the number of available passes N for which the availability is determined to be available Can be used Number of available transit times N Can be used And total number of transit times N Total (S) The ratio of (2) is the availability P of the laser station, P=N Can be used /N Total (S) 。
According to the site availability determination method, the problem of inaccurate satellite-to-ground laser communication availability calculation caused by the dynamic change of elements influencing the availability and the complex action result of the multiple elements can be solved by combining the multi-element satellite-to-ground laser communication availability calculation of the satellite orbit, the calculation accuracy is improved, the method is suitable for various satellite orbits, and the basis is provided for planning satellite-to-ground laser communication tasks and building sites.
Optionally, in the case that the target laser station site is a plurality of laser station sites, the method further includes:
if the plurality of laser station addresses have available conditions in a preset time period, acquiring the available condition of each station address in the preset time period, and determining a starting station in the plurality of laser station addresses;
Determining the availability of each site traversed by the satellite in all turns based on the starting station and the transit time period of each site within the preset time period;
determining comprehensive available conditions under a plurality of preset circle ranges according to the available conditions of each station address;
and generating the multi-station joint availability of the target laser station site based on all comprehensive availability conditions.
The multi-station availability combined with the satellite transit time period is calculated on the basis of obtaining the multi-element comprehensive availability of each single station transit time, and the multi-station availability is specifically as follows:
firstly, marking and calculating an initial station, and marking satellite orbits for a circle by the initial station and the satellite around the earth period; wherein the satellite runs for a plurality of turns within a preset time period;
secondly, in a preset time period, inquiring the available condition of each station address in the station addresses where satellites pass through in the same circle;
then, according to the available condition of each station address, the comprehensive available condition of multiple elements of each station address in the preset circle range can be obtained, the multi-station availability judging mode is set to be a configurable form, the preset circle range is generally the same circle or is close to the circle, or other configurable judging conditions, and one station is available under the condition that the circle is recorded as the circle available, and the circle available condition can be judged;
And calculating the available conditions of all preset circle ranges, and obtaining the ratio of the available circle to all circles as the multi-station joint availability.
Optionally, the method further comprises:
if at least one laser station address does not have meteorological data and atmospheric channel data in the preset time period, respectively acquiring the available condition of each laser station address in the time period with the meteorological data and the atmospheric channel data;
determining the availability of each laser station site according to the availability of each laser station site;
and generating multi-station joint availability of the target laser station site to the satellite based on the availability of each laser station site.
If multiple sites cannot acquire meteorological data in the same time period, the availability of site 1, site 2 and … site m can be respectively marked as P1, P2, … and Pm on the basis of multi-element single-site availability calculation combined with satellite transit time, and then the multi-site combined availability P=1- (1-P1) × (1-P2) × (1-Pm) × … × (1-Pm).
According to the site availability determining method provided by the invention, the multi-station joint availability is calculated, so that the single-station and multi-station joint availability can be comprehensively considered under the condition that the single-station availability can not meet the service operation requirement.
Fig. 2 is a second flow chart of a method for determining availability of a site according to the present invention, as shown in fig. 2, including:
first, high-time resolution data is collected for a long time, the collected data including: ground meteorological parameters, high atmospheric meteorological parameters and atmospheric channel parameters;
secondly, processing the acquired data, specifically, under the condition that the target laser station site is not put into operation, calculating the transit time period of the satellite to the target laser station site in a preset time period according to the two-row number or the instantaneous number of the satellite and the longitude, latitude and altitude of the target laser station site; under the condition that the target laser station site is put into operation, the transit time period of the satellite in the preset time period can be directly read.
Acquiring ground meteorological parameters, high-altitude meteorological parameters and target atmospheric channel parameters monitored by a target laser station site within a preset time period; screening out parameters acquired in the transit time period from the parameters, and taking the parameters as target meteorological parameters and target atmospheric channel parameters; if the time resolution of the meteorological parameters and the channel parameter records is higher than that of the transit time period, all data of the transit time period are uniformly considered, and if the time resolution of the meteorological parameters and the channel parameter records is lower than that of the transit time period, the nearest data of the transit time period is selected to serve as the target meteorological parameters and the target atmosphere channel parameters.
Finally, inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model, and outputting a multi-element evaluation result as a single-station available condition by the comprehensive element evaluation model for a single station; and for multiple stations, outputting the multi-element evaluation result of each station by the comprehensive element evaluation model, and marking the number of turns to obtain the multi-station joint availability.
Wherein, the evaluation element can be newly added in the comprehensive element evaluation model, and the multi-stage judgment threshold value of each element can be continuously updated.
According to the site availability determination method provided by the invention, the high-resolution atmosphere channel and the air image data which are monitored for a long time are obtained by combining the multi-element satellite-to-ground laser communication availability calculation of the satellite orbit, a comprehensive element evaluation model is established, each element judgment threshold value is iterated through the updating of the working parameters of the system, the comprehensive element evaluation model is updated, and finally the single-station or multi-station combined availability is obtained.
The site availability determination device provided by the invention is described below, and the site availability determination device described below and the site availability determination method described above can be referred to correspondingly to each other.
