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Rethinking biased estimation [Lecture Notes]

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2 Author(s)
Kay, S. ; Univ. of Rhode Island, Kingston ; Eldar, Y.C.

In this lecture note we discuss methods to improve the accuracy of unbiased estimators used in many signal processing problems. Our approach is based on introducing a bias as a means of reducing the mean-squared error (MSE). The important aspect of our framework is that the reduction in MSE is guaranteed for all values of the unknown parameter.

Published in:

Signal Processing Magazine, IEEE  (Volume:25 ,  Issue: 3 )