Satellite load design method based on communication demand space-time characteristic analysis

Abstract

The invention discloses a satellite load design method based on communication demand space-time characteristic analysis. The method comprises the following steps: carrying out space-time characteristic analysis on communication demands of different industries; integrating the time-space characteristic analysis results of the communication requirements of the industries to obtain the time-space characteristic analysis result of the overall communication requirements; based on the communication service providing capability of the existing satellite and the time-space characteristic analysis result of the overall communication demand, determining an area in which the communication demand is not satisfied; determining the number of satellites to be designed according to the total number of unsatisfied communication requirements; and determining the beam coverage range, beam coverage intensity and beam coverage shape of the to-be-designed satellite according to the area and the unsatisfied degree of the communication demand thereof. By applying the method, the rationality and effectiveness of a satellite load design scheme can be further improved, so that the satellite to be designed can better meet communication requirements.

Description

Technical Field

[0001] This invention relates to the field of satellite communication technology, and in particular to a satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements. Background Technology

[0002] Satellite internet is an internet built upon satellite communication systems. It involves launching a number of satellites to form a large-scale network, thus covering the globe and constructing a large satellite system capable of real-time information processing. It is a new type of network capable of providing broadband internet access services to air, space, and sea. Compared to traditional terrestrial internet, satellite internet has advantages such as wide coverage, high transmission speed, and strong anti-interference capabilities, providing high-speed and stable internet services to remote areas, oceans, and aviation regions that are difficult to access via traditional networks.

[0003] With the development of satellite communication technology, the reduction in satellite manufacturing and launch costs, and the implementation of supportive policies from various parties, the satellite internet industry has ushered in a new peak period. According to the latest data from UCS, there are currently 6,718 satellites in orbit globally, of which nearly 500 are high-orbit communication satellites. High-orbit communication satellites have high orbital altitudes and large single-satellite coverage areas; theoretically, three geostationary orbit satellites can achieve coverage of all regions except the North and South Poles. Currently, through multiplexing, isolation, and beamforming techniques, more than 3,500 high-orbit communication satellite beams of various frequency bands are available for service.

[0004] The payload of a communication satellite mainly consists of two parts: antennas and transponders, used to receive and relay communication signals. The development of communication satellite technology is largely reflected in changes to the payload, generally showing a trend of increased communication capacity, increased number of transponders, application of multi-band and multi-beam antennas, and extended service life. Unlike terrestrial network construction, satellites typically remain in orbit for more than 15 years after launch. During this period, the satellite's payload capabilities, such as coverage area, signal strength, and energy distribution characteristics, are difficult to adjust over time.

[0005] Currently, satellite planning and payload capacity design rely primarily on expert experience and qualitative assessments, resulting in insufficient alignment with actual communication needs. However, with the development of communications and the internet, it is necessary to closely couple satellite payload design with ground-based communication requirements to form an integrated space-ground system design capability. This will allow for accurate understanding of demand trends and the rational and effective planning, design, and operation of satellite constellations to better meet communication needs. Summary of the Invention

[0006] In view of this, the purpose of this invention is to propose a satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements, which can further improve the rationality and effectiveness of satellite payload design schemes, so that subsequent satellites to be launched can better meet communication requirements.

[0007] To achieve the above objectives, this invention provides a satellite design method based on spatiotemporal characteristic analysis of communication requirements, comprising:

[0008] Spatiotemporal characteristics analysis of communication needs in different industries;

[0009] By combining the spatiotemporal characteristics analysis results of communication needs from various industries, the spatiotemporal characteristics analysis results of overall communication needs are obtained.

[0010] Based on the analysis results of the spatiotemporal characteristics of the existing satellite communication service capabilities and the overall communication demand, areas where communication demand is not met are identified.

[0011] The number of satellites to be designed is determined based on the total amount of unmet communication needs;

[0012] Based on the region and the degree to which its communication needs are not met, the beam coverage range, beam coverage intensity, and beam coverage shape of the satellite to be designed are determined.

