文件名称:
Galileo System Signal Draft Standard
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文件大小: 1mb
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上传时间: 2009-07-10
详细说明： The Galileo Open Service Signal In Space Interface Control Document Draft 1 (OS SIS ICD Draft 1) and the information contained herein is made available to the public by the European GNSS Supervisory Authority (GSA) for information, standardization, research and development purposes. The OS SIS ICD Draft 1 provides an overview of the Galileo system, the signal-in-space radio frequency characteristics, the characteristics of the spreading codes, the message structures and the characteristics of the navigation message data contents. The OS SIS ICD Draft 1 is an update of the OS SIS ICD Draft 0 document published in May 2006 by the Galileo Joint Undertaking on its website. The main updates brought to this document are: * The Multiplex Binary Offset Carrier (MBOC) modulation has replaced the BOC(1,1) modulation for the Galileo E1 signal according to the recommendation of the GPS-Galileo Working Group on Compatibility and Interoperability operating under the aegis of the EU-US Agreement on the promotion, provision and use of Galileo and GPS satellite-based navigation systems and related applications of 26 June 2004. * The structure of the Search and Rescue (SAR) data in the Galileo E1 signal is included. The Galileo SAR service provides enhanced distress localisation and call features for the provision of an SAR service interoperable with the COSPAS-SARSAT system. The present document is a draft, which is subject to modification, update, and variations. ...展开收缩
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