Results 31 to 40 of about 3,670,840 (396)
Bandlimited Intensity Modulation [PDF]
IEEE Transactions on Communications, 2012 In this paper, the design and analysis of a new bandwidth-efficient signaling method over the bandlimited intensity-modulated direct-detection (IM/DD) channel is presented. The channel can be modeled as a bandlimited channel with nonnegative input and additive white Gaussian noise (AWGN).
Mehrnaz Tavan +2 more
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Design and Implementation of Free Space Simplex Video – Laser Communication system [PDF]
Engineering and Technology Journal, 2009 The optical communication system consists of a transmitter uses a laser beam ofa wavelength 650 nm as a carrier in free space, and a receiver uses PIN diode as adetector .
Hyder Abdul +2 more
doaj +1 more source
Intensity-modulated radiotherapy - what is it? [PDF]
Cancer Imaging, 2004 Intensity-modulated radiotherapy (IMRT) is one of the most important recent developments in oncology. It enables precise conformation of the radiation dose to the target volume. It has the potential to significantly reduce long-term morbidity and improve local control.
Taylor, A, Powell, M E B
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Intensity modulated proton therapy [PDF]
The British Journal of Radiology, 2015 Intensity modulated proton therapy (IMPT) implies the electromagnetic spatial control of well-circumscribed "pencil beams" of protons of variable energy and intensity. Proton pencil beams take advantage of the charged-particle Bragg peak-the characteristic peak of dose at the end of range-combined with the modulation of pencil beam variables to create ...
H M, Kooy, C, Grassberger
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Journal of Lightwave Technology, 2020 The Internet plays an essential role in modern societies and in the amount of sensitive data transported over the optical networks that shows its' importance has increased drastically.
F. Futami, K. Tanizawa, Kentaro Kato
semanticscholar +1 more source
Intensity modulation based optical proximity optimization for the maskless lithography.
Optics Express, 2020 The undesirable optical proximity effect (OPE) that appeared in the digital micro-mirrors device (DMD) based maskless lithography directly influences the final exposure pattern and decreases the lithography quality.
Jianghui Liu +5 more
semanticscholar +1 more source
Nonlinear Channel Equalization Using Gaussian Processes Regression in IMDD Fiber Link
IEEE Photonics Journal, 2022 Gaussian processes regression (GPR)-aided nonlinear channel equalizer (CE) is experimentally demonstrated in a multi-level intensity modulation and direct detection fiber link.
Xiang Li +4 more
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Performance of BPSK subcarrier intensity modulation free-space optical communications using a log-normal atmospheric turbulence model [PDF]
, 2010 In this paper, we present simulation results for the bit error rate (BER) performance and the fading penalty of a BPSK - subcarrier intensity modulation (BPSK-SIM) free-space optical (FSO) communication link in a log-normal atmospheric turbulence model ...
S. S. Muhammad +13 more
core +1 more source
Intensity-Modulated Radiotherapy
The Cancer Journal, 2002 Intensity-modulated radiotherapy represents a recent advancement in conformal radiotherapy. It employs specialized computer-driven technology to generate dose distributions that conform to tumor targets with extremely high precision. Treatment planning is based on inverse planning algorithms and iterative computer-driven optimization to generate ...
Steven A, Leibel +17 more
openaire +4 more sources
IEEE Photonics Journal, 2022 Color shift keying (CSK) communicates information by emitting light that hops instantaneously from one chromaticity to another. This rapid hopping is too fast to be noticeable by human vision, which senses only the time-averaged color, as the human ...
Amena Ejaz Aziz, Kainam Thomas Wong
doaj +1 more source