[0013] Preferably, the spatiotemporal characteristic analysis of communication needs in different industries specifically includes:

[0014] Determine the spatiotemporal distribution characteristics of a single industry;

[0015] Conduct multi-dimensional user profile analysis within a single industry to obtain the potential demand characteristics of different user groups and different business types;

[0016] Based on the profile analysis results, communication demand mapping is performed to obtain the spatiotemporal characteristics analysis results of communication demand for different profiles in the industry.

[0017] By combining the spatiotemporal characteristics analysis results of communication needs from different profiles within a single industry, the spatiotemporal characteristics analysis results of communication needs for that industry are obtained.

[0018] Preferably, the spatiotemporal characteristic analysis of communication needs in different industries further includes:

[0019] To assess and forecast changes in communication needs of a single industry over the next 5-10 years;

[0020] The predicted changes in communication demand over the next 5-10 years are overlaid onto the communication demand of the industry to perform spatiotemporal characteristic analysis, and the results are used as the final spatiotemporal characteristic analysis results for the communication demand of the industry.

[0021] Preferably, the industries specifically include four categories: aviation, maritime, emergency response, and Internet of Things.

[0022] Preferably, the spatiotemporal characteristic analysis results of the integrated communication needs across various industries are used to obtain the overall spatiotemporal characteristic analysis results of communication needs, specifically including:

[0023] Based on overlay analysis, we can assess the spatiotemporal characteristics and communication requirements of integrated industries. Wherein, TD represents the spatiotemporal characteristics analysis result of overall communication demand; β p Let D be the weight of the p-th industry obtained based on the fuzzy comprehensive evaluation model. p The spatiotemporal characteristics analysis results of the communication needs of the p-th industry are presented.

[0024] Preferably, determining the number of satellites to be designed based on the total amount of unmet communication demands specifically includes:

[0025] Based on the total amount of unmet communication needs, determine the specifications and quantity of the repeaters to be designed;

[0026] The type and number of satellites to be designed are determined based on the number of transponders and the capabilities of the satellite platform.

[0027] Preferably, the step of determining the beam coverage range, beam coverage strength, and beam coverage shape of each satellite to be designed based on the identified areas where communication needs cannot be met specifically includes:

[0028] For areas where communication needs are largely unmet, the satellites to be deployed will be designed to provide high-intensity and concentrated beam coverage.

[0029] For areas where communication needs are not fully met, the design of the satellites to be deployed should be sufficient to provide beam coverage.

[0030] The present invention also provides a computer device, the computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-described satellite payload design method based on spatiotemporal characteristic analysis of communication requirements.

[0031] The present invention also provides a computer-readable storage medium storing a computer program that can be executed by at least one processor to perform the steps of the satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements described above.

[0032] In this invention, the spatiotemporal characteristics of communication needs across different industries are analyzed. The spatiotemporal characteristics of these industries are then synthesized to obtain an overall spatiotemporal characteristics analysis of communication needs. Based on the existing satellite's ability to provide communication services and the overall spatiotemporal characteristics analysis of these needs, regions where communication needs are not met are identified. The total number of unmet communication needs is then determined, and the number of satellites to be designed is determined based on the number of regions and the degree to which their communication needs are not met. Finally, the beam coverage range, beam coverage strength, and beam coverage shape of the satellites to be designed are determined. This allows for the design of a reasonable and effective number of communication satellites and their payload capacity to better meet the diverse spatiotemporal characteristics of communication needs across various industries on the ground.

