C. A. Greenhall

Total variance, an estimator of long-term frequency stability [standards]

C. A. Greenhall, David A. Howe, Donald B. Percival · IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · 1999 · 89 citations

Reliability, Engineering, Measurement +11

Recipes for degrees of freedom of frequency stability estimators

C. A. Greenhall · IEEE Transactions on Instrumentation and Measurement · 1991 · 79 citations

Stability Analysis, Engineering, Measurement +13

Local oscillator induced degradation of medium-term stability in passive atomic frequency standards

G.J. Dick, J. D. Prestage, C. A. Greenhall et al. · 1990 · 76 citations

A Kalman filter clock algorithm for use in the presence of flicker frequency modulation noise

John Davis, C. A. Greenhall, P.W. Stacey · Metrologia · 2005 · 68 citations

State Estimation, Adaptive Filter, Engineering +14

Forming stable timescales from the Jones–Tryon Kalman filter

C. A. Greenhall · Metrologia · 2003 · 56 citations

State Estimation, Raw Kalman Scale, Reduced Kalman Scale +10