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商品コード: RTCM-10403-3

RTCM 10403.3, 2016 Edition

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RTCM 10403.3, 2016 Edition: Differential GNSS (Global Navigation Satellite Systems) Services - Version 3 (PDF/1 User)
出版社/発行元 RTCM
装丁 セキュアPDF
発送予定 2-3営業日以内にご連絡致します

 

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Description

 

This standard (referred to as Version 3) has been developed by RTCM Special Committee 104 as a more efficient alternative to the standards entitled "RTCM Recommended Standards for Differential Recommended Standards for Differential GNSS (Global Navigation Satellite Systems) Service, Version 2.x". (Current version is 2.3, now designated as RTCM 10402.3.) Service providers and vendors represented on the SC104 Committee wanted a new standard that would be more efficient, easy to use, and more easily adaptable to new situations. The main complaint was that the Version 2.x parity scheme, which uses words with 24 bits of data followed by 6 bits of parity, was wasteful of bandwidth. Another complaint was that the parity was not independent from word to word. Still another was that even with so many bits devoted to parity, the actual integrity of the message was not as high as it should be. Plus, 30-bit words are awkward to handle. The new standard, Version 3, is intended to correct these weaknesses.

Unlike Version 2.x, this standard does not include tentative messages. The messages in Version 3 have undergone testing for validity and interoperability, and are considered to be permanent. Amendments to the standard may change the meaning of reserved bits or provide additional clarifying text, but no changes will be made in the data fields. Changes will require new messages to be developed. In addition to the messages described in the current standard, the Committee continues to develop new messages, which are described in separately published amendments, and periodically gathered into a new edition of the standard. RTCM 10403.x for DGNSS services is proving useful in supporting highly accurate differential and kinematic positioning as well as a wide range of navigation applications worldwide.

Note that Version 3 messages are not compatible with Version 2.x. Since many receivers have been designed and programmed for use with Version 2.x messages, RTCM is maintaining both standards 10402.3 and 10403.3 as "current" standards.

 

 

 

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