Recently, the performance of a minimum variance distortionless response (MVDR) beamformer has been extensively studied for the case when a true or asymptotic covariance matrix is available. In practical situations, however, we only have a finite number of snapshots of data from which the array covariance matrix can be estimated. In this paper, we analyze the finite-data performance of this beam...

An analysis is given of the specific points of the noise power gain of the p-lag median hybrid FIR filters in applications to ultrasound image processing. An important feature of such a gain is that, at some cross points, it converges to the reduced degree one. The effect of smoothing is evaluated in terms of the signal-to-noise ratio and root mean square error metrics. We show that image enhan...

Trading electricity between regions can support the integration of variable renewable energy (VRE) through: (i) exploitation temporal differences in wind power generation (geographic smoothing); and (ii) connection that have unequal VRE resources (resource transfer). This work investigates impacts these two different trade features relation to other strategies for facilitating VRE. The transmis...

Energy is the foundation of economic development and technological development. Facing present situation non-renewable energy decline, wind power generation has been developed rapidly. However, problem unstable output voltage due to speed needs be solved, traditional solutions cannot make generated electric meet national standards for grid-connected off-grid operation. In this paper, by turbine...

Due to the growing concerns regarding environmental and economic issues in power systems, nowadays application of renewable energy sources (RES), especially wind has been increased. However, increasing penetration plants (WPPs) into grid raised numerous challenges including output fluctuations as well significant role these play low-voltage ride-through (LVRT) case short circuit fault condition...