Showing papers by "Mats Viberg published in 2000"
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05 Jun 2000TL;DR: A beamspace transformation is presented that preserves the Cramer Rao bounds for the parameters of interest, and at the same time interpolates the true array manifold in such a way that a virtual uniform linear array is obtained in beamspace.
Abstract: This paper focuses on beamspace DOA estimation in colored noise. We present a beamspace transformation that preserves the Cramer Rao bounds for the parameters of interest, and at the same time interpolates the true array manifold in such a way that a virtual uniform linear array is obtained in beamspace. Besides the computational savings offered by the dimensionality reduction, the virtual array enables the use of computationally simple algorithms such as root-MUSIC or ESPRIT.
10 citations
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TL;DR: Computer simulations are given that illustrate the problem of interference from out-of-band-sources that result when a beamspace transformation is designed to focus on a particular sector and show that significant improvements are gained in terms of mean-square error performance.
9 citations