Results 41 to 50 of about 319,225 (348)
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source
Vojnotehnički Glasnik, 1996 The problem of simple periodic interference suppression in DS-SS (Direct Sequence Spread Spectrum) systems is considered. It can be solved using the method of phase-locked loop, transverse filters and adaptive arrays.
Ivan Miletić
doaj +1 more source
Phase Locked Loop Test Methodology [PDF]
, 2008 Phase locked loops are incorporated into almost every large-scale mixed signal and digital system on chip (SOC). Various types of PLL architectures exist including fully analogue, fully digital, semi-digital, and software based.
Burbidge, Martin, Richardson, Andrew
core
Advanced Functional Materials, EarlyView.Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp +7 more
wiley +1 more source
Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules
Advanced Functional Materials, EarlyView.A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang +7 more
wiley +1 more source
Discrete Phase-Locked Loop Systems and Spreadsheets
Spreadsheets in Education, 2005 This paper demonstrates the use of a spreadsheet in exploring non-linear difference equations that describe digital control systems used in radio engineering, communication and computer architecture. These systems, being the focus of intensive studies of
Sergei Abramovich +3 more
doaj +2 more sources
Research and Application of a Parameter Adaptive Enhanced Single-phase Phase-locked Loop
Kongzhi Yu Xinxi Jishu, 2021 In a railway traction power supply system, there are problems of network voltage distortion such as frequency / phase mutation, amplitude drop, harmonic pollution and so on.
CHEN Xin, HU Jingyu, PENG Yun, FU Gang
doaj
Digital phase-locked loop [PDF]
, 1975 An digital phase-locked loop is provided for deriving a loop output signal from an accumulator output terminal. A phase detecting exclusive OR gate is fed by the loop digital input and output signals.
Cliff, R. A.
core +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán +13 more
wiley +1 more source
A Practicable Optoelectronic Oscillator with Ultra-Low Phase Noise
PhotonicsIn this paper, an optoelectronic oscillator (OEO) with ultra-low phase noise and high stability based on the injection-locked and phase-locked loop is proposed.
Ziyue Zheng +6 more
doaj +1 more source