[0033] Even better, it is possible to assess and predict the changes in communication demand for a single industry over the next 5-10 years, and then overlay the predicted changes in communication demand over the next 5-10 years onto the spatiotemporal characteristics analysis results of the communication demand for that industry as described above. This final spatiotemporal characteristics analysis result of the communication demand for that industry can be applied to the subsequent satellite planning and design process, so that after the deployment of communication satellites, not only the current communication demand can be met, but also the communication demand for the next 5-10 years can be met as much as possible. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A flowchart illustrating a satellite payload design method based on spatiotemporal characteristic analysis of communication requirements, provided as an embodiment of the present invention;

[0036] Figure 2 A flowchart illustrating a method for analyzing the spatiotemporal characteristics of communication needs in a single industry, as provided in an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of a satellite payload design method based on spatiotemporal characteristic analysis of communication requirements provided in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of a computer device hardware structure provided in an embodiment of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0040] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The inventors of this invention have noticed that different industries have different communication needs and patterns in different times and spaces; for example, the communication needs of the aviation industry have different time and space characteristics than those of the Internet of Things industry. Therefore, how to design the number and payload capacity of the communication satellites to be deployed in a reasonable and effective manner to meet the communication needs of various industries on the ground with different time and space characteristics is an urgent problem to be solved.

[0042] Based on the above analysis, the technical solution of this invention performs spatiotemporal characteristic analysis on the communication needs of different industries; by combining the spatiotemporal characteristic analysis results of the communication needs of various industries, a spatiotemporal characteristic analysis result of the overall communication needs is obtained; based on the existing satellite's ability to provide communication services and the spatiotemporal characteristic analysis result of the overall communication needs, areas where communication needs are not met are identified; based on the total amount of unmet communication needs, the number of satellites to be designed is determined; and based on the areas and the degree to which communication needs are not met, the beam coverage range, beam coverage intensity, and beam coverage shape of the satellites to be designed are determined. Thus, a reasonable and effective number of communication satellites and their payload capacity can be designed to better meet the communication needs of various industries with different spatiotemporal characteristics.

[0043] Even better, it is possible to assess and predict the changes in communication demand for a single industry over the next 5-10 years, and then overlay the predicted changes in communication demand over the next 5-10 years onto the spatiotemporal characteristics analysis results of the communication demand for that industry as described above. This final spatiotemporal characteristics analysis result of the communication demand for that industry can be applied to the subsequent satellite planning and design process, so that after the deployment of communication satellites, not only the current communication demand can be met, but also the communication demand for the next 5-10 years can be met as much as possible.

[0044] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] This invention provides a satellite payload design method based on spatiotemporal characteristic analysis of communication requirements, the specific process of which is as follows: Figure 1 As shown, it includes the following steps:

[0046] Step S101: Perform spatiotemporal characteristic analysis on the communication needs of different industries;

[0047] Specifically, for various industries with communication needs on the ground, such as aviation, maritime, emergency response, and Internet of Things, this step involves analyzing the spatiotemporal characteristics of the communication needs of each industry.

[0048] The specific methodology and process for analyzing the spatiotemporal characteristics of communication needs within a single industry are as follows: Figure 2 As shown, it includes the following sub-steps:

[0049] Sub-step S201: Determine the spatiotemporal characteristics of spatial information changes in a single industry;

[0050] In this sub-step, when performing spatiotemporal characteristic analysis on a single industry, spatiotemporal cubes can be created based on the industry's business characteristics, such as those of aviation, maritime, emergency response, and IoT industries. These cubes are based on processed industry vector data and the spatial information is analyzed to determine whether it changes over time, thus creating spatiotemporal cubes of actual locations or location aggregation points. Specifically, aviation corresponds to high-speed, continuously time-varying services; maritime to low-speed, continuously time-varying services; emergency response to temporary, sporadic, and location-determined services; and IoT to routine data transmission services. The spatiotemporal step size is aligned and the spatiotemporal scale is set according to the data status, enabling the capture of the spatiotemporal distribution characteristics and patterns of a single industry. These spatiotemporal characteristics are then visualized using a Geographic Information System (GIS) engine and Business Intelligence (BI) charts.

[0051] The spatiotemporal cube can be represented as ΔC = ΔS × ΔT, where ΔT is the time segment and ΔS is the spatial segment. The spatiotemporal characteristic function of the spatial information change in the industry can be expressed as... Where map represents a geographic raster base map based on a GIS engine, with a resolution of 30m.

