971 resultados para Divisor of Zero


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Federal Highway Administration, Washington, D.C.

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Rev. 1956.

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"Project sponsored by the Office of Naval Research under Contract N8onr-500."

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"Contract AT(30-1)-2789."

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"Cornell Aeronautical Laboratory internal research."

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Mode of access: Internet.

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Thesis (M.S.)--University of California, Berkeley, 1899.

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We study the statistics of optical data transmission in a noisy nonlinear fiber channel with a weak dispersion management and zero average dispersion. Applying analytical expressions for the output probability density functions both for a nonlinear channel and for a linear channel with additive and multiplicative noise we calculate in a closed form a lower bound estimate on the Shannon capacity for an arbitrary signal-to-noise ratio.

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The authors present the impact of asymmetric filtering of strong (e.g. 35 GHz) optical filters on the performance of 42.7 Gb/s 67% (carrier suppressed return to zero)-differential phase shift keying systems. The performance is examined (in an amplified spontaneous emission (ASE) noise-limited regime and in the presence of chromatic dispersion) when offsetting the filter at the receiver by substantial amounts via balanced, constructive and destructive single-ended detections. It is found that with a slight offset (vestigial side band) or an offset of almost half of the modulation frequency (single-side band), there is a significant improvement in the calculated 'Q'. © The Institution of Engineering and Technology 2013.

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AMS Subject Classification 2010: 11M26, 33C45, 42A38.