FIG. 3 is a schematic structural diagram of a site availability determination system provided by the present invention, and as shown in FIG. 3, the site availability determination system 300 includes an acquisition device 301 and a laser station 302, where the acquisition device 301 is configured to acquire weather parameters and atmospheric channel parameters of a target laser station site, and the weather parameters and the atmospheric channel parameters are used to determine target weather parameters and target atmospheric channel parameters according to any of the foregoing embodiments;
A processor is arranged in the laser station; the system further comprises a memory and a program or instructions stored on the memory and executable on the processor, which when executed by the processor performs the site availability determination method according to any of the embodiments above.
The acquisition device 301 and the laser station 302 can be in communication connection to realize synchronous online data transmission, and the acquisition device 301 can also acquire data offline.
Wherein, collection system can include:
the multi-element weather station is used for measuring ground weather parameters such as temperature, wind speed, wind direction, humidity, precipitation, air pressure and the like;
the full-sky imaging instrument records full-sky cloud quantity pictures, the differential image motion monitor measures the atmospheric optical turbulence, the visibility measuring instrument measures the visibility, the solar radiometer measures the atmospheric transmittance, and the full-sky background brightness radiometer measures the sky background brightness;
the particle counter measures air granularity as one of the ground meteorological parameters, and the temperature pulser collects the atmospheric refractive index structural constant as part of the ground meteorological parameters and the high air meteorological parameters.
The station address availability determining system provided by the invention can solve the problem of inaccurate satellite-to-ground laser communication availability calculation caused by the dynamic change of elements influencing the availability and complex multi-element action results by combining the multi-element satellite-to-ground laser communication availability calculation of the satellite orbit, improves the calculation accuracy, is suitable for various satellite orbits, and provides basis for satellite-to-ground laser communication task planning and station building site selection.
The site availability determination device provided by the invention is described below, and the site availability determination device described below and the site availability determination method described above can be referred to correspondingly to each other.
Fig. 4 is a schematic structural diagram of a site availability determining apparatus provided by the present invention, as shown in fig. 4, including:
an obtaining module 401, configured to obtain, based on the transit information of the satellite to the target laser station site, a target weather parameter and a target atmospheric channel parameter of the target laser station site, where the target weather parameter includes: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site;
an input module 402, configured to input the target meteorological parameter and the target atmospheric channel parameter to a comprehensive element evaluation model, and obtain an available condition output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model;
a generating module 403, configured to generate availability of the target laser station site to the satellite based on the availability.
During operation of the device, the obtaining module 401 obtains a target weather parameter and a target atmospheric channel parameter of the target laser station site based on the transit information of the satellite to the target laser station site, where the target weather parameter includes: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site; the input module 402 inputs the target meteorological parameters and the target atmospheric channel parameters to a comprehensive element evaluation model to obtain the available condition output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model; the generating module 403 generates availability of the target laser station site to the satellite based on the availability.
The station address availability determining device provided by the invention can solve the problem of inaccurate satellite-to-ground laser communication availability calculation caused by the dynamic change of elements influencing the availability and complex multi-element action results by combining the multi-element satellite-to-ground laser communication availability calculation of the satellite orbit, improves the calculation accuracy, is suitable for various satellite orbits, and provides basis for satellite-to-ground laser communication task planning and station building site selection.
Fig. 5 is a schematic structural diagram of an electronic device according to the present invention, and as shown in fig. 5, the electronic device may include: processor 510, communication interface (Communications Interface) 520, memory 530, and communication bus 540, wherein processor 510, communication interface 520, memory 530 complete communication with each other through communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a site availability determination method comprising: based on the transit information of the satellite to the target laser station site, acquiring the target meteorological parameters and the target atmospheric channel parameters of the target laser station site, wherein the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site; inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model to acquire the available conditions output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model; and generating the availability of the target laser station site to the satellite based on the availability condition.
Further, the logic instructions in the memory 530 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the site availability determination method provided by the above methods, the method comprising: based on the transit information of the satellite to the target laser station site, acquiring the target meteorological parameters and the target atmospheric channel parameters of the target laser station site, wherein the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site; inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model to acquire the available conditions output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model; and generating the availability of the target laser station site to the satellite based on the availability condition.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the site availability determination method provided by the above methods, the method comprising: based on the transit information of the satellite to the target laser station site, acquiring the target meteorological parameters and the target atmospheric channel parameters of the target laser station site, wherein the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site; inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model to acquire the available conditions output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model; and generating the availability of the target laser station site to the satellite based on the availability condition.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for determining availability of a site, comprising:
based on the transit information of the satellite to the target laser station site, acquiring the target meteorological parameters and the target atmospheric channel parameters of the target laser station site, wherein the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the target meteorological parameters and the target atmospheric channel parameters are used for representing meteorological data changes of the target laser station site; the transit information includes a transit time period of the satellite;
inputting the target meteorological parameters and the target atmospheric channel parameters into a comprehensive element evaluation model to acquire the available conditions output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model;
the target atmospheric channel parameters include at least one of: visibility measured by a visibility measuring instrument, atmospheric transmittance measured by a solar radiometer and sky background brightness measured by an all-sky background brightness radiometer;
generating availability of the target laser station site to the satellite based on the availability;
In the case where the target laser site is a plurality of laser sites, the method further comprises:
if the plurality of laser station addresses have available conditions in a preset time period, acquiring the available condition of each station address in the preset time period, and determining a starting station in the plurality of laser station addresses;
determining the availability of each site traversed by the satellite in all turns based on the starting station and the transit time period of each site within the preset time period;
determining comprehensive available conditions under a plurality of preset circle ranges according to the available conditions of each station address;
generating multi-station joint availability of the target laser station site based on all comprehensive availability conditions;
wherein after inputting the target meteorological parameters and the target atmospheric channel parameters to a comprehensive element evaluation model, the comprehensive element evaluation model performs the steps of:
carrying out condition judgment on the target meteorological parameters and the target atmospheric channel parameters by using preset conditions, and determining a judgment result;
generating the available condition based on the determination result;
the preset conditions include a condition judgment condition, a threshold judgment condition and a multi-element combination judgment condition, and the preset conditions are determined based on system design information of the laser station;
And outputting the available condition.
