We measured foveal flicker sensitivity with and without external added temporal noise at various levels of retinal illuminance and described the data with our model of flicker sensitivity comprising: (i) low-pass filtering of the flickering signal plus external temporal and/or quantal noise by the modulation transfer function (MTF) of the retina (R): (ii) high-pass filtering in proportion to te...

Hole mobility and flicker noise characteristics of uniaxially strained (110)/〈110〉 Si0.75Ge0.25 pFINFETs (SSGOI0.25) are investigated in this letter. Equivalent gate referred flicker noise in SSGOI0.25 is dominated by correlated number and mobility fluctuation in the low-bias regime and Hooge mobility fluctuation in the high-bias regime. The extracted Hooge parameter in SSGOI0.25 and in Si pFIN...

The bulk of the video content available today over the Internet and over mobile networks suffers from many imperfections caused during acquisition and transmission. In the case of user-generated content, which is typically produced with inexpensive equipment, these imperfections manifest in various ways through noise, temporal flicker and blurring, just to name a few. Imperfections caused by co...

A deep understanding of how to reduce flicker phase noise (PN) in oscillators is critical supporting ultra-low PN frequency generation for the advanced communications and other emerging high-speed applications. Unfortunately, current literature either full conflicting theories ambiguities or too complex mathematics, hiding physical insights. In this brief, we comprehensively review evolution up...

Due to the wind speed variation, wind shear and tower shadow effects, grid connected wind turbines are the sources of power fluctuations which may produce flicker during continuous operation. This paper presents a model of an MW-level variable speed wind turbine with a doubly fed induction generatorto investigate the flicker emission and mitigation issues. An individual pitch control (IPC) stra...

PURPOSE Because of the limited contrast range, increasing the duration of the noise frame is often the only option for increasing the masking potency of external, white temporal noise. This, however, reduces the high-frequency cutoff beyond which noise is no longer white. This study was conducted to determine the longest noise frame duration that produces the strongest masking effect and still ...

The design of a low noise figure (NF), high conversion gain (CG) double-balanced, Gilbert-cell mixer is presented. Since the noise figure of the RF CMOS mixer is strongly affected by flicker noise (1/f), a dynamic current injection technique is used to reduce the flicker noise corner frequency. The current injection circuitry comprises 3 pMOS to inject current pulses at the switching instants. ...

Fundamental limits for photon counting and photon energy measurement are reviewed for CCD and CMOS imagers. The challenges to extend photon counting into the visible/nIR wavelengths and achieve energy measurement in the UV with specific read noise requirements are discussed. Pixel flicker and random telegraph noise sources are highlighted along with various methods used in reducing their contri...

The generation of additional interface traps in the pinch-off region and the threshold voltage shift due to hotelectron stressing have been shown to cause 1-3 orders of magnitude increase in the flicker noise density. This flicker noise “overshoot” can easily degrade the performance/resolution of analog circuits by 6-18dB. An improved flicker noise model which is capable of accurately predictin...