31 January 2013 Low frequency time-code time service method based on frequency sharing
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Proceedings Volume 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation; 875909 (2013) https://doi.org/10.1117/12.2014897
Event: International Symposium on Precision Engineering Measurement and Instrumentation 2012, 2012, Chengdu, China
Abstract
Low frequency time-code timing service is an important mode in the modern timing system. Low frequency time-code timing radio station (BPC) is built by National Time Service Center in China. Based on the modern signal characteristic of BPC, a new timing method based on frequency sharing is presented, which is the additional spread spectrum modulation timing method in idle carrier wave of BPC. The rationale of the additional spread spectrum modulation timing method in BPC is researched. The performance of the method is analyzed. The research results indicate that the coverage of low frequency signal can be enlarged by the additional spread spectrum modulation timing method, and the timing precision of BPC will be enhanced. So low frequency time-code timing service can be used broadly.
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Ping Feng, Zhiyong Zhang, Guichen Wu, Yan Bai, Xiaofeng Ding, "Low frequency time-code time service method based on frequency sharing", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 875909 (31 January 2013); doi: 10.1117/12.2014897; https://doi.org/10.1117/12.2014897
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