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1、BRITISH STANDARD AEROSPACE SERIES BS Z 6:1998 ISO 14961: 1997 Space data and information transfer systems Parameter value language specification ICS 49.140 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6
2、:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1998 BSI 05-1999 ISBN 0 580 29689 X National foreword This British Standard reproduces verbatim ISO 14961:19
3、97 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee ACE/67, Data and information transfer standards for civil space applications, which has the responsibility to: aid enquirers to understand the text; present to the responsib
4、le international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on reques
5、t to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the
6、 BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summ
7、ary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO title page, page ii, pages 1 to 61 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the i
8、nside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 BSI 05-1999i Contents Page National forewordInside front cover Forewordii
9、1Scope1 2Requirements1 3Revision of publication CCSDS 641.0-B-11 Text of CCSDS 641.0-B-15 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank
10、University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 ii BSI 05-1999 Foreword ISO (the International Organization for Standardiza
11、tion) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be
12、represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International St
13、andards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 14961 was prepared by Technical Committee ISO/TC 20, Aircraft and sp
14、ace vehicles, Subcommittee SC 13, Space data and information transfer systems. Descriptors: Navigation systems, space data systems, data processing, information interchange, telecommunications, data transfer, artificial languages, parameter value language, specifications. Licensed Copy: London South
15、 Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 BSI 05-19991 1 Scope This International Standard specifies the requirements for a parameter value language specification for space data and information transfer systems. 2 Requi
16、rements The requirements are the same as the technical recommendations made in the following publication (reproduced on the following pages), which is adopted as an International Standard: CCSDS 641.0-B-1, May 1992, Recommendation for space data system standards Parameter value language specificatio
17、n. For the purposes of international standardization, the modifications outlined below shall apply to the following pages of publication CCSDS 641.0-B-1. Pages i to iv This part contains information which is relevant to the CCSDS publication only. Page vii Add the following information to reference
18、8: Document CCSDS 301.0-B-2, April 1990 is equivalent to ISO 11104:1991. 3 Revision of publication CCSDS 641.0-B-1 It has been agreed with the Consultative Committee for Space Data Systems that Sub-Committee ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication C
19、CSDS 641.0-B-1. To this end, NASA will act as a liaison body between CCSDS and ISO. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 blank Licensed Copy: London South Bank University, London South Bank Univers
20、ity, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 BSI 05-19993 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: London South Bank University, London South Ban
21、k University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 BSI 05-19995 CCSDS Recommendation: Parameter Value Language Specification Authority This Recommendation reflects the consensus technical agreement of the following member Agencies of the Consultative Committee f
22、or Space Data Systems (CCSDS): British National Space Centre (BNSC)/United Kingdom Canadian Space Agency (CSA)/Canada Centre National DEtudes Spatiales (CNES)/France Deutsche Forschungsanstalt fr Luft und Raumfahrt (DLR)/FRG European Space Agency (ESA)/Europe Instituto de Pesquisas Espaciais (INPE)/
23、Brazil National Aeronautics and Space Administration (NASA)/USA National Space Development Agency of Japan (NASDA)/Japan The following observer Agencies also concur with this Recommendation: Department of Communication/Communications Research Centre (DOC/CRC)/Canada Institute for Space Astronautics
24、and Science (ISAS)/Japan This Recommendation is published and maintained by: CCSDS Secretariat Communications and Data Systems Division, (Code-OS) National Aeronautics and Space Administration Washington, DC 20546, USA Issue:Blue Book, Issue 1 Date:May 1992 Location:CCSDS Panel 2 Workshop Oberpfaffe
25、nhofen, Germany May 1992 Issue 1iMay 1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 6 BSI 05-1999 CCSDS Recommendation: Parameter Value Language Specification Statement of intent The Consultat
26、ive Committee for Space Data Systems (CCSDS) is an organization officially established by the management of member space Agencies. The Committee meets periodically to address data systems problems that are common to all participants, and to formulate sound technical solutions to these problems. Inas
27、much as participation in the CCSDS is completely voluntary, the results of Committee actions are termed Recommendations and are not considered binding on any Agency. This Recommendation is issued by, and represents the consensus of, the CCSDS Plenary body. Agency endorsement of this Recommendation i
28、s entirely voluntary. Endorsement, however, indicates the following understandings: Whenever an Agency establishes a CCSDS-related Standard, this Standard will be in accord with the relevant Recommendation. Establishing such a Standard does not preclude other provisions which an Agency may develop.
29、Whenever an Agency establishes a CCSDS-related Standard, the Agency will provide other CCSDS member Agencies with the following information: The Standard itself. The anticipated date of initial operational capability. The anticipated duration of operational service. Specific service arrangements sha
30、ll be made via memoranda of agreement. Neither this Recommendation nor any ensuing Standard is a substitute for a memorandum of agreement. No later than five years from the date of its issuance, this Recommendation will be reviewed by the CCSDS to determine whether it should: (1) remain in effect wi
31、thout change; (2) be changed to reflect the impact of new technologies, new requirements, or new directions; or, (3) be retired or canceled. Issue 1iiMay 1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS
32、Z 6:1998 BSI 05-19997 CCSDS Recommendation: Parameter Value Language Specification Foreword This document is a technical Recommendation for the specification of the Parameter Value Language (PVL) and has been prepared by the Consultative Committee for Space Data Systems (CCSDS). This Recommendation
33、defines the Parameter Value Language which provides a human readable, machine processable language for naming and expressing data values. It allows implementing organizations within each Agency to proceed coherently with the development of compatibly derived Standards for space data systems and wide
34、ly dispersed data users that are within their cognizance. Derived Agency Standards may implement only a subset of the optional features allowed by the Recommendation and may incorporate features not addressed by the Recommendation. Through the process of normal evolution, it is expected that expansi
35、on, deletion, or modification to this document may occur. This Recommendation is therefore subject to CCSDS document management and change control procedures which are defined in Reference 1. Questions relative to the contents or status of this document should be addressed to the CCSDS Secretariat.
