7Williams,P and Last,J.D..Mapping the ASFs of the Northwest European Loran-C System.28^th Annual Convention and Technical Symposium,International Loran Association,October 1999.
8Williams,P and Last,J.D..New Ways of Looking at Loran-C ASFs.31^th Annual Convention and Technical Symposium,International Loran Association,2002.
9朱长青.计算方法[M].解放军出版社,1999.
10Giannitrapani A, Ceccarelli N, Scortecci F. Comparison of EKF and UKF for Spacecraft Localization via Angle Measure- ments[J]. IEEE Transactions on Aerospace and Electronic Sys- tems, 2011,47(2):75-84.