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Analysis of Modernization GNSS Navigation Message’s Designing |
Chen Jin-ping Wang Meng-li Qian Shu-guang |
Beijing Global Information Center of Application and Exploitation, Beijing 100094, China |
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Abstract Navigation message is an important component of satellite signal. Its design will not only influence the system’s performances including timeliness, integrality, flexibility, reliability, extendibility, etc., but also user’s use-cost. The design of various navigation messages is analyzed and compared, especially in aspects of data content, coding performance, layout structure and broadcast style of modernization Global Navigation Satellite System (GNSS). It is indicated that the improvements in the design of navigation message will bring improvement of system performance and make the user easy to use. The navigation message design scheme of China COMPASS system is put forward by consulting the message design schemes of modernization GNSS, which are: multi-coding scheme basing error correcting code, checking code and interleaving code; message layout structure of frame and data block together; intercrossed broadcasting style between or among satellites and frequencies.
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Received: 04 June 2010
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Corresponding Authors:
Wang Meng-li
E-mail: compass2020@126.com
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