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FDTD 二维

于 2021-03-26 发布文件大小:11KB

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二维FDTD算法仿真，并带完全匹配层，输入波形为高斯波、平面波(Two dimensional FDTD algorithm is simulated, with a complete matching layer, and the input waveform is Gao Sibo and plane wave)

文件列表：

FDTD_二维\FDTD.zip, 6075 , 2017-05-13
FDTD_二维\FDTD_31.m, 1029 , 2016-04-03
FDTD_二维\FDTD_32.m, 2806 , 2016-09-21
FDTD_二维\FDTD_33.m, 3782 , 2016-03-02
FDTD_二维\FDTD_34.m, 4182 , 2016-03-22
FDTD_二维\FDTD_35.m, 4793 , 2016-03-02
FDTD_二维, 0 , 2017-05-13

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小黄鱼普通会员
2023-02-23 11:09:20
回复小黄鱼

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3paper3
新型改进光双二进制传输的编解码方案提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)

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emd.m经验模态分解的程序，这个是学习希尔伯特黄变换（hht）的重要部分(emd.m EMD program, this is the study of Hilbert-Huang Transform (hht) important part of the)

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蕞优分组周游路线问题是一类物流智能调度问题，是众多的计算难度极大的组合爆炸问题之一。自从运输问题最早是由Hitchcock在1941年提出的[2][4]后，人们对这一类问题给予了极大的关注并进行了大量的研究，提出了有效解决问题的优化算法——单纯形法的变形[2]。但由于问题规模的扩大，纯数学方法在允许的时间和空间上都很难找到问题的最优解，于是人们开始转向寻找问题的近似最优解，遗传算法以其在求解最优化问题中的独特的自组织性、自适应性很快进入人们的视野。经典的遗传算法对于求解多目标的NP完全性问题非常有效，但对于有多个限制条件的多目标最优化问题缺显得有点力不从心，很难得到稳定度较高、收敛较快的解。本文提出的双层遗传算法模型给这一类问题提供了一个很好的解决方法，虽然建模条件限制了描述的问题的通用性，有待推广，但它能有效利用问题的领域知识，提高了求解效率，保证了解的可行性和最优性，算法思想极具推广潜力，可在其它物流智能调度问题求解算法设计中借鉴。(The most optimal packet travel route problem is a kind of intelligent logistic scheduling problem is one of combinatorial calculation difficult problem many. Since the transportation problem was first proposed by Hitchcock in 1941 after the [2][4], the people of this class of problems given great attention and made a lot of research, the deformation of [2] optimization, simplex method algorithm is effective to solve the problem of. But due to the expansion of the scale of the problem, the pure mathematical methods in the allowed time and space are very difficult to find the optimal solution of the problem, so people begin to turn to the approximate optimal solution for the problem, genetic algorithm in solving optimization problems with its unique in the self-organizing, adaptive soon entered people s field of vision. Very effective classical genetic algorithm for solving multi-objective NP complete problems, but for the multi-objective optimization problem with multiple constraints. I)

2014-08-18 10:05:55下载

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faigang_v82
时间序列数据分析中的梅林变换工具，小波包分析提取振动信号中的特征频率，算法优化非常好，几乎没有循环。( Time series data analysis Mellin transform tool, Wavelet packet analysis to extract vibration signal characteristic frequency, Algorithm optimization is very good, almost no circulation.)

2016-09-14 14:12:04下载

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ukf-matlab
说明：测试ukf（卡尔曼滤波器）的matlab源代码，避免ekf的截断误差，使线性化的结果更加准确。(Test ukf (Kalman filter) of the matlab source code, to avoid ekf the truncation error, so that the result of more accurate linearization.)

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积分：1
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这是一本matlab工程数学用书可以帮助大家用matlab解决数学问题()

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sound-README
THIS FILE HAVE SOME SPECAILA READ FILE FROM MATLAB VIDEOS

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FaceVerification
In this letter, a local sparse representation is proposed for face components to describe the local structure and character-istics of the face image for face verification. Wefirst learn a dictio-nary from collected local patchesof face images. Then, a novel local descriptor is presented by using sparse coefficients obtained by the learned dictionary and local face patches from face components to represent the entire human face

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optical_tools_matlab1
matlab中的光学工具，实现光学仿真实例源代码(matlab optical tool)

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FDTD 二维

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