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Title: Kalman estimation of single-tone parameters and performance comparison with MAP estimator
Authors: Fu, H. 
Kam, P.Y. 
Keywords: Bayesian Cramér-Rao lower bound (BCRLB)
Kalman filter
Maximum a posteriori (MAP) estimation
Phase noise model
Phase unwrapping
Issue Date: 2008
Citation: Fu, H., Kam, P.Y. (2008). Kalman estimation of single-tone parameters and performance comparison with MAP estimator. IEEE Transactions on Signal Processing 56 (9) : 4508-4511. ScholarBank@NUS Repository.
Abstract: By incorporating a priori knowledge via the a priori probability density function of the frequency and phase, the Kalman estimator for linear, minimum mean-square error estimation of these single-tone parameters in additive, white, Gaussian noise is presented. First, a linear, two-dimensional state-space model for the frequency and phase of a sinusoid is formulated. Then, two Kalman filters are proposed, one based on Tretter's phase noise model [S. A. Tretter, ldquoEstimating the Frequency of a Noisy Sinusoid by Linear Regression,rdquo IEEE Transactions on Information Theory, vol. IT-31, no. 6, pp. 832-835, Nov. 1985], and the other based on our newly proposed model in [H. Fu and P. Y. Kam, ldquoMAP/ML Estimation of the Frequency and Phase of a Single Sinusoid in Noise,rdquo IEEE Transactions on Signal Processing, vol. 55, no. 3, Mar. 2007]. Finally, their mean-square error performances are compared with each other and with that of the maximum a posteriori probability (MAP) estimator, using computer simulations. The results show that the MAP estimator performs best and the Kalman filter based on the improved phase noise model has better performance than that based on Tretter's model, especially at low signal-to-noise ratio. © 2008 IEEE.
Source Title: IEEE Transactions on Signal Processing
ISSN: 1053587X
DOI: 10.1109/TSP.2008.923805
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