IEEE
Standards
documents are developed within the IEEE Societies and the Standards Coordinating Committees of the
IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through a consensus develop-
ment process, approved by the American National Standards Institute, which brings together volunteers representing varied
viewpoints and interests to achieve the final product. Volunteers are not necessarily members of the Institute and serve
without compensation. While the IEEE administers the process and establishes rules to promote fairness in the consensus
development process, the IEEE does not independently evaluate, test, or verify the accuracy of any of the information con-
tained in its standards.
Use of an IEEE Standard is wholly voluntary. The IEEE disclaims liability for any personal injury, property or other dam-
age, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting
from the publication, use of, or reliance upon this, or any other IEEE Standard document.
The IEEE does not warrant or represent the accuracy or content of the material contained herein, and expressly disclaims
any express or implied warranty, including any implied warranty of merchantability or fitness for a specific purpose, or that
the use of the material contained herein is free from patent infringement. IEEE Standards documents are supplied “AS IS.”
The existence of an IEEE Standard does not imply that there are no other ways to produce, test, measure, purchase, market,
or provide other goods and services related to the scope of the IEEE Standard. Furthermore, the viewpoint expressed at the
time a standard is approved and issued is subject to change brought about through developments in the state of the art and
comments received from users of the standard. Every IEEE Standard is subjected to review at least every five years for revi-
sion or reaffirmation. When a document is more than five years old and has not been reaffirmed, it is reasonable to conclude
that its contents, although still of some value, do not wholly reflect the present state of the art. Users are cautioned to check
to determine that they have the latest edition of any IEEE Standard.
In publishing and making this document available, the IEEE is not suggesting or rendering professional or other services
for, or on behalf of, any person or entity. Nor is the IEEE undertaking to perform any duty owed by any other person or
entity to another. Any person utilizing this, and any other IEEE Standards document, should rely upon the advice of a com-
petent professional in determining the exercise of reasonable care in any given circumstances.
Interpretations: Occasionally questions may arise regarding the meaning of portions of standards as they relate to specific
applications. When the need for interpretations is brought to the attention of IEEE, the Institute will initiate action to prepare
appropriate responses. Since IEEE Standards represent a consensus of concerned interests, it is important to ensure that any
interpretation has also received the concurrence of a balance of interests. For this reason, IEEE and the members of its soci-
eties and Standards Coordinating Committees are not able to provide an instant response to interpretation requests except in
those cases where the matter has previously received formal consideration. At lectures, symposia, seminars, or educational
courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered
the personal views of that individual rather than the formal position, explanation, or interpretation of the IEEE. Current in-
terpretations can be accessed at the following URL: http://standards.ieee.org/reading/ieee/interp/index.html.
Errata, if any, for this and all other standards can be accessed at the following URL: http://standards.ieee.org/reading/ieee/
updates/errata/index.html. Users are encouraged to check this URL for errata periodically.
Comments for revision of IEEE Standards are welcome from any interested party, regardless of membership affiliation with
IEEE. Suggestions for changes in documents should be in the form of a proposed change of text, together with appropriate
supporting comments. Comments on standards and requests for interpretations should be addressed to:
Secretary, IEEE-SA Standards Board
445 Hoes Lane
P.O. Box 1331
Piscataway, NJ 08855-1331USA
Authorization to photocopy portions of any individual standard for internal or personal use is granted by the Institute of
Electrical and Electronics Engineers, Inc., provided that the appropriate fee is paid to Copyright Clearance Center. To
arrange for payment of licensing fee, please contact Copyright Clearance Center, Customer Service, 222 Rosewood Drive,
Danvers, MA 01923 USA; +1 978 750 8400. Permission to photocopy portions of any individual standard for educational
classroom use can also be obtained through the Copyright Clearance Center.
NOTE−Attention is called to the possibility that implementation of this standard may require use of subject
matter covered by patent rights. By publication of this standard, no position is taken with respect to the exist-
ence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying
patents for which a license may be required by an IEEE standard or for conducting inquiries into the legal valid-
ity or scope of those patents that are brought to its attention.
laoyaowst2014-04-24文档整理十分好，辛苦楼主了
ninaforc2016-05-28英文的，到处都下得到，居然10个积分，说全文字文档，误导！
kacakaca-gogogo2015-09-18很好，刚好是我需要的
