Description: 摘 要:基于材料的各向同性理论,根据应力—应变增量关系,建立了一个混凝土的三维本构关系模型。采用
了目前较为成熟的Ottosen的破坏准则,利用了Sargin的单轴应力—应变关系,并在三维增量非线性关系中引入等
效单轴切线模量。所用的模型中的参数是根据前人的经验和实验来取定的。通过对混凝土的各向受拉、受压和拉
压结合的分析表明,所建立的模型较为简单、实用。-Abstract : Based on the theory of isotropic material, according to the stress-strain increment, the establishment of a concrete three-dimensional constitutive models. Using a more mature now Ottosen damage criteria Sargin use of the uniaxial stress-strain relationship, and three-dimensional non-linear relationship incremental introduction of the equivalent uniaxial tangent modulus. By using the model is based on the parameters of the literature and experimental experience to the admission. Right through to the concrete in tension, compression and tensile combining the analysis shows that the model is simple and practical. Platform: |
Size: 27842 |
Author:duckey |
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Description: PCA---主成分分析 LDA---线性区别分析此类实现结合两者的有缺点实现图像模式识别,其中需要有矩阵类-PCA principal component analysis --- --- LDA linear discriminant analysis combining the two to achieve such a flawed it Image is pattern recognition, which requires matrices Platform: |
Size: 3385 |
Author:李辙 |
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Description: Boosting is a meta-learning approach that aims at combining an ensemble of weak classifiers to form a strong classifier. Adaptive Boosting (Adaboost) implements this idea as a greedy search for a linear combination of classifiers by overweighting the examples that are misclassified by each classifier. icsiboost implements Adaboost over stumps (one-level decision trees) on discrete and continuous attributes (words and real values). See http://en.wikipedia.org/wiki/AdaBoost and the papers by Y. Freund and R. Schapire for more details [1]. This approach is one of most efficient and simple to combine continuous and nominal values. Our implementation is aimed at allowing training from millions of examples by hundreds of features in a reasonable time/memory.
Platform: |
Size: 116681 |
Author:njustyw |
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Description: 摘 要:基于材料的各向同性理论,根据应力—应变增量关系,建立了一个混凝土的三维本构关系模型。采用
了目前较为成熟的Ottosen的破坏准则,利用了Sargin的单轴应力—应变关系,并在三维增量非线性关系中引入等
效单轴切线模量。所用的模型中的参数是根据前人的经验和实验来取定的。通过对混凝土的各向受拉、受压和拉
压结合的分析表明,所建立的模型较为简单、实用。-Abstract : Based on the theory of isotropic material, according to the stress-strain increment, the establishment of a concrete three-dimensional constitutive models. Using a more mature now Ottosen damage criteria Sargin use of the uniaxial stress-strain relationship, and three-dimensional non-linear relationship incremental introduction of the equivalent uniaxial tangent modulus. By using the model is based on the parameters of the literature and experimental experience to the admission. Right through to the concrete in tension, compression and tensile combining the analysis shows that the model is simple and practical. Platform: |
Size: 27648 |
Author:duckey |
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Description: PCA---主成分分析 LDA---线性区别分析此类实现结合两者的有缺点实现图像模式识别,其中需要有矩阵类-PCA principal component analysis------ LDA linear discriminant analysis combining the two to achieve such a flawed it Image is pattern recognition, which requires matrices Platform: |
Size: 3072 |
Author:李辙 |
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Description: Boosting is a meta-learning approach that aims at combining an ensemble of weak classifiers to form a strong classifier. Adaptive Boosting (Adaboost) implements this idea as a greedy search for a linear combination of classifiers by overweighting the examples that are misclassified by each classifier. icsiboost implements Adaboost over stumps (one-level decision trees) on discrete and continuous attributes (words and real values). See http://en.wikipedia.org/wiki/AdaBoost and the papers by Y. Freund and R. Schapire for more details [1]. This approach is one of most efficient and simple to combine continuous and nominal values. Our implementation is aimed at allowing training from millions of examples by hundreds of features in a reasonable time/memory.
