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math.ST2014★ 5 cited
Estimation for the Linear Model with Uncertain Covariance Matrices
Dave Zachariah, Nafiseh Shariati, Mats Bengtsson +2
We derive a maximum a posteriori estimator for the linear observation model, where the signal and noise covariance matrices are both uncertain. The uncertainties are treated probab…
math.ST2013★ 7 cited
Utilization of Noise-Only Samples in Array Processing With Prior Knowledge
Dave Zachariah, Magnus Jansson, Mats Bengtsson
For array processing, we consider the problem of estimating signals of interest, and their directions of arrival (DOA), in unknown colored noise fields. We develop an estimator tha…