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A simplified implementation method of $M$ th-power is investigated in this letter. Before frequency offset estimation (FOE), the $M$ th-power operation is required to remove the modulated data phase. One disadvantage of $M$ th-power operation is its large computational complexity, especially for high-order modulation systems. In this letter, we propose a low complexity method to approximately implement...
Root-MUSIC algorithm, designed for uniform linear arrays, has been extended to arrays of arbitrary geometry by means of manifold separation techniques but at the cost of increased computational complexity. In this paper, an inverse discrete Fourier transform (IDFT)-based method is proposed in which polynomial rooting is avoided. The proposed method asymptotically exhibits the same performance as the...
In this paper, we present a comparative study of the performance of the joint time of arrival/direction of arrival (TOA/DOA) estimation techniques - estimation of signal parameters via rotational invariance technique (ESPRIT), joint angle and delay estimation (JADE) and space-alternating generalised expectation maximisation (SAGE) - in the context of a strong multipaths model. We focus on a number...
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