Results 71 to 80 of about 83,035 (146)

Upregulation of transmitter release probability improves a conversion of synaptic analogue signals into neuronal digital spikes

Molecular Brain, 2012
Action potentials at the neurons and graded signals at the synapses are primary codes in the brain. In terms of their functional interaction, the studies were focused on the influence of presynaptic spike patterns on synaptic activities.
Yu Jiandong, Qian Hao, Wang Jin-Hui
doaj   +1 more source

A Multi Antenna Receiver for Galileo SoL Applications [PDF]

, 2008
One of the main features of the Galileo Satellite Navigation System is integrity. To ensure a reliable and robust navigation for Safety of Life applications, like CAT III aircraft landings, new receiver technologies are indispensable.
Cuntz, Manuel, Denks, Holmer, Hornbostel, Achim, Konovaltsev, Andriy, Meurer, Michael, Schroth, Arno   +5 more
core  

An improved kT/C noise cancellation technique with presampling for high‐speed SAR ADCs

Electronics Letters
The kT/C noise cancellation technique can effectively reduce the digital‐to‐analog converter (DAC) size for successive approximation register ADCs and thus relax the burden for input drivers and reference buffers.
Yuanfan Gu, Kaipeng Wang, Tiange Yi, Xiaoguo Chen, Shiheng Yang, Jiaxin Liu   +5 more
doaj   +1 more source

Digital switchover in Europe [PDF]

, 2006
This article discusses the political, economic, technological and human aspects of the digital switchover in Europe and explores various policies for managing the process. The article first examines the advantages and drawbacks of digital switchover, and
Iosifidis, P.
core   +1 more source

EMBRACE@Nancay: An Ultra Wide Field of View Prototype for the SKA

, 2014
A revolution in radio receiving technology is underway with the development of densely packed phased arrays for radio astronomy. This technology can provide an exceptionally large field of view, while at the same time sampling the sky with high angular ...
Censier, B., Karastergiou, A., Olofsson, A. O. H., Renaud, P., Serylak, M., Taffoureau, C., Torchinsky, S. A.   +6 more
core   +3 more sources

Design and implementation of a modified fourier analysis harmonic current computation technique for power active filters using DSPs [PDF]

, 2001
The design and implementation of a harmonic current computation technique based on a modified Fourier analysis, suitable for active power filters incorporating DSPs is presented.
Akagi, Aredes, Choe, Czarnecki, Czarnecki, El-Habrouk, Enslin, Enslin, Filipski, Grady, Jou, Kim, Koozehkanani, Koozehkanani, Koozehkanani, Li, Liu, Luo, M. El-Habrouk, M.K. Darwish, Mehta, Morãn, Pouliquen, Van Harmelen, Väliviita, Welsh   +25 more
core   +1 more source

A 23.7‐uW 93.5‐dB SNDR delta‐sigma modulator for healthcare and medical diagnostics

Electronics Letters
This paper presents a high‐precision, low‐power delta‐sigma modulator (DSM) designed for healthcare and medical diagnostics. It utilizes a hybrid switching integrator to reduce distortion caused by the non‐linear on‐resistance of switches at a low supply
Jianguo Hu, Yao Yao, Renfei Zou, Jiajun He, Deming Wang   +4 more
doaj   +1 more source

Capacitive digital-to-analogue converters with least significant bit down in differential successive approximation register ADCs

The Journal of Engineering, 2014
This Letter proposes a least significant bit-down switching scheme in the capacitive digital-to-analogue converters (CDACs) of successive approximation register analog-to-digital converter (ADC).
Lei Sun, Kong-Pang Pun, Wai-Tung Ng
doaj   +1 more source

A Strategy for Controlling the LHC Magnet Currents [PDF]

, 1996
The LHC will require an unprecedented precision of a few ppm in the control of the current in the major magnetic circuits. As a result of the optimisation of the machine design, the machine will be powered in eight sectors with separate power converters.
Barnett, I, Fernqvist, G, Hundzinger, D, Perréard, J C, Pett, John G   +4 more
core  

Design of a Versatile and Low Cost μVolt Level A to D Conversion System for Use in Medical Instrumentation Applications

EURASIP Journal on Advances in Signal Processing, 2008
Modern medical facilities place considerable reliance on electronic instrumentation for purposes of calibration and monitoring of therapeutic processes, many of which employ electrical and electronic apparatus that itself generates considerable levels of
Neil Robinson, Kerry Williams
doaj   +1 more source