Publisher:Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011.
Citation:2011 Joint Conference of the IEEE International Frequency Control Symposium (IFCS) and European Frequency and Time Forum (EFTF), San Francisco, California, May 1-5, 2011
Abstract:
This paper summarizes the author’s work on
timescales based on Kalman filters that act upon the clock comparisons. The natural Kalman timescale algorithm tends to optimize long-term timescale stability at the expense of short-term stability. By subjecting each post-measurement error covariance matrix to a non-transparent reduction operation, one obtains corrected clocks with improved short-term stability and little sacrifice of long-term stability.
