In this study, we propose index modulation (IM) with circularly-shifted chirps (CSCs) (CSC-IM) for dual-function radar and communication (DFRC) systems. The proposed scheme encodes the information bits CSC indices phase-shift keying (PSK) symbols. It allows receiver to exploit frequency selectivity naturally in fading channels by combining IM wideband CSCs. also leverages fact that a is constan...

Abstract We, using the Cluster data from 2001 to 2010, studied spatial distribution of ion polytropic index in magnetosheath, and modulation process by low-frequency disturbances (4–18 mHz). The total 30,3283 samples is divided into two sorts: quasi-perpendicular quasi-parallel propagating ones. median increases with spreads narrowing bow shock magnetopause. indices are basically between isothe...

in this study myer index was calculated for six groups of a sample of urban and rural population of iran, classified by population size. the data used were information collected on 146116 urban and 158124 rural populations, for estimation of death, birth and growth rates in iran. the results indicate: the range of the index varies between 23.14-68.06 for women and 28.41-69.62 for men (urban or ...

In this letter, we present the first attempt of active light-emitting diode (LED) indexes estimating for generalized LED index modulation optical orthogonal frequency-division multiplexing (GLIM-OFDM) in visible light communication (VLC) system by using deep learning (DL). Instead directly transmitted binary bit sequence with DL, LEDs at transmitter are estimated to maintain acceptable complexi...

This paper presents a modulation extension control algorithm for hybrid cascaded H-bridge multilevel converters. The hybrid cascaded H-bridge multilevel motor drive using only a single dc source for each phase is promising for high-power motor drive applications since it can greatly decrease the number of required dc power supplies, has high-quality output power because of its high number of ou...

In this article, a high data rate and energy-efficient multiple-input multiple-output transmission scheme is considered by combining two popular rational modulation techniques: spatial (SM) code index modulation-spread spectrum (CIM-SS). Since in the system, called generalized CIM-SM (GCIM-SM), incoming information bits determine modulated symbols, activated transmit antenna indices as well the...

the determination of the optimal distribution of the catalytic activity profile, whichmaximizes the catalytic effectiveness, in created unsteady state conditions, is analyzed andtreated numerically for the case of a simple reaction. it was proven that the modulation, of thetemperature and the reactant concentration of the external bulk fluid, leads to a considerableincrease of the catalytic eff...

We demonstrate experimentally a transition from nonlinear beam trapping to defocusing in a two-dimensional periodic photonic structures by varying the modulation depth of the lattice. The observed effect illustrates the fundamental crossover from discrete to cw transport mechanisms. At the threshold modulation, the output beam is highly sensitive to refractive index and power variations, which ...