Data transmission subsystem based on satellite on-orbit payload data processing

A technology of payload and data transmission, applied in the field of satellite communication data transmission, can solve the problems of low data download efficiency, wrong data, misinterpretation, etc., and achieve the simplification of ground use methods, reduction of data empty frame rate, and improvement of flexibility Effect

Pending Publication Date: 2021-01-05
AEROSPACE DONGFANGHONG SATELLITE
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Problems solved by technology

[0007] The technical problem solved by the present invention is: Aiming at the problems that the traditional data transmission working mode is prone to wrong data, misinterpretation and low data download efficiency in the current prior art, a method based on satellite on-orbit payload data processing is proposed. Data Transmission Subsystem

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  • Data transmission subsystem based on satellite on-orbit payload data processing
  • Data transmission subsystem based on satellite on-orbit payload data processing
  • Data transmission subsystem based on satellite on-orbit payload data processing

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Embodiment Construction

[0032] A data transmission subsystem based on satellite on-orbit payload data processing. It is mainly responsible for receiving and downloading satellite payload data. According to the payload working mode and the location of the ground station, different working modes are selected to record, read and transmit the data. It can realize the distinction between long-term payload payload data and short-term payload payload payload data, and at the same time realize the storage control of the two kinds of data at the same time, such as figure 1 , figure 2 As shown, the working mode mainly includes independent recording and erasing mode, recording direct transmission and playback mode, and the system mainly includes:

[0033] Satellite on-orbit payload data discrimination module, payload data buffer area, data transmission control module, solid-state memory, of which:

[0034] The satellite on-orbit payload data discrimination module discriminates the satellite on-orbit payload d...

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Abstract

A data transmission subsystem based on satellite on-orbit payload data processing comprises a satellite on-orbit payload data discrimination module, a load data cache region, a data transmission control module and a solid-state memory, and adopts independent control of long-term load data and short-term load data through two working modes of the data transmission control module. Long-term and short-term load random state data are emptied, it is ensured that recorded data entering a solid memory are all valid data, the storage efficiency of the solid memory is improved, meanwhile, direct transmission data and playback data are used for sharing channel downloading resources, on-orbit real-time data and historical data can be obtained at the same time, and the flexibility and pertinence of system use are improved.

Description

technical field [0001] The invention relates to a data transmission subsystem based on satellite on-orbit payload data processing, belonging to the field of satellite communication data transmission. Background technique [0002] The data transmission subsystem is mainly responsible for receiving and downloading satellite payload data. When the subsystem is working, it selects different working modes to record, read and transmit the data according to the working mode of the payload and the position of the ground station. The types of on-board loads are mainly divided into long-term loads and short-term loads. Long-term loads work continuously during the entire life cycle of the orbit, and have high requirements for data integrity. Short-term loads are limited by satellite energy allocation or their own special attributes to select phased work, switch on and off Frequent, high data accuracy requirements. [0003] The traditional working mode design is mainly divided into rec...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/0802G06F12/0891H04B7/185
CPCG06F12/0802G06F12/0891H04B7/18515
Inventor 徐健刘志佳王丽丽张可立严林郭琪
Owner AEROSPACE DONGFANGHONG SATELLITE
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