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2P4, 4F, 5F, AND 5G CONFIGURATIONS OF QUADRUPLY IONIZED ALUMINUM (ALV)

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA 1975年第12期65卷 1399-1403页

作者： BRILLET, WL ARTRU, MC OBSERV MEUDON DEPT ASTROPHYS FONDAMENTALE92190 MEUDONFRANCE

The analysis of Al v has been extended to the 2 p 4 4 f , 5 f , and 5 g configurations. The classification of 96 newly observed lines, in the ranges 456–705 Å and 1579–1621 Å, has led to the determination of all the 4 f levels, except the pair based on the 1 S 0 parent, as well as ten 5 f levels and seven unresolved pairs of 5 g levels. The structures of these configurations have been studied by means of parametric calculations. The first ionization energy of Al v is at 1 240684 cm −1 , computed from the polarization formula. New measurements of the 2 s 2 2 p 4 –2 s 2 p 5 transitions in Al vi are reported.

关键词： assignment algorithms Gravity Holographic gratings Ionization Polarization Vacuum ultraviolet

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Enhanced Crankback Signaling in Multi-Domain Optical Networks

Enhanced Crankback Signaling in Multi-Domain Optical Network...

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Conference on Optical Fiber Communication (OFC)/Collocated National Fiber Optic Engineers (NFOEC)

作者： Esmaeili, M. Xu, F. Ghani, N. Peng, M. Liu, Q. Univ New Mexico Albuquerque NM 87131 USA Wuhan Univ Wuhan 430072 Peoples R China Oak Ridge Natl Lab Oak Ridge TN 37830 USA

A novel solution is proposed for joint intra/inter-domain signaling crankback for multidomain DWDM lightpath setup. The scheme leverages existing intra/inter-domain routing protocol state and provides mechanisms to tr... 详细信息

ISBN: (纸本)9781557528841

关键词： assignment algorithms Dense wavelength division multiplexing Optical networks Optical signals Visibility Wavelength conversion Fiber optics and optical communications (060.0060) Networks (060.4250) Networks, assignment and routing algorithms (060.4251)

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Evaluation of the Elastic Optical Network Performance with Various Numbers of Spatial Modes

Evaluation of the Elastic Optical Network Performance with V...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Gao, Wenbo Cvijetic, Milorad Univ Arizona Coll Opt Sci Tucson AZ 85721 USA

We have established a network model involving routing algorithms and assignment of modulation formats and spectral and spatial modes enabled to provide more insights on impacts of relevant signal and network parameters.

ISBN: (纸本)9781943580279

关键词： assignment algorithms Nonlinear impairments Optical networks Routing algorithms Signal processing Space division multiplexing

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Data association combined with the probability hypothesis density filter for multitarget tracking

Data association combined with the probability hypothesis de...

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16th Conference on Signal and Data Processing of Small Targets

作者： Lin, L Bar-Shalom, Y Kirubarajan, T Univ Connecticut Dept ECE Storrs CT 06269 USA

ISBN: (纸本)081945351X

Multiple target tracking requires data association that operates in conjunction with filtering. When multiple targets are closely spaced, the conventional approach (MHT/assignment) may not give satisfactory results. This is mainly because of the difficulty in deciding what the number of targets is. Recently, the probability hypothesis density (PHD) filter, which propagates the PHD or the first moment instead of the full multitarget posterior density, was proposed in. (6-10) In this approach, the integral of the PHD over a region in the state space is the expected number of targets within this region and the peaks in the PHD can be regarded as the estimated locations of the targets at a given time step. In this approach the data association problem is not considered, i.e., the PHD is obtained only for a frame at a time. In our paper, a data association method combined with the PHD approach is proposed for multitarget tracking, i.e., we keep a separate tracker for each target, use the PHD filter to get the estimated number and locations of the targets at each time step, and then perform the "peak-to-track" association, whose results can provide information for PHD peak extraction at the next time step. Besides, by keeping a separate tracker for each target, our approach provides more information than the standard PHD filter. Using our approach, the multitarget tracking can be performed with automatic track initiation, maintenance, spawning, merging and termination. Simulation results demonstrate that our approach is computationally feasible and effective.

关键词： data association probability hypothesis density multitarget tracking peak extraction group target tracking assignment algorithms

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Towards Explainable Reinforcement Learning in Optical Networks: The RMSA Use Case

Towards Explainable Reinforcement Learning in Optical Networ...

