Yee Hong Leung

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Shepherd and McWhirter proposed a QRD-RLS algorithm for adaptive filtering with linear constraints. In this paper, the numerical properties of this algorithm are considered. In particular, it is shown that the computed weight vector satisfies a set of constraints which are perturbed from the original ones, the amount of perturbation being dependent on the(More)
Many popular direction-of-arrival (DOA) estimators rely on the fact that the array response vector of the array is Vandermonde, for example, that of a uniform linear array (ULA). Array interpolation is a preprocessing technique to transform the array response vector of a planar array of arbitrary geometry to that of a ULA over an angular sector. While good(More)
The optimization procedure also provides robustness against uncertainties in the actual array sensor positions. This is essential as the directivity pattern can be very sensitive to such errors. For example, in towed array applications, the actual sensor positions are seldom known exactly. In active sonar, the transmission is usually of short duration and(More)