AIAA S-124-2007 Adaptations and Conversions of CCSDS Space Link Extension Return All Frames Transfer Service《空间数据系统咨询委员会(CCSDS)空间链路扩展全部回程帧传递服务的适应和变换》.pdf
《AIAA S-124-2007 Adaptations and Conversions of CCSDS Space Link Extension Return All Frames Transfer Service《空间数据系统咨询委员会(CCSDS)空间链路扩展全部回程帧传递服务的适应和变换》.pdf》由会员分享,可在线阅读,更多相关《AIAA S-124-2007 Adaptations and Conversions of CCSDS Space Link Extension Return All Frames Transfer Service《空间数据系统咨询委员会(CCSDS)空间链路扩展全部回程帧传递服务的适应和变换》.pdf(30页珍藏版)》请在麦多课文档分享上搜索。
1、 Standard ANSI/AIAA S-124-2007 Adaptations and Conversions of CCSDS Space Link Extension Return All Frames Transfer Service AIAA standards are copyrighted by the American Institute of Aeronautics and Astronautics (AIAA), 1801 Alexander Bell Drive, Reston, VA 20191-4344 USA. All rights reserved. AIAA
2、 grants you a license as follows: The right to download an electronic file of this AIAA standard for storage on one computer for purposes of viewing, and/or printing one copy of the AIAA standard for individual use. Neither the electronic file nor the hard copy print may be reproduced in any way. In
3、 addition, the electronic file may not be distributed elsewhere over computer networks or otherwise. The hard copy print may only be distributed to other employees for their internal use within your organization. ANSI/AIAA S-124-2007 American National Standard Adaptations and Conversions of CCSDS Sp
4、ace Link Extension Return All Frames Transfer Service Sponsored by American Institute of Aeronautics and Astronautics Approved 3 May 2007 American National Standards Institute Abstract This document defines adaptations and conversions of the Consultative Committee for Space Data Systems (CCSDS) stan
5、dard Space Link Extension (SLE) Return All Frames (RAF) telemetry data transfer service. The CCSDS SLE transfer services do not support some legacy command and telemetry data flows that must be accommodated by US civil, military, and commercial space element tracking, telemetry, and control networks
6、 to allow interoperability in support of US Government space operations. Adaptations of RAF by the user and conversions of RAF by the provider provide standardized time-correlated telemetry and command echo services which are not otherwise provided by CCSDS SLE transfer services. Time-correlated tel
7、emetry service supports space elements which use unframed bit streams or bit streams without provider-side frame synchronization. Command echo service supports systems which require an independent check of provider RF equipment. ANSI/AIAA S-124-2007 ii Approval of an American National Standard requi
8、res verification by ANSI that the requirements for due process, consensus, and other criteria have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected int
9、erests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their exis
10、tence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no cir
11、cumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the sec
12、retariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to affirm, revise, or withdraw this standard no
13、 later than five years from the date of approval. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Library of Congress Cataloging-in-Publication Data Adaptations and conversions of CCSDS Space
14、Link Extension Return all Frames transfer service / sponsored by American Institute of Aeronautics and Astronautics. p. cm. Includes bibliographical references. “Approved 3 May 2007.“ “ANSI/AIAA, S-124-2007“ ISBN 978-1-56347-924-3 (hardcopy) - ISBN 978-1-56347-925-0 (electronic) 1. Artificial satell
15、ites in telecommunication-Standards-United States. 2. Data transmission systems-Standards-United States. 3. Consultative Committee for Space Data Systems. I. American Institute of Aeronautics and Astronautics. TK5104.A165 2007 621.3825-dc22 2007013285 Published by American Institute of Aeronautics a
16、nd Astronautics 1801 Alexander Bell Drive, Reston, VA 20191 Copyright 2007 American Institute of Aeronautics and Astronautics All rights reserved No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publish
17、er. Printed in the United States of America American National Standard ANSI/AIAA S-124-2007 iii Contents Foreword.v Introduction vi 1 Scope 1 2 Tailoring 1 3 Applicable Documents . 1 4 Vocabulary 2 4.1 Acronyms and Abbreviated Terms 2 4.2 Terms and Definitions 2 4.3 Nomenclature . 3 4.4 Conventions
18、3 4.4.1 Bit numbering convention 3 4.4.2 Typographic conventions. 4 5 Summary of Functions . 4 5.1 RAF Conversion Functions Performed by the Service Provider 6 5.1.1 Bitstream Blocking Function 6 5.1.2 Ternary Symbol Stream Translation Function 6 5.2 RAF Adaptation Functions Performed by the Service
19、 User. 6 5.2.1 Time Source-Synchronized Bitstream Regeneration Function 6 5.2.2 Delayed Time Source Generation Function 6 5.2.3 Dibit to Ternary Symbol Translation Function. 6 5.2.4 Streaming Ternary Command Echo Buffer Function . 7 5.2.5 Preamble and Postamble Substitution Function. 7 5.2.6 Null Sy
20、mbol Substitution Function. 7 5.2.7 Streaming Binary Command Echo Buffer Function 8 6 Supported Data Flows 8 6.1 Time-correlated Binary Telemetry . 8 6.2 Echo of Streaming Ternary Command Data. 10 6.3 Echo of Streaming Binary Command Data. 10 7 Deviation from Normal CCSDS SLE RAF Service . 13 7.1 RA
21、F-START 13 7.2 RAF-TRANSFER-DATA. 13 7.3 RAF-SYNC-NOTIFY. 14 7.4 RAF-STATUS-REPORT 15 8 RAF Conversion Functions Performed by Service Provider 15 8.1 Bitstream Blocking Function 15 ANSI/AIAA S-124-2007 iv 8.2 Ternary Symbol Stream Translation Function 16 9 RAF Adaptation Functions Performed by Servi
22、ce User. 17 9.1 Time Source-Synchronized Bitstream Regeneration Function 17 9.1.1 Estimated Receipt Time of User Bits 17 9.1.2 Generation of Output Bitstream. 18 9.2 Delayed Time Source Generation Function 19 9.3 Dibit to Ternary Symbol Translation Function. 19 9.4 Streaming Ternary Command Echo Buf
23、fer Function . 19 9.5 Preamble and Postamble Substitution Function. 20 9.6 Null Symbol Substitution Function. 20 9.7 Streaming Binary Command Echo Buffer Function 20 Annex A Informative References 22 Figures Figure 1 Bit Numbering Convention. 4 Figure 2 Context of the RAF Conversion and Adaptation F
24、unctions 5 Figure 3 RAF Conversion and Adaptation Functions Supporting the Time-Correlated Delivery of Binary Telemetry Data . 9 Figure 4 RAF Conversion and Adaptation Functions Supporting the Echo of Streaming Ternary Command Data 11 Figure 5 RAF Conversion and Adaptation Functions Supporting the E
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