[0052] Sub-step S202: Conduct multi-dimensional user profile analysis for a single industry to obtain the potential demand characteristics of different business attributes and user groups;

[0053] Specifically, based on profiling analysis algorithms, profiling is constructed for the business attributes and user groups of the industry, encompassing multiple dimensions such as the characteristics, preferences, behaviors, needs, and values ​​of potential users. This enables fine-grained evaluation of industry applications and yields the spatiotemporal characteristics of spatial information changes among different user groups based on the industry's business attributes: V = f(x1, x2, ..., x...). m ;y1, y2, ..., y n ); where f is the user group size estimation function based on decision tree, V is the user group size, x1, x2, ..., x m The business attribute classification dimensions for the industry include airlines, aircraft types, takeoff and landing times, and airports; y1, y2, ..., y n Categorize user groups by dimensions such as age, gender, education level, and occupation.

[0054] Different user profiles can reflect different potential communication needs. For example, in the aviation industry, different aircraft types mean different passenger volumes, and flights with higher passenger volumes usually have greater communication needs. Different routes will result in different flight durations and takeoff and landing times, and flights with longer flight times outside of rest periods usually have greater communication needs. In addition, different characteristics of user groups in user profiles, such as different age groups, occupations, and the number of people traveling together, often reflect different communication needs. Therefore, in this step, we construct corresponding spatiotemporal characteristics of spatial information changes for different user profiles. The industry spatiotemporal characteristic function of different user profiles can be expressed as follows:

[0055] Sub-step S203: Based on the profile analysis results, perform communication demand mapping to obtain the spatiotemporal characteristic analysis results of the communication demands of different user profiles in the industry, and then obtain the spatiotemporal characteristic analysis results of the communication demands of the industry.

[0056] Specifically, text, voice, images, data, video, and video conferencing are used as the basic communication methods, denoted as M = (m1, m2, m3, m4, m5, m6). Based on the multi-dimensional profile analysis results of industries, a three-level probability estimate P = (p1, p2, p3) is performed on the communication needs of different industries. Here, p1, p2, and p3 represent the probability of a user's communication needs shifting from passive to active use.

[0057] Based on the spatiotemporal characteristic analysis results of communication needs from different user profiles within a single industry, the spatiotemporal characteristic analysis results of communication needs for that industry are obtained as follows: Where, α k V k Let represent the weight and user size corresponding to the k-th user profile group, respectively. The spatiotemporal characteristic function of communication requirements for different user profiles is expressed as follows:

[0058] More preferably, considering that satellites typically remain in orbit for more than 15 years after launch, and that payload capabilities such as coverage, signal strength, and energy distribution characteristics are difficult to adjust over time during this period, this step can also assess and predict the communication needs of a single industry over the next 5-10 years. The predicted changes in communication needs over the next 5-10 years are then superimposed on the spatiotemporal characteristic analysis results of the industry's communication needs obtained through the above steps. This final spatiotemporal characteristic analysis result is applied to subsequent steps for satellite payload design, ensuring that after the communication satellite is launched into orbit, it not only meets current communication needs but also, as far as possible, meets communication needs for the next 5-10 years.

[0059] Specifically, based on the differential ensemble moving average autoregressive model, the assessment and prediction of communication demand changes in a single industry over the next 5-10 years can be carried out through several steps: time series acquisition, preprocessing, model identification, model order determination, parameter estimation, and model validation.

[0060]

[0061] in, For the difference operator, D t D represents the overall communication needs of users in the current year. t-1 D represents the overall communication needs of users in the previous year. t-2 This represents the overall communication needs of users over the previous two years.

