This paper proposes an optimized harmonic reduction pulse width modulation (HRPWM) control strategy for three-phase quasi Z-source inverter (qZSI). In traditional sinusoidal or space vector techniques, the flexibility in adjustment of individual switching angles is not possible and thus, these techniques are optimum choices low frequency operations high/medium power qZSI. proposed technique, ad...

Due to the importance of beamforming in improving communication systems performance, this paper presents a novel study planar antenna arrays (PAAs) utilizing Improved Grey Wolf Optimization (I-GWO) algorithm with goal minimizing peak sidelobe level (PSLL). It is very important suppress (SLL) because it minimizes interference and received noise. A two-dimensional (2D) optimization method present...

In this paper, a new Multi-Layer Perceptron Neural Network (MLP NN) classifier is proposed for classifying sonar targets and non-targets from the acoustic backscattered signals. Besides capabilities of MLP NNs, it uses Back Propagation (BP) Gradient Descent (GD) training; therefore, NNs face with not only impertinent classification accuracy but also getting stuck in local minima as well low-con...

Abstract This paper proposes a new multi-level spring restrainer (MLSR) that exhibits multi stiffness performance in different levels of movement bridge superstructure to prevent unseating during applied dynamic loads. The analytical model the proposed MLSR was formulated and fabricated prototype tested using actuator. Based on developed mode, function device relied 12 parameters further compli...