Results 21 to 30 of about 162,262 (264)

Robust phase-shift-keying Silicon photonic modulator

Optics Express, 2012
Here we propose a robust silicon modulator that seamlessly generates phase shift keyed data. The modulator has very low insertion loss and is robust against electrical amplitude variations in the modulating signal; specifically a 50%-200% variation in modulating amplitude leads to only a π/9 variation in output optical phase, corresponding to only ± 10%
Donald, Adams, Abdelsalam, Aboketaf, Stefan, Preble   +2 more
openaire   +2 more sources

Analysis of the pattern recognition algorithm of broadband satellite modulation signal under deformable convolutional neural networks.

PLoS ONE, 2020
This research aims to analyze the effects of different parameter estimation on the recognition performance of satellite modulation signals based on deep learning (DL) under low signal to noise ratio (SNR) or channel non-ideal conditions.
Hui Li, Ming Li
doaj   +1 more source

An Adaptive Sliding Mode Control for a Dual Active Bridge Converter With Extended Phase Shift Modulation

IEEE Access, 2023
This paper introduces an adaptive super-twisting sliding mode control (ASTSMC) approach for controlling a dual active bridge (DAB) converter with an extended phase shift (EPS) modulation.
Farzaneh Bagheri, Naki Guler, Hasan Komurcugil, Sertac Bayhan   +3 more
doaj   +1 more source

Binary phase-shift keying by coupling modulation of microrings

Optics Express, 2014
We propose a coupling-modulated microring in an add-drop configuration for binary phase-shift keying (BPSK), where data is encoded as 0 and π radian phase-shifts on the optical carrier. The device uses the π radian phase-flip across the zero coupling point in a 2 × 2 Mach-Zehnder interferometer coupler to produce the modulation.
Wesley D, Sacher, William M J, Green, Douglas M, Gill, Solomon, Assefa, Tymon, Barwicz, Marwan, Khater, Edward, Kiewra, Carol, Reinholm, Steven M, Shank, Yurii A, Vlasov, Joyce K S, Poon   +10 more
openaire   +2 more sources

Solving Doppler-Angle Ambiguity of BPSK-MIMO FMCW Radar System

IEEE Access, 2021
In a multiple-input multiple-output (MIMO) radar system, binary phase-shift keying (BPSK) modulation is widely used to separate signals transmitted from multiple transmit (Tx) antennas.
Jaehoon Jung, Sohee Lim, Seong-Cheol Kim, Seongwook Lee   +3 more
doaj   +1 more source

An Energy-Synchronous Direct Antenna Modulation Method for Phase Shift Keying

IEEE Open Journal of Antennas and Propagation, 2020
A novel scheme for transmitting broadband phase shift keyed signals from electrically small antennas using energy-synchronous direct antenna modulation is described. We outline fundamental operating principles of the method and experimentally compare its
Kurt Schab, Danyang Huang, Jacob J. Adams   +2 more
doaj   +1 more source

A Survey on Robust Modulation Requirements for the Next Generation Personal Satellite Communications

Frontiers in Communications and Networks, 2022
The unrelenting technological advancement in the generation of wireless networks in recent years has awakened the motion concerning the inclusion of satellites in personal communications.
Julius Ssimbwa, Byungju Lim, Ju-Hyung Lee, Young-Chai Ko   +3 more
doaj   +1 more source

Nonreciprocal phase shifts in spatiotemporally modulated systems

Physical Review B
Materials and devices subject to spatiotemporal modulation of their effective properties have a demonstrated ability to support nonreciprocal transmission of waves. Most notably, spatiotemporally modulated systems can restrict wave transmission to only one direction; i.e.
Jiuda Wu, Behrooz Yousefzadeh
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Technical Review of PWM Techniques for Dual Active Bridge for EV Charging

Al-Iraqia Journal for Scientific Engineering Research
The need for bidirectional power flow between Electric Vehicle (EV) chargers and the grid via Vehicle-to-Grid (V2G) technology demands efficient power electronic converters.
P.B. Musiiwa, E.T. Kapuya, D. Musademba, D. Simango   +3 more
doaj   +1 more source