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【英文标准名称】: Space data and information transfer systems - Proximity-1 space link protocol - Coding and synchronization sublayer 【原文标准名称】: 空间数据和信息传输系统.接近1的空间链接协议.编码和同步传输内层 【标准号】: ISO 21459-2006 【标准状态】: 现行 【国别】: 国际 【发布日期】: 2006-07 【实施或试行日期】: 【发布单位】: 国际标准化组织(IX-ISO)【起草单位】: ISO/TC 20【标准类型】: ()【标准水平】: ()【中文主题词】: 传播学;传播方式;数据交换;数据传送;编码;信息交换;信息传递;无线电通信链路;无线电波;无线电通信;航空通讯;航天安全;航天运输;同步;遥测技术【英文主题词】: Communication;Communication processes;Data exchange;Data transfer;Encoding;Information interchange;Information transfer;Radio links;Radio waves;Radiocommunication;Space radiocommunications;Space safety;Space transport;Synchronization;Telemetry【摘要】: Proximity space links are defined to be short-range, bi-directional, fixed or mobile radio links, generally used to communicate among probes, landers, rovers, orbiting constellations, and orbiting relays. These links are characterized by short time delays, moderate (not weak) signals, and short, independent sessions.This International Standard defines the coding and synchronization sublayer of the Proximity-1 space link protocol. It defines the data unit of this sublayer, i.e. the PLTU. It defines the coding and synchronization mechanisms required for cross support. It also specifies the send and receive side functionality of this sublayer. This International Standard does not specify— individual implementations or products,— implementation of service interfaces within real systems,— methods or technologies required to perform the procedures, or— management activities required to configure and control the protocol.The scope and field of application are furthermore detailed in subclauses 1.2 and 1.3 of the enclosed CCSDS publication.【中国标准分类号】: V04【国际标准分类号】: 49_140【页数】: 27P.;A4【正文语种】: 英语
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