Results 1 to 10 of about 607,525 (309)

Compensating Processing Delay in Excess of One Clock Cycle in Noise Shaping Loops Without Altering the Filter Topology

open access: yesIEEE Access, 2021
This work presents an analytical method to design a stable loop filter for a noise shaper with parasitic delays or poles in the loop. This method does not require an increase in the order of the loop or extra feedback paths and keeps the original poles ...
Christiaan E. Lokin   +3 more
doaj   +1 more source

Enhancing the Filtering Capability and the Dynamic Performance of a Third-Order Phase-Locked Loop under Distorted Grid Conditions

open access: yesEnergies, 2023
This work proposes a structural enhancement and a new technique to design the loop filter (LF) of a third-order phase-locked loop (PLL) to enhance the PLL dynamic performance under abnormal grid conditions.
Issam A. Smadi   +2 more
doaj   +1 more source

Multi-strand coronal loop model and filter-ratio analysis [PDF]

open access: yes, 2009
We model a coronal loop as a bundle of seven separate strands or filaments. Each of the loop strands used in this model can independently be heated (near their left footpoints) by Alfv\'en/ion-cyclotron waves via wave-particle interactions.
Bourouaine, S., Marsch, E.
core   +3 more sources

A resonant damping control and analysis for LCL-type grid-connected inverter

open access: yesEnergy Reports, 2022
The inverter becomes an essential part in the distributed energy units, where an inductor–capacitor–inductor (LCL) filter is an up-to-date adoption for grid interfacing.
Danish Khan   +5 more
doaj   +1 more source

Analysis of the Characteristics of a Biharmonic Oscillator with Two Synchronous Modes [PDF]

open access: yesE3S Web of Conferences, 2022
The paper investigates the influence of the coupling coefficient of the double-loop filter forming a biharmonic oscillator on the quality factor and resonant impedance of the input impedance at the resonant frequencies of the double-loop filter.
Frolov Daniil A.   +5 more
doaj   +1 more source

Tunable Optical Filters Using Compound Ring Resonators for DWDM [PDF]

open access: yes, 2003
The device is based on a loop mirror in a ring resonator. The loop mirror allows tuning by changing the coupling coefficient of a directional coupler. The loop mirror is implemented using a Sagnac configuration to have the same optical path between the ...
Corredera, Pedro   +3 more
core   +3 more sources

Sigma-delta modulator: loop filters and quantization noise [PDF]

open access: yesТехнологія та конструювання в електронній апаратурі, 2013
In this paper the sigma-delta modulator was analyzed with the use of simulation. In particular, the author studied dependence of the quantization noise on the loop filtration.
V. S. Golub
doaj   +1 more source

More on the determination of the coronal heating function from Yohkoh data [PDF]

open access: yes, 2002
Two recent works have analyzed a solar large and steady coronal loop observed with Yohkoh/SXT in two filter passbands to infer the distribution of the heating along it. Priest et al.
Reale, F.
core   +2 more sources

Differential Kalman Filter Design for GNSS Open Loop Tracking

open access: yesRemote Sensing, 2020
Global navigation satellite system (GNSS) positioning in an urban environment is in need for accurate, reliable and robust positioning. Unfortunately, conventional closed-loop tracking fails to meet the demand.
Tian Jin   +4 more
doaj   +1 more source

Virtual inertia analysis of photovoltaic energy storage systems based on reduced-order model

open access: yesFrontiers in Energy Research, 2023
The problem of non-ideal inertia of the photovoltaic energy storage system (PVESS) may occur due to unreasonable voltage control parameters. In response to this issue, this paper establishes an equivalent reduced-order model (EROM) for PVESS.
Guanyang Li   +3 more
doaj   +1 more source

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