This paper proposes a hybrid carrier based space vector modulation suitable for multiphase multilevel inverters. Multiphase multilevel inverters are controlled by this hybrid modulation to provide multiphase variable voltage and variable frequency supply. The proposed modulation combines the benefits of fundamental frequency modulation and carrier based space vector modulation strategies. The m...

Spatial Modulation (SM) is a recently proposed joint coding and modulation scheme for Multiple–Input–Multiple–Output (MIMO) wireless systems, which is receiving a growing interest. SM is used in wireless systems, which can offer good data rates and error performance with a moderately low system complexity. Adaptive modulation schemes for fading channels are usually required to fulfil certain lo...

The bifurcation analysis of a composite beam subjected to harmonic flapwise base excitation is studied when the ratio of flapwise and chordwise internal resonances is 1:2. Results are obtained by the numerical solution of modulation equations. Chracteristics of the response are investigated in terms of time history, phase portraits diagrams and bifurcation diagram of poincare maps. It is observ...

In multiple-input multiple-output (MIMO) systems, multiple radio frequency (RF) chains are usually required to simultaneously transmit data streams. As a special MIMO technology, spatial modulation (SM) activates one antenna by requiring RF chain and exploits the index of active for information transfer at each time slot. Recently, reconfigurable metasurfaces have emerged as promising technolog...

Here we study thermal modulation effect on nanofluid convection and discuss heat mass transfer in the layer. The non-uniform time periodic boundary conditions of system are considered. A weak non-linear stability analysis has been performed obtained coefficients as a function parameters. Ginzburg Landau model was employed to derive convective amplitude at different stages flow disturbances modu...

It has been reported that vocal emotion recognition is challenging for cochlear implant (CI) listeners due to the limited spectral cues with CI devices. As the mechanism of CI, modulation information is provided as a primarily cue. Previous studies have revealed that the modulation components of speech are important for speech intelligibility. However, it is unclear whether modulation informati...

In this paper our aim is to investigate the properties of the modulation domain and more specifically, to evaluate the relative contributions of the modulation magnitude and phase spectra towards speech intelligibility. For this purpose, we extend the traditional (acoustic domain) analysis–modification–synthesis framework to include modulation domain processing. We use this framework to constru...