Results 81 to 90 of about 7,286,512 (152)

Transient response and phase-frequency characteristics of AGC controlled MEMS resonant pressure sensors

Chinese Journal of Mechanical Engineering
This article presents an automatic gain control (AGC) system with a phase shifter to investigate the nonlinear phase-frequency characteristics resulting from the phase error between the driving force and the speed of the resonant beam in micro ...
Nan Zhu, Xudong Fang, Songli Wang, Wenqiang Zhuo, Libo Zhao, Bian Tian, Zhongkai Zhang   +6 more
doaj   +1 more source

Gain and phase of segment angles relative to galvanic vestibular stimulation (GVS), showing intermodal reweighting.

, 2014
Blue color indicates gain responses about changing of visual amplitude and red color indicates gain responses about vibration. Dashed line indicates intermodal reweighting.
Sungjae Hwang (518339), Peter Agada (518340), John J. Jeka (315518), Tim Kiemel (315517)   +3 more
core   +1 more source

Visual information potentiates incremental VOR adaptation

Journal of NeuroEngineering and Rehabilitation
Introduction Vestibulo-ocular reflex (VOR) response to a given head rotation can be modified through adaptation by inducing a visuo-vestibular mismatch.
Eva Riché, Vincent Lagadec, Denis Pélisson, Clément Désoche, Caroline Froment Tilikete, Ruben Hermann   +5 more
doaj   +1 more source

Signal regeneration techniques for advanced modulation formats

, 2014
We review recent results on all-optical regeneration of phase encoded signals based on phase sensitive amplification achieved by avoiding phase-to-amplitude conversion in order to facilitate the regeneration of amplitude/phase encoded (QAM ...
Horak, P., Hesketh, G., Parmigiani, F., Petropoulos, P., Richardson, D.J., Bottrill, K., David J. Richardson, Graham Hesketh, Periklis Petropoulos, Peter Horak, Kyle R. Bottrill, Francesca Parmigiani   +11 more
core   +1 more source

Effects of Deformation of Main Reflector of Double Reflector Spherical Antenna on Its Aperture Field - ROT-54/2.6 Antenna Case

Journal of Telecommunications and Information Technology
The aim of this study is to model the impact of main reflector deformations in a double-reflector spherical antenna system on the phase distribution of the electromagnetic field across the aperture and the associated gain loss.
Arevik Sargsyan, Narek Hambardzumyan
doaj   +1 more source

Design and implementation of a self-correcting non-retrodirective cross-eye jamming system using reference amplitude ratio and phase difference

Scientific Reports
This study presents a self-correction method for a non-retrodirective cross-eye jamming (NRCJ) system based on the measurement of reference amplitude ratio and phase difference (ARPD).
Junghoon Lee, Byungkoo Park, Jinwoo Han, Jeil Jo   +3 more
doaj   +1 more source

True-Time-Delay Unit Cell for Ultra-Wideband Single- and Wideband Dual-Polarized Large Reflectarrays

IEEE Access
This paper presents the design and experimental validation of novel ultra-wideband true-time-delay (TTD) reflectarray unit cells for large-scale antenna applications. Two configurations are proposed: a single-polarized unit cell and a dual-polarized unit
Reza Shamsaee Malfajani, Karim Glatre, Jean-Jacques Laurin   +2 more
doaj   +1 more source

Phase-Error Compensation of a Pulsed Power Amplifier with a Vector Modulator in Radar Applications

, 2016
This paper describes a phase-error compensation method employing the digital predistortion for pulsed power amplifiers in radar applications. The predistortion method was evaluated for the power amplifier based on the commercially available Avago ...
Pawel Gontarek, Grzegrzółka, Maciej, Pawel Zawada, Barmuta, Pawel, Gontarek, Pawel, Zawada, Pawel, Arkadiusz Lewandowski, Lewandowski, Arkadiusz, Pawel Barmuta, Maciej Grzegrzolka   +9 more
core   +1 more source

Detection and correction of linear phase error for Fourier transform spectrometer using phase correction method

, 2011
Idealy, an interferogram is an even function of the path differences; it suffices to computer the cosine Fourier transform of the interferogram from the zero optical path to the max to produce the spectrum.
LiuCaifang, WangCailing, Wang Cailing, LiYushan, HuBingliang, LiuXuebin   +5 more
core  

A 1.5-GS/s 12-bit 58.9-dB SNDR Pipelined ADC with Weight-Regulated Dither-Based Interstage Gain Error Calibration. [PDF]

Sensors (Basel)
Xu S, Zhang Z, Zhang D, Wu G, Zhan L.
europepmc   +1 more source