Results 11 to 20 of about 669,562 (292)

Noise Figure Degradation in Balanced Amplifiers [PDF]

open access: yesIEEE Microwave and Wireless Components Letters, 2017
Balanced amplifiers suffer from the noise figure performance in comparison with a stand-alone amplifier even with an ideal input divider. The noise parameters degrade further with an imperfect divider. We present exact and approximate analytical results for the noise figure and noise parameters of the balanced amplifier in divider topology. Measurement
Akif Alperen Coskun, Abdullah Atalar
openaire   +5 more sources

Noise-trained DNNs can partly generalize to other image distortions. [PDF]

open access: yes, 2021
(a) Examples of images used to test the impact of salt-and-pepper noise, low-pass filtering, and high-pass filtering on DNN performance. Image manipulations followed the methods described in [29]. Bison image by Frank Tong.
Hojin Jang (11819811)   +2 more
core   +1 more source

Figure 6 [PDF]

open access: yes, 2021
Figure 6: Selection on noise.
Markéta Vlková (11048709)
core   +3 more sources

Noise-trained VGG-19 outperforms human observers and other DNNs. [PDF]

open access: yes, 2021
(a) Mean classification accuracy of noise-trained VGG-19 (blue), human observers (gray), and pretrained DNNs (red) for objects in pixelated Gaussian noise (solid lines, closed circles) and Fourier phase-scrambled noise (dashed lines, open circles). Noise-
Hojin Jang (11819811)   +2 more
core   +1 more source

Noise-trained VGG-19 provides a better model of human cortical responses to objects in noise. [PDF]

open access: yes, 2021
(a) Classification accuracy for fMRI responses in individual visual areas for clean objects (black filled circles), objects in pixelated Gaussian noise (gray filled circles) and Fourier phase-scrambled noise (gray open circles).
Hojin Jang (11819811)   +2 more
core   +1 more source

Noise Figure Measurement of Differential Amplifiers Using non-Ideal Baluns [PDF]

open access: yes, 2011
This paper analyzes the noise and gain measurement of microwave differential amplifiers using two passive baluns. A general model of the baluns is considered, including potential losses and phase/amplitude unbalances.
García Pérez, Oscar Alberto   +7 more
core   +2 more sources

Gain and Noise Figure Performance of Erbium-Doped Fiber Amplifiers [PDF]

open access: yesKirkuk Journal of Science, 2008
Fiber loss is a fundamental limitation in realizing long haul point–to-point fiber optical communication links and optical networks. One of the advanced technologies achieved in recent years is the advent of erbium doped fiber amplifiers (EDFAs) that has
Banaz O. Rashid, Perykhan.M. Jaff
doaj   +1 more source

Noise Performance Investigation of AlGaN/GaN HEMT With Tall Gate Stem for Millimeter-Wave LNA Application

open access: yesIEEE Journal of the Electron Devices Society, 2023
In this research, $\Gamma $ -gated AlGaN/GaN HEMTs with different layout designs and heights of gate stems were fabricated to investigate their impacts on the noise performance in the Ka-band.
Ping-Hsun Lee   +6 more
doaj   +1 more source

Noise destroys feedback enhanced figure-ground segmentation but not feedforward figure-ground segmentation

open access: yesFrontiers in Physiology, 2012
Figure-ground (FG) segmentation is the separation of visual information into background and foreground objects. In the visual cortex, FG responses are observed in the late stimulus response period, when neurons fire in tonic mode, and are accompanied by ...
August eRomeo   +4 more
doaj   +1 more source

Design of reconfigurable circularly polarised double folded inverted‐L antenna with rectangular ground plane using HFSS

open access: yesIET Networks, 2020
A novel design of reconfigurable circularly polarised antenna is proposed and developed in the present work. The circularly polarised antenna consists of two linearly polarised inverted‐L antenna elements with double‐folded arms. To improve the impedance
Padakandla Chenna Praveen Kumar   +1 more
doaj   +1 more source

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