Direction of Arrival Estimation Using Sparse Ruler Array Design

In this paper, a new Direction Of Arrival (DOA) estimation approach is addressed for the case of more sources than physical receiving antennas by considering a novel non-uniform array design. The new design utilizes the concept of minimum sparse rulers which are rulers having incomplete marks. The differences between marks in a sparse ruler cover all lags of the autocorrelation. In array processing, this set of differences can be used as a basis to construct a virtual uniform linear array having a higher number of antennas than the actual linear array. In order to attain the required rank condition of the observation matrix, the most recent spatial smoothing method is used.

Provided by: Delft University of Technology Topic: Mobility Date Added: Apr 2012 Format: PDF

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