Results 1 to 10 of about 299,236 (294)
Modulation Index Adjustment for Recovery of Pure Wavelength Modulation Spectroscopy Second Harmonic Signal Waveforms [PDF]
Sensors, 2017 A new technique of modulation index adjustment for pure wavelength modulation spectroscopy second harmonic signal waveforms recovery is presented. As the modulation index is a key parameter in determining the exact form of the signals generated by the ...
Wei Wei +3 more
doaj +5 more sources
Quantification of Phase-Amplitude Coupling in Neuronal Oscillations: Comparison of Phase-Locking Value, Mean Vector Length, Modulation Index, and Generalized-Linear-Modeling-Cross-Frequency-Coupling [PDF]
Frontiers in Neuroscience, 2019 Phase-amplitude coupling is a promising construct to study cognitive processes in electroencephalography (EEG) and magnetencephalography (MEG). Due to the novelty of the concept, various measures are used in the literature to calculate phase-amplitude ...
Mareike J. Hülsemann +2 more
doaj +2 more sources
Dual-Mode Index Modulation Aided OFDM
IEEE Access, 2017 Index modulation has become a promising technique in the context of orthogonal frequency division multiplexing (OFDM), whereby the specific activation of the frequency domain subcarriers is used for implicitly conveying extra information, hence improving
Tianqi Mao +4 more
doaj +3 more sources
Measurement of Analog Modulation Index with a Calibrated Radio Frequency Attenuator [PDF]
Journal of Electromagnetic Engineering and Science, 2021 This paper presents a method for the accurate and traceable measurement of the analog modulation index. A calibrated step attenuator was used as the main apparatus because it has a higher dynamic range and lower uncertainty than a spectrum analyzer or an
Chihyun Cho +4 more
doaj +1 more source
IEEE Access, 2021 Pulse width modulation (PWM) control for power converters have been vastly investigated and used in many industrial application. For medium voltage and high power applications, low switching frequency PWM techniques are preferred over high switching ...
Salman Ahmad +4 more
doaj +1 more source
Case Report: Subtotal Hemispherotomy Modulates the Epileptic Spasms in Aicardi Syndrome
Frontiers in Neurology, 2021 The mechanism of epileptic spasms (ES) in Aicardi syndrome (AS) remains obscure. We compared intraoperative high-frequency oscillations (HFOs) and phase-amplitude coupling (PAC) before and after subtotal hemispherotomy in a 3-month-old girl with drug ...
Yasushi Iimura +7 more
doaj +1 more source
Open Circuit Fault Mitigation in a Nine-Level Modified Packed E-Cell Inverter
Energies, 2022 Reliability of the multilevel inverters (MLIs) is one of the most important concerns in industrial applications, mainly due to the semiconductor devices.
Shoeb Ahmad Khan +4 more
doaj +1 more source
An Impedance Network-Based Three Level Quasi Neutral Point Clamped Inverter with High Voltage Gain
Energies, 2020 Due to the impediments of voltage source inverter and current source inverter, Z-Source Inverter (ZSI) has become notorious for better power quality in low and medium power applications. Several modifications are proposed for impedance source in the form
Muhammad Aqeel Anwar +5 more
doaj +1 more source
Emitter: International Journal of Engineering Technology, 2021 Harmonic content is an important parameter in relation to the power generated by inverter. In power conversion technology of inverter, sinusoidal pulse width modulation (SPWM) is the most popular used by many researchers.
Ant. Ardath Kristi +6 more
doaj +1 more source
Archives of Electrical Engineering, 2016 This paper presents the modeling and simulation of a novel topology of quasi Z-Multilevel Inverter with stepped DC input. The proposed inverter incorporates a simple switching technique with reduced component count and is aimed at producing boosted ...
Meenakshi T., Vanitha N. Suthanthira
doaj +1 more source