Results 71 to 80 of about 3,824 (171)

Synchronous demodulator [PDF]

open access: yes, 1991
A synchronous demodulator includes a switch which is operated in synchronism with an incoming periodic signal and both divides and applies that signal to two signal channels.
Sutton, John F.
core   +1 more source

Colorless devices and reception techniques for polarization multiplexed communications [PDF]

open access: yes, 2015
Future optical networks call for flexible, high performance and low cost coherent optical receivers. We present here several advances towards such receivers, including integrated optical couplers with ultra-broad bandwidth, as well as novel reception ...
Alonso-Ramos, C.   +8 more
core   +1 more source

Realization of OFCC based transimpedance mode instrumentation amplifier [PDF]

open access: yes, 2016
The paper presents an instrumentation amplifier suitable for amplifying the current source transducer signals. It provides a voltage output. It has a high gain, common mode rejection ratio and gain independent bandwidth.
Ahalawat, Varun Kumar   +4 more
core   +2 more sources

IoT and machine learning models for multivariate very short‐term time series solar power forecasting

open access: yesIET Wireless Sensor Systems, Volume 14, Issue 6, Page 381-395, December 2024.
The authors’ work pioneers the integration of the Internet of Things (IoT) into solar power systems. The authors’ study focuses on solar irradiance forecasting using long short‐term memory and Bi‐LSTM models, achieving high accuracy. The solar irradiance forecasts are evaluated in terms of root‐mean‐square error (RMSE) and mean absolute error (MAE) in ...
Su Kyi, Attaphongse Taparugssanagorn
wiley   +1 more source

Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer

open access: yes, 2004
A suspension-point interferometer (SPI) is an auxiliary interferometer for active vibration isolation, implemented at the suspension points of the mirrors of an interferometric gravitational wave detector.
Abbott   +21 more
core   +3 more sources

The Sunyaev-Zel'dovich Infrared Experiment: A Millimeter-wave Receiver for Cluster Cosmology [PDF]

open access: yes, 1997
Measurements of the Sunyaev-Zel'dovich (S-Z) effect towards distant clusters of galaxies can be used to determine the Hubble constant and the radial component of cluster peculiar velocities.
A. E. Lange   +18 more
core   +2 more sources

Architecture Design and Ground Performance of Netherlands‐China Low‐Frequency Explorer

open access: yesRadio Science, Volume 59, Issue 8, August 2024.
Abstract The Netherlands‐China Low‐Frequency Explorer (NCLE) (Boonstra et al., 2017, https://www.ursi.org/proceedings/procGA17/papers/Paper_J19‐2(1603).pdf; Chen et al., 2020, https://ui.adsabs.harvard.edu/abs/2020AAS…23610203C/abstract) is a radio instrument for astrophysical studies in the low‐frequency range (80 kHz–80 MHz).
Sukanth Karapakula   +38 more
wiley   +1 more source

A low-noise, high-SNR and large-dynamic-range balanced homodyne detector for broadband squeezed light measurement

open access: yesResults in Physics
Squeezing-based quantum metrology has been extensively applied in the field of precision measurement. Performance characteristics of squeezed light are obtained by a balanced homodyne detector.
Jinrong Wang   +5 more
doaj   +1 more source

A low-offset low-voltage CMOS Op Amp with rail-to-rail input and output ranges [PDF]

open access: yes, 1996
A low voltage CMOS op amp is presented. The circuit uses complementary input pairs to achieve a rail-to-rail common mode input voltage range. Special attention has been given to the reduction of the op amp's systematic offset voltage.
Gierkink, Sander L.J.   +5 more
core   +3 more sources

Design of a 4.2-5.4 GHz Differential LC VCO using 0.35 m SiGe BiCMOS Technology [PDF]

open access: yes, 2006
In this paper, a 4.2-5.4 GHz, Gm LC voltage controlled oscillator (VCO) for IEEE 802.11a standard is presented. The circuit is designed with AMS 0.35´m SiGe BiCMOS process that includes high-speed SiGe Heterojunction Bipolar Transistors (HBTs).
Bozkurt, Ayhan   +7 more
core   +1 more source

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