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Task-driven low-orbit satellite broadcast distribution device, method, system and medium

A low-orbit satellite, mission-driven technology, applied in the field of satellite data transmission, can solve the problem of satellite data broadcast distribution, etc., and achieve the effects of good mission adaptability, compatibility with real-time broadcast, and simple engineering implementation.

Active Publication Date: 2022-06-03
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 the problem that the present invention proposes to carry out satellite data broadcast distribution for mission requirements

Method used

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  • Task-driven low-orbit satellite broadcast distribution device, method, system and medium
  • Task-driven low-orbit satellite broadcast distribution device, method, system and medium
  • Task-driven low-orbit satellite broadcast distribution device, method, system and medium

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Embodiment

[0049] Step 3, the design rate grading control mode.

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Abstract

The present invention provides a task-driven low-orbit satellite broadcast distribution device, method, system and medium, including: a routing unit, a storage unit, a framing unit, an encryption unit, a coding and scrambling unit, a rate control unit, and a radio frequency processing unit unit. According to the working condition and receiving ability of the ground terminal in the flying area, the present invention can store and play back the broadcast or real-time broadcast control of the data to be distributed, and at the same time have the ability to adjust the multi-level transmission rate, and has high distribution efficiency, good task adaptability, and compatibility with real-time broadcasting , The advantages of simple engineering realization, etc., provide reference and basis for the design of satellite data broadcasting distribution in the future.

Description

Mission-driven low-orbit satellite broadcast distribution device, method, system and medium technical field The present invention relates to satellite data transmission technology field, particularly, relate to a kind of low-orbit satellite based on mission-driven Broadcast distribution design apparatus and method. Background technique The main task of the satellite data broadcasting distribution system is to process the information of the satellite through target identification, compression, etc. Line formatting, coding, scrambling, modulation and power amplification, to broadcast data to terrestrial multi-user terminals. via data broadcasting The satellite can send the small amount of data urgently needed by the user to the user terminal directly through the broadcast distribution link, avoiding the need for It eliminates the delay and data loss risks caused by traditional transmission links such as satellite-to-ground data transmission and relay data transmission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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