Results 21 to 30 of about 669,562 (292)
Multi-Way Noiseless Signal Amplification in a Symmetrical Cascaded Four-Wave Mixing Process
Photonics, 2022 According to the fundamental laws of quantum optics, vacuum noise is inevitably added to the signal when one tries to amplify a signal. However, it has been recently shown that noiseless signal amplification can be realized when a phase-sensitive process
Hailong Wang +5 more
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Processing of figure and background motion in the visual system of the fly [PDF]
, 1989 Reichardt W, Egelhaaf M, Guo A-K. Processing of figure and background motion in the visual system of the fly. Biological Cybernetics.
Egelhaaf, M. +5 more
core +2 more sources
Noise-trained DNNs can generalize to real-world noisy conditions. [PDF]
, 2021 (a) Top 1 and top 5 accuracies of pretrained VGG-19 (red) and noise-trained VGG-19 (blue) at classifying vehicles in noise-free or noisy weather conditions.
Hojin Jang (11819811) +2 more
core +1 more source
A Low Power CMOS UWB LNA with Sub-1V Supply Voltage and Noise Cancellation Technique [PDF]
مجله مدل سازی در مهندسیLow noise amplifiers (LNA) in RF receivers are usually the first block after the antenna that amplify the signal received from the antenna with negligible noise and distortion.
Mehdi Alinejad, Emad Ebrahimi
doaj +1 more source
Decreased noise figure measurement uncertainty in Y factor method [PDF]
Advances in Radio Science, 2013 Almost always noise figure is measured today by using a matched noise source delivering two different but known noise temperatures (Y factor method). In commercially available noise sources these temperatures are characterized by the excess noise ratio ...
I. Gaspard
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FULLY OPTIMIZED ULTRA WIDEBAND RF RECEIVER FRONT END
Jordanian Journal of Computers and Information Technology, 2022 This paper proposes a novel and fully optimized Ultra-wideband rf receiver front end in UMC 180nm 1P6M CMOS process. The heterodyne architecture used in this work does not use the on-chip image reject mixer.
Rajesh Khatri, D. K. Mishra
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Optimisation of DSF and SOA based phase conjugators by incorporating noise-suppressing fibre gratings [PDF]
, 1997 We compare the performance of dispersion-shifted-fibre (DSF) and semiconductor-optical-amplifier (SOA) based phase conjugators for a 10 Gb/s non-return-to-zero system with respect to conversion efficiency, noise figure and distortion.
Laming, R.I. +4 more
core +1 more source
Micromachines, 2023 In this paper, AlGaN/GaN high-electron-mobility transistors (HEMTs) with ohmic etching patterns (OEPs) “fabricated to improve device radio frequency (RF) performance for Ka-band applications” are reported.
Ming-Wen Lee +4 more
doaj +1 more source
Micromachines, 2023 We present here a performance comparison of quantum-dash (Qdash) semiconductor amplifiers (SOAs) with three, five, eight, and twelve InAs dash layers grown on InP substrates. Other than the number of Qdash layers, the structures were identical. The eight-
Youxin Mao +17 more
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Noise Figure Reduction Techniques in LNA's for Wide Band Multistandard RF Receivers [PDF]
, 2004 LNA's (Low Noise Amplifier) are widely used in wireless portable personal communication systems; the LNA noise directly affects the overall system performances. Here it is shown how the Noise Figure of a RF (Radio Frequency) Receiver can be reduced while
CASTELLO, RINALDO +2 more
core +1 more source