36、Issue 1iiiMay 1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 8 BSI 05-1999 CCSDS Recommendation: Parameter Value Language Specification Document Control DocumentTitleDateStatus/Remarks CCSDS 6
37、41.0-B-1Recommendation for Space Data System Standards: Parameter Value Language, Issue 1 May 1992Current Issue Issue 1ivMay 1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 BSI 05-19999 CCSDS R
38、ecommendation: Parameter Value Language Specification Contents Page Foreword7 References11 1Introduction1 1.1Purpose and Scope1 1.2Applicability1 1.3Recommended Approach to Reading the Document1 1.4Character Set Definitions2 1.4.1PVL Character Set2 1.4.1.1White Space Character Set2 1.4.1.2Reserved C
39、haracter Set2 1.4.1.3Unrestricted Character Set3 1.4.2Comment3 2Overview of the language4 2.1Assignment Statement5 2.1.1Parameter Name6 2.1.2Value6 2.1.2.1Simple Value7 2.1.2.1.1 Numeric7 2.1.2.1.2 String9 2.1.2.1.3 Date/Time Value9 2.1.2.2Set11 2.1.2.3Sequence12 2.1.2.4Units Expression12 2.2Aggrega
40、tion Block13 2.2.1Begin Aggregation Statement14 2.2.2End Aggregation Statement14 2.2.3Aggregation Block Construction Rules15 2.3End Statement16 3Parameter value language formal syntax specification17 3.1Formal Specification17 3.2Reserved Keywords40 Annex A Acronyms and glossary41 Annex B Character d
41、efinitions42 Index44 Issue 1vMay 1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 10 BSI 05-1999 CCSDS Recommendation: Parameter Value Language Specification Page Figure 1-1 Example Structure Di
42、agram2 Figure 2-1 PVL Module Contents Syntax Diagram4 Figure 2-2 White Space/Comment Syntax Diagram4 Figure 2-3 Assignment Statement Syntax Diagram5 Figure 2-4 Statement Delimiter Syntax Diagram5 Figure 2-5 Value Syntax Diagram6 Figure 2-6 Simple Value Syntax Diagram7 Figure 2-7 String Type Syntax D
43、iagram9 Figure 2-8 Date Syntax Diagram10 Figure 2-9 Time Syntax Diagram11 Figure 2-10 Date/Time Syntax Diagram11 Figure 2-11 Set Syntax Diagram12 Figure 2-12 Sequence Syntax Diagram12 Figure 2-13 Units Expression Syntax Diagram13 Figure 2-14 Units Value Syntax Diagram13 Figure 2-15 Aggregation Block
44、 Syntax Diagram13 Figure 2-16 Aggregation Begin Statement Syntax Diagram14 Figure 2-17 End Aggregation Statement Syntax Diagram15 Figure 2-18 End Statement Syntax Diagram16 Table 1-1 Reserved Character Set3 Table 1-2 Unrestricted Character Set3 Issue 1viMay 1992 Licensed Copy: London South Bank Univ
45、ersity, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 BSI 05-199911 CCSDS Recommendation: Parameter Value Language Specification References 1 “Procedures Manual for the Consultative Committee for Space Data Systems”, CCSDS A00.0-Y-4, Yellow
46、Book, Issue 4, Consultative Committee for Space Data Systems, September 1990. 2 ISO 646-1991(E) Information Technology ISO 7-bit coded character set for information interchange, Third Edition, 1991-12-15. 3 ISO 8859-1-1987 Information Processing 8-bit Single-byte coded graphic character set, Part 1:
47、 Latin Alphabet no. 1. 4 ISO 6093-1985(E) Information Processing Representation of numerical values in character strings for information interchange, First Edition, 1985-11-01. 5 ISO/IEC 8824:1990(E) Information Technology Open System Interconnection Specification of Abstract Syntax Notation One (AS
48、N. 1), Second Edition, 1990-12-15. 6 Steedman, Douglas Abstract Syntax Notation One (ASN.1) the Tutorial Reference, Technology Appraisals, London 1990. 7 “Report Concerning Space Data Systems: Parameter Value Language A Tutorial”, CCSDS 641.0-G-1, Consultative Committee for Space Data Systems, Green
49、 Book, Issue 1, May 1992 or later. 8 “Recommendation for Space Data Systems: Time Code Formats”, CCSDS 301.0-B-2, Consultative Committee for Space Data Systems, Blue Book, Issue 2, April 1990 or later. Issue 1viiMay 1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:51:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS Z 6:1998 12 BSI 05-1999 CCSDS Recommendation: Parameter Value Language Specification This pa