Reconstruction Method of Remote Sensing Satellite Data Receiving System

Abstract

The invention provides a reconstruction method for a remote sensing satellite data receiving system and aims to provide a method for receiving remote sensing satellite data by automatically reconstructing a ground receiving system on the basis of satellite tasks so as to improve the utilization ratio of equipment resources, the reliability of the system and the expandability of the system. According to the technical scheme, the reconstruction method includes the steps that first, a reconfigurable unit is determined, a system framework is established, the system is divided into three levels including radio frequency, intermediate frequency and video frequency, interfaces of all the levels are planned in a unified mode, radio frequency, intermediate frequency and video frequency switching arrays and equipment interconnection are configured, hierarchical description of the satellite tasks and professional capacity of all the equipment is established respectively in an XML language description mode, an antenna, tracking equipment and data recording equipment are determined according to satellite code names, proper demodulation equipment and link equipment are selected on the basis of the satellite task code names, the highest symbol rate of the demodulation equipment and a matched data output mode of the data recording equipment, the complete remote sensing satellite data receiving system is formed through reconstruction, and the satellite tasks can be executed.

Description

technical field [0001] The invention relates to a ground receiving system for remote sensing satellite data mainly used in multi-satellite, multi-antenna, and multi-task environments, and a method for dynamically reconfiguring system equipment according to satellite mission requirements. The design idea can be extended and applied to aerospace measurement and control and satellite Communications and other ground stations. Background technique [0002] With the development of my country's aerospace industry, remote sensing satellite technologies such as earth observation, environmental monitoring, disaster monitoring, and scientific exploration have been widely used in surveying and mapping, land and resources investigation and monitoring, disaster prevention and mitigation, agriculture, forestry and water conservancy, ecological environment, urban construction and planning In fields such as transportation, major national projects, and scientific experiments, satellite remote ...

AI Technical Summary

Problems solved by technology

[0003] 1) The existing remote sensing satellite data receiving system has a single satellite mission and low utilization rate of equipment

[0004] The existing remote sensing satellite data receiving system is mainly designed and constructed for a single or some specific types of satellite missions. The system design goal is to meet the data reception requirements of specific satellite types, and generally does not consider or seldom considers the follow-up satellite missions. Expansion requirements; under normal circumstances, each satellite transits at each ground station about 3 to 4 times a day, and the effective data receiving time of each satellite transit is mostly within 20 minutes. Therefore, for a single satellite mission, the ground The receiving system equipment is in standby state most of the time; this has resulted in the need to continuously build or renovate the ground receiving system for new types of remote sensing satellite data receiving tasks on the one hand, and on the other hand, the existing ground data receiving equipment is vacant for a large amount of time. The situation where the resource utilization rate of the receiving device is not high

[0005] 2) Renovate the existing ground station to adapt to the new mission, the construction period is long and seriously affects the existing satellite mission

[0006] Adding a new satellite data receiving task to the existing remote sensing satellite receiving ground station requires a lot of manpower and material resources to transform the existing system, and the construction period is long, usually at least half a year, which will seriously affect the existing system during the transformation implementation process. Some satellite data receiving missions may even cause the interruption of existing missions, resulting in certain economic losses

[0007] 3) New ground stations will be built in the form of satellite-to-ground support, which will cause repeated investment and waste of resources

[0008] For each new satellite mission, the use of satellite-ground supporting methods to build a new ground data receiving system will result in duplication of investment and waste of resources, and the existing system cannot guarantee subsequent scalability design from the structural design, and the new construction of the receiving system will also It is difficult to connect to the existing system, and cannot realize the sharing of receiving resources of the old and new systems, and cannot improve resource utilization

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