[0062] Step S102: Based on the spatiotemporal characteristic analysis results of communication needs from various industries, obtain the spatiotemporal characteristic analysis results of overall communication needs;

[0063] In this step, the spatiotemporal characteristics analysis results of communication needs from various industries are synthesized to obtain the overall spatiotemporal characteristics analysis results of communication needs. Specifically, combined with satellite internet application planning and deployment, a fuzzy comprehensive evaluation model is constructed to achieve weighted assessment of communication needs from various industries. Based on this, an overlay analysis is used to assess the spatiotemporal characteristics and communication needs of the integrated industries. Among them, TD represents the spatiotemporal characteristic analysis results of the comprehensive communication needs of various industries, that is, the spatiotemporal characteristic analysis results of the overall communication needs; β p Let D be the weight of the p-th industry obtained based on the fuzzy comprehensive evaluation model. p The spatiotemporal characteristics analysis results of the communication needs of the p-th industry are presented.

[0064] Step S103: Based on the existing satellite's ability to provide communication services and the spatiotemporal characteristics analysis results of the overall communication demand, identify the areas where communication demand is not met;

[0065] Specifically, for existing satellites capable of providing communication services, the communication service capabilities of the existing satellite fleet are assessed based on primary and secondary dimensions. The primary dimensions include: satellite type, beam type, communication frequency band, transponder resources, effective isotropic radiated power (EIRP) value, receiver system gain / temperature (G) value, network service resource occupancy, and satellite lifetime. The secondary dimensions include: communication angle, terminal aperture, transmit power, link availability, link obstruction, frequency interference, and ground system deployment difficulty. The assessment results may include the potential total communication service provision (PD).

[0066] By comparing the assessed communication service capabilities of existing satellite constellations with the spatiotemporal characteristics analysis results of overall communication needs using a GIS engine, areas where communication needs are not met can be identified; these include areas requiring coverage enhancement. Weak coverage areas and the valueless zone

[0067] Based on the spatial computing capabilities of the GIS engine, satellite screening and capability benchmarking are carried out for global high-orbit satellite operators. This enables the overall service capabilities of different satellite networks of different operators in various regions analyzed. The coverage priority function CP = f(zone, p, network) is obtained for enhanced coverage areas, weak coverage areas, and valueless areas. It is a composite function with the region zone, coverage priority p, and network capability network based on communication capacity, coverage area, and signal strength as input.

[0068] Step S104: Determine the number of satellites to be designed based on the total amount of unmet communication needs;

[0069] In this step, the specifications and quantity of transponders to be designed are determined based on the total amount of unmet communication demands. Then, based on the quantity of transponders, the number of satellites to be designed is determined. Specifically, single transponder bandwidth resources include ten specifications: 54MHz, 72MHz, 96MHz, 120MHz, 132MHz, 154MHz, 207MHz, 220MHz, 340MHz, and 440MHz. Based on the total amount of unmet communication demands, the specifications and quantity of transponders that meet these demands can be determined. Since the number of transponders a single communication satellite can support is limited, after determining the specifications and quantity of transponders to be designed, the number of satellites to be designed to support these transponders can then be determined.

[0070] Step S105: Determine the beam coverage range, beam coverage strength, and beam coverage shape of the satellite to be designed based on the degree of unmet communication needs in the areas where communication needs are not met.

[0071] Specifically, for areas with high unmet communication needs (i.e., areas with communication demands exceeding 300Gbps / day and video applications accounting for more than 20%), the satellites to be deployed should be designed to provide high-intensity and concentrated beam coverage. For areas with low unmet communication needs (i.e., areas with communication demands less than 20Gbps / day), the satellites to be deployed only need to provide beam coverage; beam strength can be appropriately reduced by 1-3dB, beam width can be increased by 0.3-0.8°, and anti-interference capability can be appropriately reduced by 0.5-1.5dB. The payload capacity index mapping function is a combinatorial optimization problem. Given a fixed satellite platform configuration, it is necessary to achieve the overall optimality of the number of transponders, energy consumption, heat dissipation, and coverage efficiency. This is solved using a simulated annealing algorithm. During the solution process, the single-satellite payload capacity and the fleet payload capacity can be iteratively updated to achieve a bilateral match between communication needs and satellite capabilities. The satellite payload design method based on the spatiotemporal characteristics analysis of communication needs described above can also be referenced. Figure 3 The model shown.

