3 research outputs found
Max-SINR Receiver for HMCT Systems over Non-Stationary Doubly Dispersive Channel
In this paper, a maximizing Signal-to-Interference plus-Noise Ratio
(Max-SINR) receiver for Hexagonal Multicarrier Transmission (HMCT) system over
non-stationary doubly dispersive (NSDD) channel is proposed. The closed-form
timing offset expression of the prototype pulse for the proposed Max-SINR HMCT
receiver over NSDD channel is derived. Simulation results show that the
proposed Max-SINR receiver outperforms traditional projection scheme and
obtains an approximation to the theoretical upper bound SINR performance within
all the local stationarity regions (LSRs). Meanwhile, the SINR performance of
the proposed Max-SINR HMCT receiver is robust to the estimation error between
the estimated value and the real value of root mean square (RMS) delay spread.Comment: This paper has been accepted by URSI GASS 2014 and will be presented
in the proceeding of URSI GASS 201
ESPRIT Based Robust Anti-Islanding Algorithm for Grid-Tied Inverter
Abstract—This paper presents an anti-islanding protection scheme for a grid tied inverter. In this scheme, the oscillation variation in frequency is estimated by Estimation of Signal Parameters via Rotational Invariant Technique (ESPRIT). The proposed system is implemented in MATLAB and real time in OPAL-RT. Series of simulation results demonstrate that nondetection zone of proposed algorithm is negligible, and the scheme is also free from nuisance tripping to other transient events