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Random pulse width modulation techniques are used in AC motors powered by two-level three-phase inverters, which cause a broadband spectrum of voltage, current, and electromagnetic force. The voltage distribution across a wide range of…

系统与控制 · 电气工程与系统科学 2024-06-07 Jian Wen , Xiaobin Cheng , Peifeng Ji , Jun Yang , Feng Zhao

The modular multilevel converter (MMC) is a promising converter technology for various highvoltage high-power applications. The reason to that is low-distortion output quantities can be achieved with low average switching frequencies per…

高能物理 - 实验 · 物理学 2025-01-03 Khushbu Saradva , Meeta Matnani , Tapankumar Trivedi

Repeating a gate sequence multiple times amplifies systematic errors coherently, making it a useful tool for characterizing quantum gates. However, the precision of such an approach is limited by low-frequency noises, while its efficiency…

Harmonic instability occurs frequently in the power electronic converter system. This paper leverages multi-resolution dynamic mode decomposition (MR-DMD) as a data-driven diagnostic tool for the system stability of power electronic…

信号处理 · 电气工程与系统科学 2024-04-16 Rui Kong , Subham Sahoo , Yongjie Liu , Frede Blaabjerg

A tunable, multi-degree-of-freedom, parametrically excited amplifier is introduced as an apparatus capable of shifting slow, weak signals to higher frequencies, by exploiting the amplifier natural resonances via controlled parametric…

应用物理 · 物理学 2018-10-16 Amit Dolev , Izhak Bucher

Dielectric barrier discharge (DBD) plasma actuator arrays have been suggested as active flow control devices due to the robust electrohydrodynamic (EHD) force generation in variable atmospheric conditions. DBD plasma augmentation schemes…

等离子体物理 · 物理学 2024-12-03 Anthony Tang , Alexander Mamishev , Igor Novosselov

A series of simple and low-cost devices for switching, amplifying, and chirping diode lasers based on current modulation are presented. Direct modulation of diode laser currents is rarely sufficient to establish precise amplitude and phase…

光学 · 物理学 2024-12-04 Gianni Buser

Multilevel inverters (MLIs) are popular because of their advantages such as improved output voltage quality, lower switching losses, low EMI, and ability to handle higher voltage and power levels. To generate the desired output voltage in…

系统与控制 · 电气工程与系统科学 2021-04-14 Amirhossein Pourdadashnia , Mohammad Farhadi-Kangarlu , Milad Sadoughi

Multi-taper estimators provide low-variance power spectrum estimates that can be used in place of the windowed discrete Fourier transform (DFT) to extract speech features such as mel-frequency cepstral coefficients (MFCCs). Even if past…

声音 · 计算机科学 2021-10-27 Xuechen Liu , Md Sahidullah , Tomi Kinnunen

Magneto-mechanical transmitters offer a compact and low-power solution for the generation of ultra-low frequency (ULF) magnetic signals for through-ground and through-seawater communications. Resonant arrays of smaller magneto-mechanical…

应用物理 · 物理学 2023-04-19 Jiheng Jing , Sameh Tawfick , Gaurav Bahl

Frequency Domain Multiplexed detector arrays constructed of superconducting Transition Edge Sensors in the current-summing configuration suffer from the finite impedance of the summing node which should ideally be zero. We suggest two…

天体物理仪器与方法 · 物理学 2018-10-23 Mikko Kiviranta , Leif Grönberg , Jan van der Kuur

We present a simple technique to produce active Q-switching in various types of fiber amplifiers by active integration of an electrostatic actuated deformable metallic micro-mirror. The optical MEMS (MOEMS) device acts as one of the laser…

其他计算机科学 · 计算机科学 2007-11-29 D. Bouyge , D. Sabourdy , A. Crunteanu , P. Blondy , V. Couderc , J. Lhermite , L. Grossard , A. Barthélemy

Maximum Voiced Frequency (MVF) is used in various speech models as the spectral boundary separating periodic and aperiodic components during the production of voiced sounds. Recent studies have shown that its proper estimation and modeling…

音频与语音处理 · 电气工程与系统科学 2020-06-02 Thomas Drugman , Yannis Stylianou

Testing differences in mean vectors is a fundamental task in the analysis of high-dimensional compositional data. Existing methods may suffer from low power if the underlying signal pattern is in a situation that does not favor the deployed…

统计方法学 · 统计学 2025-03-11 Danning Li , Lingzhou Xue , Haoyi Yang , Xiufan Yu

Expectation Propagation (EP)-based Multiple-Input Multiple-Output (MIMO) detector is regarded as a state-of-the-art MIMO detector because of its exceptional performance. However, we find that the EP MIMO detector cannot guarantee to achieve…

信号处理 · 电气工程与系统科学 2020-10-21 Hang Chen , Guoqiang Yao , Jianhao Hu

The current paper presents a Sliding Mode Controller (SMC) for indirect field-oriented Cascaded Doubly Fed Induction Generator (CDFIG) powered through a Matrix Converter (MC). The proposed SMC employs a continuous control strategy to…

系统与控制 · 电气工程与系统科学 2022-08-25 A. Maafa , H. Mellah , K. Ghedamsi , D. Aouzellag

This paper enumerates new architecture of low power dual-edge triggered Flip-Flop (DETFF) designed at 180nm CMOS technology. In DETFF same data throughput can be achieved with half of the clock frequency as compared to single edge triggered…

其他计算机科学 · 计算机科学 2014-12-30 Anurag , Gurmohan Singh , V. Sulochana

We introduce a new output amplifier for fully-depleted thick p-channel CCDs based on double-gate MOSFETs. The charge amplifier is an n-type MOSFET specifically designed and operated to couple the fully-depleted CCD with high charge-transfer…

仪器与探测器 · 物理学 2024-10-03 Miguel Sofo-Haro , Kevan Donlon , Juan Estrada , Steve Holland , Farah Fahim , Chris Leitz

In recent years, the use of multilevel inverter has become popular due to its many advantages. Due to the popularity of multilevel inverters in industries and in applications that require a wide range of voltages, there have been many…

系统与控制 · 电气工程与系统科学 2021-04-27 Amirhossein Pourdadashnia , Milad Sadoughi , Mohammad Farhadi-Kangarlu , Behrouz Tousi

A rectenna (rectifying antenna) is usually applied to a microwave power transmission (MPT) system as a terminal, which receives microwave (MW) power and converts them into DC power. A 5.8 GHz aperture-coupled patch antenna array is…

应用物理 · 物理学 2025-12-05 C Yu , F Tan , C Liu