[0072] In this invention, the spatiotemporal characteristics of communication needs across different industries are analyzed. The spatiotemporal characteristics of these industries are then synthesized to obtain the overall spatiotemporal characteristics of communication needs. Based on the existing satellite's ability to provide communication services and the overall spatiotemporal characteristics of these needs, regions where communication needs are not met are identified. The total number of unmet communication needs is then determined, and the number of satellites to be designed is determined based on these regions and the degree to which their communication needs are not met. Finally, the beam coverage range, beam coverage strength, and beam coverage shape of the satellites to be designed are determined. This allows for the design of a reasonable and effective number of communication satellites and their payload capacity to better meet the diverse spatiotemporal characteristics of communication needs across various industries on the ground.

[0073] Even better, it is possible to assess and predict the changes in communication demand for a single industry over the next 5-10 years, and then overlay the predicted changes in communication demand over the next 5-10 years onto the spatiotemporal characteristics analysis results of the communication demand for that industry as described above. This final spatiotemporal characteristics analysis result of the communication demand for that industry can be applied to the subsequent satellite planning and design process, so that after the deployment of communication satellites, not only the current communication demand can be met, but also the communication demand for the next 5-10 years can be met as much as possible.

[0074] Figure 4 This illustration schematically shows the hardware architecture of a computer device 1300 for a satellite payload design method based on spatiotemporal characteristic analysis of communication requirements according to an embodiment of this application. In this embodiment, the computer device 1300 is a device capable of automatically performing numerical calculations and / or information processing according to pre-set or stored instructions. For example, it may be a smartphone, tablet computer, laptop computer, desktop computer, rack server, blade server, tower server, or cabinet server (including independent servers or server clusters composed of multiple servers), etc. Figure 4 As shown, the computer device 1300 includes, but is not limited to, at least: a memory 1310, a processor 1320, and a network interface 1330 that can communicate with each other via a system bus. Wherein:

[0075] The memory 1310 includes at least one type of computer-readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 1310 may be an internal storage module of the computer device 1300, such as the hard disk or memory of the computer device 1300. In other embodiments, the memory 1310 may also be an external storage device of the computer device 1300, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. Of course, the memory 1310 may also include both the internal storage module and the external storage device of the computer device 1300. In this embodiment, the memory 1310 is typically used to store the operating system and various application software installed on the computer device 1300, such as program code for a satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements. In addition, the memory 1310 can also be used to temporarily store various types of data that have been output or will be output.

[0076] In some embodiments, processor 1320 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip. Processor 1320 is typically used to control the overall operation of computer device 1300, such as performing control and processing related to data interaction or communication with computer device 1300. In this embodiment, processor 1320 is used to run program code stored in memory 1310 or process data.

[0077] Network interface 1330 may include a wireless network interface or a wired network interface, which is typically used to establish a communication link between computer device 1300 and other computer devices. For example, network interface 1330 is used to connect computer device 1300 to an external terminal via a network, establishing a data transmission channel and communication link between computer device 1300 and the external terminal. The network may be an intranet, the Internet, Global System for Mobile Communication (GSM), Wideband Code Division Multiple Access (WCDMA), 4G network, 5G network, Bluetooth, Wi-Fi, or other wireless or wired networks.

[0078] It should be pointed out that, Figure 4 Only a computer device with components 1310-1330 is shown; however, it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0079] In this embodiment, the satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements stored in the memory 1310 can be further divided into one or more program modules and executed by one or more processors (processor 1320 in this embodiment) to complete the embodiment of this application.

