| Paper: | SAM-L4.6 | ||
| Session: | Direction-Of-Arrival Estimation | ||
| Time: | Thursday, May 18, 18:10 - 18:30 | ||
| Presentation: | Lecture | ||
| Topic: | Sensor Array and Multichannel Signal Processing: Adaptive beamforming and direction of arrival estimation | ||
| Title: | Extension of root-MUSIC to non-ULA Array Configurations | ||
| Authors: | Fabio Belloni, Andreas Richter, Visa Koivunen, Helsinki University of Technology, Finland | ||
| Abstract: | In this paper we introduce a method for modelling the steering vector of an arbitrary array such that its steering vector can be expressed as the product of a characteristic matrix of the array itself and a vector with a Vandermonde structure containing the unknown parameter. We call this technique manifold separation. By exploiting this concept, we developed a novel version of the root-MUSIC algorithm for Direction of Arrival (DoA) estimation of sources. It can be applied to arbitrary 2-D array configurations. The proposed algorithm processes the data in element-space domain and does not require any transformation or array interpolation. The novel algorithm provides computationally efficient DoA estimation and has close to CRB performance already at low SNRs. | ||
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