In this paper, we study channel estimation at a uniform linear array (ULA) with N antennas, where the ULA is composed of xmlns:xlink="http://www.w3.org/1999/xlink">L paths different angles arrival (AoAs). It assumed that Discrete-Time Fourier Transform (DTFT) beams (also known as xmlns:xlin...

0018-9251/03/$17.00 @ 2003 IEEE Two-way antenna radiation pattern at frequency w + wc, Slow-time Doppler two-way antenna radiation pattern Pulse bandwidth Speed of light Covariance of w(k,,t) at time t Cross-range aperture length Energy of RJt) Energy of p( t ) Point target refectivity Fourier transform operator Inverse Fourier transform operator Fourier transform of electric field in antenna a...

In this paper we solve an open problem concerning the characterization of those measurable sets $\Omega\subset \mathbb{R}^{2d}$ that, among all having a prescribed Lebesgue measure, can trap largest possible energy fraction in time-frequency space, where density generic function $f\in L^2(\mathbb{R}^d)$ is defined terms its Short-time Fourier transform (STFT) $\mathcal{V} f(x,\omega)$, with Gau...

Induction motors are a critical component of many industrial processes and are frequently integrated in commercially available equipment and industrial processes. The studies of induction motor behavior during abnormal conditions, and the possibility to diagnose different types of faults have been a challenging topic for many electrical machine researchers. The Motor Current Signature Analysis ...