Low-orbit satellite broadcast distribution device, method and system based on task driving and medium

A low-orbit satellite, task-driven technology, applied in the field of satellite data transmission, can solve the problems of broadcasting and distribution of satellite data, and achieve the effects of good task adaptability, high distribution efficiency, and simple engineering implementation

Active Publication Date: 2020-11-17
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This design has carried out the satellite broadcast data reception design of the ground terminal station, and can not solve

Method used

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  • Low-orbit satellite broadcast distribution device, method and system based on task driving and medium
  • Low-orbit satellite broadcast distribution device, method and system based on task driving and medium
  • Low-orbit satellite broadcast distribution device, method and system based on task driving and medium

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Embodiment

[0038] Such as figure 1 As shown, the task-driven low-orbit satellite broadcast distribution design device of the present invention includes a routing unit, a storage unit, a framing unit, an encryption unit, a code scrambling unit, a rate control unit, and a radio frequency processing unit. The routing unit is located on the left side of the storage unit and the framing unit and is connected to the storage unit and the framing unit, the framing unit is located on the right side of the storage unit and is connected to the storage unit, and the encryption unit is located on the right side of the framing unit and connected to the framing unit The frame unit is connected, the encoding and scrambling unit is located on the right side of the encryption unit and connected with the encryption unit, the rate control unit is located at the lower side of the routing unit, framing unit, encryption unit, encoding and scrambling unit and connected with the routing unit, group The frame uni...

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PUM

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Abstract

The invention provides a task-driven low-orbit satellite broadcast distribution device, method and system and a medium. The task-driven low-orbit satellite broadcast distribution device comprises a route selection unit, a storage unit, a framing unit, an encryption unit, a coding scrambling unit, a rate control unit and a radio frequency processing unit. According to the invention, storage playback broadcast or real-time broadcast control can be performed on to-be-distributed data according to the working condition and the receiving capability of a ground terminal in a flying area, and the system has a multi-gear transmission rate adjustable capability, and has the advantages of high distribution efficiency, good task adaptability, compatibility with real-time broadcast, simple engineeringimplementation and the like; reference and basis are provided for future satellite data broadcast distribution design.

Description

technical field [0001] The invention relates to the technical field of satellite data transmission, in particular to a task-driven design device and method for low-orbit satellite broadcast distribution. Background technique [0002] The main task of the satellite data broadcast distribution system is to format, encode, scramble, modulate and amplify the information processed by the satellite after target identification and compression, and broadcast data to the ground multi-user terminals. Through the data broadcast distribution system, the satellite can directly send the small amount of data information that users urgently need to the user terminal through the broadcast distribution link, avoiding the delay caused by traditional transmission links such as satellite-to-ground data transmission and relay data transmission. , Data loss risk. At the same time, the satellite broadcast distribution system can broadcast to multiple terminals in the ground coverage area at the sa...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18523H04B7/18526H04B7/18519Y02D30/70
Inventor 杨帅成飞李侃狄慧游月辉周春
Owner SHANGHAI SATELLITE ENG INST
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