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In this paper, joint frequency and 2-D direction of arrival (DOA) estimation at sub-Nyquist sampling rates of a multi-band signal (MBS) comprising of P disjoint narrowband signals is considered. Beginning with a standard uniform rectangular array (URA) consisting of M = Mx × My sensors, this paper proposes a simpler modification by adding a N — 1 delay channel network to only one of the sensor. A...
Joint frequency and DOA estimation of more sources than the number of sensors is considered in this paper. We assume a simple uniform linear array (ULA) and propose to employ a multiple delay channel network at every sensor, which can easily be realized by sampling at a slightly higher rate. By combining the outputs of the ULA and the delay network, we show that the manifold matrix is analogous to...
In this paper, a power delay profile estimation technique for linear minimum mean square error channel estimator of Multi-User multiple-input multiple-output Orthogonal Frequency Division Multiplexing systems is proposed. For practical applications, the proposed technique uses only the pilot symbols of all the transmit antenna ports to estimate the power delay profile with low computational complexity...
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