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Optical Fiber Communications Conference and Exhibition (OFC)

作者： Ayoub, Omran Natalino, Carlos Monti, Paolo SUPSI Lugano Switzerland Chalmers Univ Technol Chalmers Sweden

We propose an approach to extract explanations from a trained reinforcement learning agent. Our analysis over three RMSA environment variations shows how the agent uses the input information, increasing our understand... 详细信息

ISBN: (纸本)9798350377583

关键词： assignment algorithms Machine learning Modulation Network topology Optical networks Wavelength assignment

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Avoiding Path-Vectors in Multi-Domain Optical Networks

Avoiding Path-Vectors in Multi-Domain Optical Networks

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Conference on Optical Fiber Communication (OFC 2009)

作者： Yannuzzi, Marcelo Masip, Xavi Tech Univ Catalonia Vilanova I La Geltru 08800 Spain

We show that a modified version of a path-vector protocol can drastically reduce the blocking and converge significantly faster, while exchanging less number of routing messages both during failure-free conditions and... 详细信息

ISBN: (纸本)9781424426065

关键词： assignment algorithms Network topology Optical networks Wavelength assignment Fiber optics and optical communications (060.0060) Networks (060.4250) Networks, assignment and routing algorithms (060.4251)

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Rerouting of 1+1 Optical Channels: Cost Benefits for Incrementally Planned Networks

Rerouting of 1+1 Optical Channels: Cost Benefits for Increme...

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Conference on Optical Fiber Communication (OFC 2009)

作者： Meusburger, Clara Schupke, Dominic A. Nokia Siemens Nerworks D-81669 Munich Germany

Re-optimizing 1+1 protected networks for multiple time periods can lead to cost benefits. We show these cost reductions for a topology and a demand scenario applying traffic affecting and unaffecting rerouting of opti... 详细信息

ISBN: (纸本)9781424426065

关键词： assignment algorithms Fiber networks Network topology Optical networks Wavelength assignment Fiber optics and optical communications (060.0060) Networks, network optimization (060.4256) Networks, protection and restoration (060.4261)

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Demonstration of All-optical Inverse Multiplexing in Elastic Optical Networks

Demonstration of All-optical Inverse Multiplexing in Elastic...

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Optical Fiber Communications Conference and Exhibition (OFC)

作者： Xu, Yingying Li, Juhao Zhu, Paikun Guo, Bingli Chen, Yuanxiang Zhong, Yucheng Wang, Yan Chen, Zhangyuan He, Yongqi Peking Univ State Key Lab Adv Opt Commun Syst & Networks Beijing 100871 Peoples R China

We propose all-optical inverse multiplexing in elastic optical networks using superchannel multicasting to achieve efficient spectrum utilization. We show the benefit by simulation and demonstrate the feasibility by e... 详细信息

ISBN: (纸本)9781557529930

关键词： assignment algorithms Coherent receivers Heterodyne detection Multiplexing Optical networks Wavelength conversion Coherent communications (060.1660) Fiber optics communications (060.2330) Networks (060.4250)

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Tracking with classification-aided multiframe data association

Tracking with classification-aided multiframe data associati...

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Conference on Signal and Data Processing of Small Targets

作者： Bar-Shalom, Y Kirubarajan, T Gokberk, C Univ Connecticut ECE Dept Storrs CT 06269 USA

ISBN: (纸本)0819450774

In most conventional tracking systems. only the tar-et kinematic information is used in measurement-to-track association. Target class information, which is typically used in postprocessing, can also be used to improve data association to give better tracking accuracy. In addition. the use of tar-et class information in data association can improve discrimination by yielding purer tracks and preserve their continuity. In this paper. we present the integrated use of target classification information and target kinematic information for target tracking. In our approach, target class information is integrated into the data association process using the two-dimensional (one track list and one measurement list) as well as multiframe (one track list and multiple measurement lists) assignments. The latter is an optimization based MHT. A generic model of the classifier output is considered and its use in association likelihoods is discussed. The multiframe association likelihood is developed to include the classification results based on the confusion matrix that specifies the accuracy of the target classifier. The objective is to improve association results using class information when the kinematic likelihoods are similar for different targets, i.e., there is ambiguity in using kinematic information alone. Performance comparison with and without the use of class information in data association is presented on a ground target tracking problem where targets are moving in an open field and their tracks can merge, branch and cross. Simulation results quantify the benefits of classification aided data association for improved target tracking, especially in the presence of association uncertainty in kinematic measurements. Also the benefit of S-D (multiframe) association vs. 2-D association is investigated for different quality classifiers. The main contribution is the development of the methodology to incorporate exactly the classification information into multidimensional (mu

关键词： multitarget-tracking feature-aided tracking classification-aided tracking ground target tracking multiframe association assignment algorithms

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Network-Efficient Superchannel Transmission by the Multichannel Compensation of Nonlinearities

Network-Efficient Superchannel Transmission by the Multichan...

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Optical Fiber Communications Conference and Exhibition (OFC)

作者： Lima, Tiago C. Rozental, Valery N. Barreto, Andre N. Mello, Darli A. A. Univ Brasilia OCNLab Dept Elect Engn BR-70910900 Brasilia DF Brazil

We investigate potential network-cost savings due to the multichannel compensation of nonlinearities generated by subcarriers within the same superchannel. Two case studies (European and German networks) demonstrated ... 详细信息

ISBN: (纸本)9781557529930

关键词： assignment algorithms Attenuation coefficient Optical amplifiers Optical networks Optical systems Signal processing Fiber optics and optical communications (060.0060) Networks, network optimization (060.4256)

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