2. The site availability determination method according to claim 1, wherein the transit information includes a transit period of the satellite;
before the passing information of the satellite to the target laser station site is obtained, the method further comprises the following steps:
under the condition that the target laser station site is not put into operation, acquiring the orbit parameters of the satellite and the position information of the target laser station site so as to determine the transit time period of the satellite in a preset time period;
and under the condition that the target laser station site is put into operation, acquiring the transit time period of the satellite in the preset time period.
3. The site availability determination method according to claim 2, wherein the acquiring the target weather parameter and the target atmospheric channel parameter of the target laser site based on the satellite-to-target laser site transit information includes:
acquiring meteorological parameters and channel parameters of a target laser station site within the preset time period;
and determining the target meteorological parameters and the target atmosphere channel parameters in the meteorological parameters and the channel parameters according to the transit time period.
4. A site availability determination method according to claim 2 or 3, wherein generating availability of the target laser site to the satellite based on the availability, comprises:
determining the available transit times in the preset time period based on the available conditions;
determining the availability of the target laser station site according to the ratio of the available transit times to the total transit times; the total number of transit times is determined based on the preset time period and the track parameter.
5. The site availability determination method according to claim 1, wherein the method further comprises:
if at least one laser station address does not have meteorological data and atmospheric channel data in the preset time period, respectively acquiring the available condition of each laser station address in the time period with the meteorological data and the atmospheric channel data;
determining the availability of each laser station site according to the availability of each laser station site;
and generating multi-station joint availability of the target laser station site to the satellite based on the availability of each laser station site.
6. A site availability determination system comprising a collection device and a laser station, the collection device being configured to collect weather parameters and atmospheric channel parameters for a target laser site, the weather parameters and the atmospheric channel parameters being configured to determine target weather parameters and target atmospheric channel parameters in the site availability determination method according to any one of claims 1-5;
the laser station is provided with a processor; further comprising a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor performs the site availability determination method of any one of claims 1-5.
7. A site availability determination apparatus, comprising:
the acquisition module is used for acquiring target meteorological parameters and target atmospheric channel parameters of the target laser station site based on the transit information of the satellite to the target laser station site, and the target meteorological parameters comprise: ground meteorological parameters and high altitude meteorological parameters; the transit information includes a transit time period of the satellite;
the input module is used for inputting the target meteorological parameters and the target atmospheric channel parameters into the comprehensive element evaluation model and obtaining the available condition output by the comprehensive element evaluation model; the usable condition is obtained by judging the conditions of the target meteorological parameters and the target atmospheric channel parameters by the comprehensive element evaluation model; the target atmospheric channel parameters include at least one of: visibility measured by a visibility measuring instrument, atmospheric transmittance measured by a solar radiometer and sky background brightness measured by an all-sky background brightness radiometer;
The generation module is used for generating the availability of the target laser station site to the satellite based on the availability condition;
in the case where the target laser site is a plurality of laser sites, the apparatus is further configured to:
if the plurality of laser station addresses have available conditions in a preset time period, acquiring the available condition of each station address in the preset time period, and determining a starting station in the plurality of laser station addresses;
determining the availability of each site traversed by the satellite in all turns based on the starting station and the transit time period of each site within the preset time period;
determining comprehensive available conditions under a plurality of preset circle ranges according to the available conditions of each station address;
generating multi-station joint availability of the target laser station site based on all comprehensive availability conditions;
wherein after inputting the target meteorological parameters and the target atmospheric channel parameters to a comprehensive element evaluation model, the comprehensive element evaluation model performs the steps of:
carrying out condition judgment on the target meteorological parameters and the target atmospheric channel parameters by using preset conditions, and determining a judgment result;
Generating the available condition based on the determination result;
the preset conditions include a condition judgment condition, a threshold judgment condition and a multi-element combination judgment condition, and the preset conditions are determined based on system design information of the laser station;
and outputting the available condition.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the site availability determination method of any one of claims 1-5 when the program is executed by the processor.
9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the site availability determination method according to any of claims 1-5.
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