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Data frame format suitable for use in satellite-ground data collection system

A technology for collecting system and satellite data, applied in the field of communication, can solve the problems of inability to realize real-time remote monitoring and response, poor real-time performance, etc., to achieve the effect of improving autonomy and differentiation and maximizing utilization

Active Publication Date: 2020-11-13
SHANGHAI AEROSPACE ELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, my country's meteorology, hydrology, ocean detection, environmental monitoring, scientific and management data, etc. are still restricted by ground network coverage, and the real-time performance is poor, so it is impossible to realize real-time remote monitoring and response

Method used

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  • Data frame format suitable for use in satellite-ground data collection system
  • Data frame format suitable for use in satellite-ground data collection system

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] The invention is based on the data transmission characteristics of the satellite-to-earth data transmission system, and solves the difference and autonomy of the user terminal data volume. The main method is to redefine the format of the satellite-to-ground transmission frame and split the frame composition, including the control segment and the transmission segment. Each user terminal can independently set the satellite-to-ground data transmission rate and the number of users. After the transmission of a single user terminal is completed , the satellite is restored to its original state, which does not affect other users, and a single user can better achieve autonomy and differentiation.

[0023] figure 1 It is a system a...

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Abstract

The embodiment of the invention provides a data frame format suitable for a satellite-ground data collection system. The data frame format is characterized by comprising a control segment and a transmission segment, wherein the control segment sequentially comprises a first guide code, a first ASM and a rate identification; the control segment is used for carrier capture, bit synchronization, frame synchronization and control information acquisition of a receiver; the transmission segment sequentially comprises a second guide code, a second ASM, coded data and an EOT bit; the transmission section is used for controlling synchronization and transmission of user data of the data collection system after switching.

Description

technical field [0001] The invention belongs to the technical field of communication and relates to a data frame format suitable for a satellite-earth data collection system. Background technique [0002] The Data Collecting System (DCS for short) is a short-message satellite communication system whose function is to collect useful information scattered around the world, especially for relevant meteorological and hydrological information in uninhabited areas or oceans. , Marine exploration, environmental monitoring, science and management data and other applications, through satellite collection and reception and forwarded to the corresponding use and management departments, can obtain a large amount of information and data in a short time, is a new type of effective means of real-time data collection . [0003] The DCS system has the characteristics of wide-area coverage and miniaturized terminals, and provides users with services such as short data collection, short data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B7/185
CPCH04L1/0002H04L1/0006H04L1/0011H04B7/18582
Inventor 孙长富李巧玲李长生王著搬
Owner SHANGHAI AEROSPACE ELECTRONICS CO LTD
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