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dLoran Measurement in Yeongil Bay using the Pohang Loran-C (9930M)
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 Title & Authors
dLoran Measurement in Yeongil Bay using the Pohang Loran-C (9930M)
Lee, Chang Bok; Lee, Jong Koo; Lee, Young Kyu; Hwang, Sang-Wook; Lee, Sang Jeong; Yang, Sung-Hoon;
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There are three essential components of eLoran: dLoran, data map of ASF, and the Loran data channel. Particularly, dLoran improves navigation accuracy, which is the core technology of eLoran systems. The requirement of HEA's absolute accuracy, less than 20 meters, can be satisfied via dLoran measurements and their corrections. In this study, dLoran measurements using the Pohang Loran-C (9930M) station signal were conducted at Yeongil Bay. We established a dLoran reference station at Homigot Management Office for navigation aids within the Bay. We estimated the effectiveness of the dLoran between the reference site (Homigot Management Office) and a test site (Heunghwan beach) by measuring TOAs. We verified that the TOA data measured at these two regions were highly correlated. The temporal differences in the data between the dLoran reference station and test site were about 10~30 ns per day, which is equivalent to a ranging error of 3~9 m. This result shows that eLoran can meet the requirement of 8~20 meters position accuracy for maritime HEA by correcting the ASF at the user's receiver.
eLoran;HEA;dLoran;position accuracy;TOA;
 Cited by
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