1. Wang, Z. M., Yi, D. Y., Measured Data Modeling and Parameter Estimation (in Chinese), Changsha: NUDT Press, 1996, 224–331.
2. Wang, Z. M., Zhu, J. B., Reduced parameter model on trajectory tracking data with applications, Science in China, Ser. E, 1999, 42(2): 190.
3. Mohammed, A. H., Mahood, R., Separation of multiple time delays using new spectral estimation schemes, IEEE Trans. on Signal Processing, 1998, (6): 1580.
4. Priestley, M. B., Spectral Analysis and Time Series, New York: Academic Press Inc, 1981, 184–210.
5. Zhao, S. N., Xiong, X. Y., Wavelet Transform and Its Analysis (in Chinese), Beijing: Electron Technology Press, 1997, 14–25.