Accuracy Improvement Technique for Timing Application of LORAN-C Signal
Accuracy Improvement Technique for Timing Application of LORAN-C Signal
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DOI：
10.1109/cpem.2010.5544522
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发表时间：
2010-06
影响因子：
5.6
通讯作者：
Sung-hoon Yang;Chang-Bok Lee;Young Kyu Lee;Jong Koo Lee;Young Jae Kim;Sang Jeong Lee
中科院分区：
文献类型：
--
作者：
Sung-hoon Yang;Chang-Bok Lee;Young Kyu Lee;Jong Koo Lee;Young Jae Kim;Sang Jeong Lee
本文提出了一种通过补偿日变化来提高远程导航（LORAN）系统在精确授时领域性能的方法。利用LORAN-C与有/无湿度温度数据的相关性，可以有效减小LORAN-C授时数据的日变化。为了提高定时精度，我们估计了相关值，并利用估计值补偿了日变化。观察到，当平滑间隔大于30 min时，在均方根值方面可以实现30%以上的性能提升。
In this paper, we describe a performance improvement method of the long-range navigation (LORAN) system in the field of the accurate timing applications by compensating diurnal variations. The diurnal variations in the received LORAN-C timing data can be effectively reduced by using the correlation between the LORAN-C and the temperature with/without humidity data. For achieving the timing accuracy improvement, we estimated the correlation values, and by using the estimated values, we compensated the diurnal variations. It is observed that more than 30% performance improvement in the aspect of RMS values can be achieved when the smoothing intervals are more than 30 min.