1. Total variance, an estimator of long-term frequency stability;Greenhall;IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control,1999
2. Galileo and the IGS: taking advantage of multiple GNSS constellations;Dow;ASR,2007
3. Fu, W., Huang, G., Liu, Y., Zhang, Q., Yu, H., 2013. The analysis of the characterization for GLONASS and GPS on-board satellite clocks. In: China Satellite Navigation Conference (CSNC) 2013 Proceedings. Lecture Notes in Electrical Engineering, Wuhan, China, May 05-06, 244, pp. 549–566.
4. Guo, H., 2006. Study on the analysis theories and algorithms of the time and frequency characterization for atomic clocks of navigation satellites. Ph.D. Thesis, The Information Engineering University, ZhengZhou, China.
5. Analyses of main error sources on time-domain frequency stability for atomic clocks of navigation satellites (in Chinese);Guo;Geomatics Inform. Sci. Wuhan Univ.,2009