Results 61 to 70 of about 47,365 (251)

Comparative Analysis of the Efficiency of Detecting Some Amplitude-Phase Modulated Signals in Wireless Communication Systems [PDF]

International Journal of Electronics and Telecommunications, 2019
This article presents the results of the research of noiseimmunity of wireless communication systems using signals that are formed on the basis of eight-position quadrature-amplitude modulation (8-QAM) and eight-position amplitude modulation of many ...
Andriy P. Bondariev, Ivan V. Horbatyi, Ivan P. Maksymiv, Sergiy I. Altunin   +3 more
doaj   +1 more source

Experimental demonstration of cap transmitter using very high speed IC hardware description language (VHDL) [PDF]

, 2015
Carrierless Amplitude Phase (CAP) Modulation is a multidimensional and multilevel of modulation scheme which it is strongly inspired by QAM modulation scheme. CAP does not depend on a carrier and it is much simpler.
Yusoff, Yusmahaida
core  

Sensitivity improvement of a laser interferometer limited by inelastic back-scattering, employing dual readout [PDF]

, 2015
Inelastic back-scattering of stray light is a long-standing and fundamental problem in high-sensitivity interferometric measurements and a potential limitation for advanced gravitational-wave detectors.
Meinders, Melanie, Schnabel, Roman
core   +3 more sources

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source

Reducing Inhomogeneous MT (ihMT) Acquisition Time Using Frequency Alternation at Low Duty Cycle for Single Offset (FALSO) MT Preparations

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 191-202, July 2026.
ABSTRACT Purpose To evaluate Frequency Alternation at Low duty cycle for Single Offset (FALSO) as a novel Magnetization Transfer (MT) preparation scheme to increase speed and/or spatial resolution of inhomogeneous MT (ihMT) MRI by reducing the number of volumes required.
Gopal Varma, Aaron K. Grant, Lucas Soustelle, Olivier M. Girard, Guillaume Duhamel, David C. Alsop   +5 more
wiley   +1 more source

Quantum noise in the position measurement of a cavity mirror undergoing Brownian motion [PDF]

, 1999
We perform a quantum theoretical calculation of the noise power spectrum for a phase measurement of the light output from a coherently driven optical cavity with a freely moving rear mirror. We examine how the noise resulting from the quantum back action
A. Dorsel, A. F. Pace, A. Gillespie, A. Heidmann, A. Heidmann, A. Luis, A. O. Caldeira, A. O. Caldeira, A. Yariv, B. C. Buchler, B. R. Mollow, C. Cohen-Tannoudji, C. Fabre, C. M. Caves, C. M. Caves, C. Schoenenberger, C. W. Gardiner, C. W. Gardiner, C. W. Gardiner, D. Hils, G. C. Bjorklund, G. C. Bjorklund, G. J. Milburn, H. M. Wiseman, H. M. Wiseman, H. P. Yuen, H. P. Yuen, I. Tittonen, I. Tittonen, K. A. Strain, K. Jacobs, K. Jacobs, K. Jacobs, K. Nakagawa, L. Diosi, L. Diosi, L. P. Ghislain, M. J. Collett, M. Ley, M. Ozawa, M. Pinard, M. Pinard, M. T. Jaekel, N. C. Wong, P. R. Saulson, P. Samphire, R. Loudon, R. S. Bondurant, R. W. P. Drever, S. Bose, S. Bose, S. Gnutzmann, S. Mancini, S. P. Vyatchanin, S. P. Vyatchanin, S. P. Vyatchanin, S. Schiller, T. D. Stowe, V. B. Braginsky, V. B. Braginsky, W. A. Edelstein, W. G. Unruh, W. G. Unruh, W. J. Munro, W.-T. Ni, Yi Pang   +65 more
core   +2 more sources

Two Novel Blind Equalization Algorithms for Rectangular Quadrature Amplitude Modulation Constellations

IEEE Access, 2016
Two novel blind equalization techniques for odd bit rectangular quadrature amplitude modulation (RQAM) signaling are proposed in this paper, namely, rectangular contour algorithm (RRECT CA) and improved rectangular contour algorithm (IRCA).
Qasim Umar Khan, Sara Viqar, Shahzad Amin Sheikh   +2 more
doaj   +1 more source

Maximum Euclidean distance network coded modulation for asymmetric decode-and-forward two-way relaying

, 2013
Network coding (NC) compresses two traffic flows with the aid of low-complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two-way relaying, where each receiver is collocated with a ...
Cao, Zhigang, Chen, Wei, Hanzo, Lajos
core   +1 more source

Fibre segment interferometry using code-division multiplexed optical signal processing for strain sensing applications [PDF]

, 2013
A novel optical signal processing scheme for multiplexing fibre segment interferometers is proposed. The continuous-wave, homodyne technique combines code-division multiplexing with single-sideband modulation.
Charrett, Thomas O. H., Kissinger, Thomas, Tatam, Ralph P.   +2 more
core   +1 more source

Parallel Mach-Zehnder modulators for quadrature amplitude modulation

IEICE Electronics Express, 2011
This paper describes optical quadrature amplitude modulation techniques using parallel Mach-Zehnder modulators (MZMs). Arbitrary constellations of optical signals can be generated by using a dual-parallel MZM which can independently control real and imaginary components of lightwaves, where each MZM should be driven by multi-level electric signals ...
openaire   +2 more sources