[0080] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0082] Additionally, to simplify the description and discussion, and to avoid obscuring the invention, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the invention, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which the invention will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) are set forth to describe exemplary embodiments of the invention, it will be apparent to those skilled in the art that the invention may be practiced without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0083] Although the invention has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0084] The embodiments of this invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A satellite payload design method based on spatiotemporal characteristic analysis of communication requirements, characterized in that, include: Spatiotemporal characteristics analysis of communication needs in different industries; By combining the spatiotemporal characteristics analysis results of communication needs from various industries, the spatiotemporal characteristics analysis results of overall communication needs are obtained. Based on the analysis results of the spatiotemporal characteristics of the existing satellite communication service capabilities and the overall communication demand, areas where communication demand is not met are identified. The number of satellites to be designed is determined based on the total amount of unmet communication needs; Based on the region and the degree to which its communication needs are not met, the beam coverage range, beam coverage intensity, and beam coverage shape of the satellite to be designed are determined.

2. The method according to claim 1, characterized in that, The spatiotemporal characteristic analysis of communication needs in different industries specifically includes: Determine the spatiotemporal characteristics of spatial information changes in a single industry; Conduct multi-dimensional user profile analysis in a single industry to obtain the spatiotemporal characteristics of spatial information changes among different user groups; Based on the profile analysis results, communication demand mapping is performed to obtain the spatiotemporal characteristics analysis results of communication demand for different user profiles in the industry. By combining the spatiotemporal characteristics analysis results of communication needs of different user profiles in a single industry, the spatiotemporal characteristics analysis results of communication needs in that industry are obtained.

3. The method according to claim 2, characterized in that, The spatiotemporal characteristic analysis of communication needs in different industries also includes: To assess and forecast changes in communication needs of a single industry over the next 5-10 years; The predicted changes in communication demand over the next 5-10 years are overlaid onto the communication demand of the industry to perform spatiotemporal characteristic analysis, and the results are used as the final spatiotemporal characteristic analysis results for the communication demand of the industry.

4. The method according to any one of claims 1-3, characterized in that, The industries mentioned specifically include four categories: aviation, maritime, emergency response, and the Internet of Things.

5. The method according to claim 4, characterized in that, The spatiotemporal characteristic analysis results of the integrated communication needs from various industries yield the overall spatiotemporal characteristic analysis results of communication needs, specifically including: Based on overlay analysis, we can assess the spatiotemporal characteristics and communication requirements of integrated industries. Wherein, TD represents the spatiotemporal characteristics analysis result of overall communication demand; β p Let D be the weight of the p-th industry obtained based on the fuzzy comprehensive evaluation model. p The spatiotemporal characteristics analysis results of the communication needs of the p-th industry are presented.

6. The method according to claim 1, characterized in that, Based on the spatiotemporal characteristic analysis results of the existing satellite communication service capabilities and the overall communication demand, areas where communication demand is not met are identified, specifically including: For existing satellites capable of providing communication services, the communication service capabilities of the existing satellite fleet are assessed based on primary and secondary dimensions. The primary dimensions include: satellite type, beam type, communication frequency band, transponder resources, beam EIRP and G / T values, network service resource occupancy, and satellite lifetime. The secondary dimensions include: communication angle, terminal aperture, transmit power, link availability, link obstruction, frequency interference, and difficulty of ground system deployment. By comparing the assessed communication service capabilities of existing star systems with the spatiotemporal characteristics analysis results of overall communication needs, areas where communication needs are not met can be identified.

7. The method according to claim 1, characterized in that, The determination of the number of satellites to be designed based on the total amount of unmet communication needs specifically includes: Based on the total amount of unmet communication needs, determine the specifications and quantity of the repeaters to be designed; The type and number of satellites to be designed are determined based on the number of transponders and the capabilities of the satellite platform.

8. The method according to claim 1, characterized in that, Based on the identified areas where communication needs cannot be met, the beam coverage range, beam coverage strength, and beam coverage shape of each satellite to be designed are determined, specifically including: For areas where communication needs are largely unmet, the satellites to be deployed will be designed to provide high-intensity and concentrated beam coverage. For areas where communication needs are not fully met, the design of the satellites to be deployed should be sufficient to provide beam coverage.

9. A computer device, the computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that can be executed by at least one processor to perform the steps of the satellite payload design method based on the spatiotemporal characteristics analysis of communication requirements as described in any one of claims 1 to 8.

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