Accuracy Improvement Technique for Timing Application of LORAN-C Signal

Author

Yang, Sung Hoon ; Lee, Chang Bok ; Lee, Young Kyu ; Lee, Jong Koo ; Kim, Young Jae ; Lee, Sang Jeong

Author_Institution

Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea

Volume

60

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

2648

Lastpage

2654

Abstract

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.

Keywords

correlation methods; mean square error methods; radionavigation; radiowave propagation; smoothing methods; LORAN system; LORAN-C signal; LORAN-C timing data; RMS value; accuracy improvement technique; accurate timing application; correlation value; diurnal variation; humidity data; long-range navigation; propagation time delay; smoothing interval; temperature; terrestrial radio navigation; timing accuracy improvement; value estimation; Correlation; Humidity; Smoothing methods; Temperature distribution; Temperature measurement; Timing; Additional secondary factor (ASF); LORAN-C; propagation time delay; time transfer; timing;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2010.2096970

Filename

5677483