Results 301 to 310 of about 5,337,605 (357)
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European Conference on Optical Communication, 2018
We experimentally demonstrate the first single-wavelength 100-Gb/s PAM-4 TDM-PON transmission in C-band using simplified and phase-insensitive heterodyne coherent detection. Power budget of over 32 dB is achieved after 20-/40-km fiber transmission.
Junwen Zhang +3 more
semanticscholar +1 more source
We experimentally demonstrate the first single-wavelength 100-Gb/s PAM-4 TDM-PON transmission in C-band using simplified and phase-insensitive heterodyne coherent detection. Power budget of over 32 dB is achieved after 20-/40-km fiber transmission.
Junwen Zhang +3 more
semanticscholar +1 more source
Simplified coherent detection of CPM
IEEE Transactions on Communications, 1995Summary: This proposal avoids the complex matched-filter bank required for optimal detection. Instead, two simple lowpass filters are employed, followed by a sampler and a Viterbi algorithm that accounts for ISI. For representative modulations, it is shown that near-optimal performance can be achieved with just two samples per baud.
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Non-Coherent Detection for Diffusive Molecular Communication Systems
IEEE Transactions on Communications, 2017We study non-coherent detection schemes for molecular communication (MC) systems with negligible inter-symbol interference that do not require knowledge of the channel state information (CSI). In particular, we first derive the optimal maximum likelihood
V. Jamali +3 more
semanticscholar +1 more source
Multiview Detection with Shadow Transformer (and View-Coherent Data Augmentation)
ACM Multimedia, 2021Multiview detection incorporates multiple camera views to deal with occlusions, and its central problem is multiview aggregation. Given feature map projections from multiple views onto a common ground plane, the state-of-the-art method addresses this ...
Yunzhong Hou, Liang Zheng
semanticscholar +1 more source
International Journal of Modern Physics C, 2012
We apply the mathematics of cognitive radio to a single receiver to obtain a new coherent energy metric. This allows us to derive the time correlation law separating Gaussian colored noise from coherent signal energy.
P. D. MORLEY, JERRY W. BROWN
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We apply the mathematics of cognitive radio to a single receiver to obtain a new coherent energy metric. This allows us to derive the time correlation law separating Gaussian colored noise from coherent signal energy.
P. D. MORLEY, JERRY W. BROWN
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Quantum sensing: target detection with coherence
2023 IEEE International Conference on Consumer Electronics (ICCE), 2023We propose a novel approach for target detection based on quantum coherence. We exploit a time-bin quantum interferometer to create sequences of coherent optical pulses that are sent towards a target. The photons scattered off the target are then analyzed, and the observed coherence is used as a parameter to distinguish signal photons from noise ...
Sajeed, Shihan +3 more
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Coherent Detection of DQPSK for Tolerance to Coherent Crosstalk
Coherent Optical Technologies and Applications, 2008Coherent crosstalk is a significant challenge in OCDM/A systems especially for high spectral efficiency coherent implementations. We study its impact on DQPSK with coherent detection. An improvement in performance is seen over direct detection.
A. Agarwal +5 more
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Coherence requirement for partially coherent correlation detection
Applied Physics B Photophysics and Laser Chemistry, 1983The coherence requirement for correlation detection is determined using the theory of partially coherent light. It is shown that the requirement for temporal coherence strongly dependes on the spatial frequency and the spatial extension of the target (i.e., space bandwidth product).
F. T. S. Yu, Y. W. Zhang, S. L. Zhuang
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Fast stereovision by coherence detection
1997A new approach to stereo vision based on similarities between optical flow estimation and disparity computation is introduced. The fully parallel algorithm utilizes fast filter operations and aliasing effects of simple disparity detectors within a coherence detection scheme.
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Ring-coupled chaotic generator for coherent and non-coherent detection
IFAC Proceedings Volumes, 2013Abstract This paper deals with chaotic encryption and observer synthesis for coherent detection using a new ring-coupled map firstly introduced by Lozi. The specificity of the switched map under investigation is that it exhibits excellent properties for chaotic encryption, but has no standard solution for the observer design.
Andrea Espinel, Ina Taralova
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