Title :
A global lower bound on parameter estimation error with periodic distortion functions
Author :
Basu, Samit ; Bresler, Yoram
Author_Institution :
Dept. of Res. Dev., Gen. Electric Corp., Niskayuna, NY, USA
fDate :
5/1/2000 12:00:00 AM
Abstract :
We present a global Ziv-Zakai (1969) type lower bound on the mean square error for estimation of signal parameter vectors, where some components of the distortion function may be periodic. Periodic distortion functions arise naturally in the context of direction of arrival or phase estimation problems. The bound is applied to an image registration problem, and compared to the performance of the maximum-likelihood estimator (MLE)
Keywords :
direction-of-arrival estimation; error analysis; functions; image registration; mean square error methods; phase estimation; DOA estimation; MLE; Ziv-Zakai-type lower bound; direction of arrival estimation; global lower bound; image registration problem; maximum-likelihood estimator; mean square error; parameter estimation error; performance; periodic distortion functions; phase estimation; signal parameter vectors; AWGN; Direction of arrival estimation; Estimation error; Image registration; Maximum likelihood estimation; Mean square error methods; Nonlinear distortion; Parameter estimation; Phase distortion; Phase estimation;
Journal_Title :
Information Theory, IEEE Transactions on
