Results 21 to 30 of about 5,020,295 (161)

Efficiency Analysis of Time Synchronization and PAPR Reduction of N-OFDM Modem

Journal of Physics: Conference Series, 2019
Non-Orthogonal Frequency Division Multiplexing (N-OFDM) remains to be a promising digital modulation technique for high-data-rate wireless transmission.
V. Maystrenko, V. V. Maystrenko, I. A. Batyrev, A A Lyubchenko, E. Kopytov, Jsc “Oniip”   +5 more
semanticscholar   +1 more source

Optimization of DMD-based independent amplitude and phase modulation by analysis of target complex wavefront

Scientific Reports, 2022
The paper presents the results of a comprehensive study on the optimization of independent amplitude and phase wavefront manipulation which is implemented using a binary digital micromirror device. The study aims to investigate the spatial resolution and
A. Georgieva, A. V. Belashov, N. Petrov
semanticscholar   +1 more source

Single Sideband Hartley Amplitude Modulation

Radioelectronics and Communications Systems, 2020
It is developed a method of information transmission with application of amplitude Single Sideband Hartley modulation (SSBH) allowing to increase of radio channel length for optical and fiber optic signal transmission systems where single sideband ...
A. B. Kokhanov, S. V. Yemelianov, Ya. V. Derevyagin   +2 more
semanticscholar   +1 more source

Giant nonlinear self-phase modulation of large-amplitude spin waves in microscopic YIG waveguides

Scientific Reports, 2022
Nonlinear self-phase modulation is a universal phenomenon responsible, for example, for the formation of propagating dynamic solitons. It has been reported for waves of different physical nature. However its direct experimental observation for spin waves
H. Merbouche, B. Divinskiy, K. O. Nikolaev, C. Kaspar, W. Pernice, D. Gouéré, R. Lebrun, V. Cros, J. Ben Youssef, P. Bortolotti, A. Anane, S. Demokritov, V. Demidov   +12 more
semanticscholar   +1 more source

Effect of Dispersion Slope of Highly Nonlinear Fibre on The Performance of Self Phase Modulation Based 2R-Optical Regenerator [PDF]

, 2010
In this paper we numerically investigate the effect of dispersion slope of the highly nonlinear fibre on the performance of Self Phase Modulation based 2R-optical regenerators.
Salman Ghafoor, Periklis Petropoulos, Petropoulos, Periklis, Ghafoor, Salman   +3 more
core   +2 more sources

A Simple Optimization Method for Generating High-Purity Amplitude and Phase Modulation

IEEE Transactions on Instrumentation and Measurement, 2022
We present a simple method for the adjustment of an in-phase (I) and quadrature-phase (Q) Armstrong-type modulator for use as a calibrator in precision noise metrology.
A. Hati, C. Nelson
semanticscholar   +1 more source

Temporal modulation transfer functions in the European Starling (Sturnus vulgaris): II. Responses of auditory-nerve fibres [PDF]

, 1995
The temporal resolution of cochlear-nerve fibres in the European starling was determined with sinusoidally amplitude-modulated noise stimuli similar to those previously used in a psychoacoustic study in this species (Klump and Okanoya, 1991).
Klump, Georg M., Gleich, Otto, O. Gleich, G.M. Klump   +3 more
core   +1 more source

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

The Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla, Laura A. B. Wilson, Khizar Hayat, Michael Doube, Vuong Tan Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Daisuke Koyabu   +7 more
wiley   +1 more source

Food‐solicitation displays in nestling birds: still begging for answers

Biological Reviews, EarlyView.
ABSTRACT Nestling begging is a key model for understanding animal communication and parent–offspring conflict. Dynamic begging displays are often interpreted as costly, honest signals of need, with honesty maintained by viability costs, as proposed in Godfray's influential signalling model.
Daniel Parejo‐Pulido, Tomás Redondo
wiley   +1 more source

The diagnostics and laser infrastructure at the Soft X‐ray Port of the European XFEL

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1531-1541, September 2026.
The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.
Patrik Grychtol, Vahagn Vardanyan, Pranav Bhardwaj, Michael Heber, David Doblas-Jimenez, Ekaterina Tikhodeeva, Serguei Molodtsov, Manuel Izquierdo   +7 more
wiley   +1 more source