Platform: |
Size: 116736 |
Author:njustyw |
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Description: 作者采用具有高度非线性识别能力的人工神经网络与遗传算法相结合的方法，探讨了建立智能预报模型的基本方法，进一步对如何提高预报精度的问题进行了研究，并结合黄河洪水预报实例检验了神经网络模型的可行性。-The author used to identify the capacity of highly non-linear artificial neural network combining with genetic algorithm approach to explore the establishment of intelligent prediction model of the basic ways to further improve the forecast accuracy of how the issues of research and examples of combination of the Yellow River flood forecasting tests the feasibility of neural network model. Platform: |
Size: 101376 |
Author:Eason.Yuan |
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Description: This thesis presents simulation data on array operation in wideband communication systems.
It is shown that array structures with closer inter-element spacing outperform structures with
much larger inter-element spacing. It is also shown that circular structures outperform linear
structures. This performance di erence between the classi cations of arrays is due largely
to the circular array s ability to handle high levels of interference. Even though a diversity
combining scheme (MRC) was used in the simulator, the arrays provided interference rejection
capabilities due to the closely spaced antenna elements. Platform: |
Size: 465920 |
Author:mansoor |
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Description: 介绍混沌通信同步问题，基于LORENZ MODEL-Abstract—In order to realize chaotic synchronization with less
time and better capability, a method which combining linear
feedback control and response system is studied in this paper
based on Lorenz chaotic model . First of all, chaotic
synchronization is realized by a driver-response model. Next,
on the basis of this model, a method of linear feedback control
is proposed to reduce the synchronization time. And then, the
range of control parameters is given to achieve the Lorenz
chaotic system synchronization, and furthermore, based on
theoretic analysis, simulation results had shown its capability is
satisfying and will have a perfect application prospect when
applied in the fields of chaotic communication due to its perfect
performance, and finally one of its application of this model is
given. Platform: |
Size: 462848 |
Author:吴华明 |
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Description: 介绍了三点垂直线阵被动定位的原理. 结合矢量水听器测得的方位角和高低角及到达
阵元间的时延差, 建立了三维坐标下的状态方程和观测方程.运用扩展卡尔曼滤波算法, 研究了该系统的目标运动分析问题. 通过蒙特卡洛模拟仿真试验, 结果表明上述方法具有较高的定位性能,有较强的使用价值.
-Introduced three vertical linear array passive location principle of vector hydrophone. Combining the measured azimuth angle and pitch angle and arrival time delay difference between array elements, establish the three-dimensional coordinates of the state equation and observation equation. Using the extended Calman filter algorithm, on the target motion analysis by Monte Carlo simulation. Test, results show that the method has high positioning performance, has the strong use value. Platform: |
Size: 240640 |
Author:于文娟 |
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Description: 一种中值滤波与小波消噪相结合的滤波程序 中值滤波用于滤除信号的强脉噪声分量 小波消噪平滑线性叠加在中值系列中的平稳随机噪声-A median filtering and wavelet denoising of combining matlab program. The filtering process median filter used to filter out the strong pulse signal noise component.Wavelet denoising smooth linear superposition of series of value in stationary random noise.
Platform: |
Size: 1024 |
Author: |
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Description: 介绍一种高速高精度的开方算法它适用于最一般开方运算形式汉, 算法将数据映射
至（0,1000）区间, 进而将该区间进行非均匀分段, 并用查表与线性插值相结合的方法, 既实现了高速、高精度开方运算, 又使数据表格占用较少的存贮单元这种算法还很容易推广应用于其他幂函数计算-Introduced a high-speed high-precision square root algorithm, it applies to the Han Dynasty, the most general form of root operation, the algorithm maps data
To (0,1000) interval, and thus the range of non-uniform segmentation, and look-up table with linear interpolation method of combining both high-speed, high-precision root operation, and data tables take up less deposit storage unit of this algorithm is very easily applied to other power function calculation Platform: |
Size: 2412544 |
Author:sunshine |
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Description:
《数字图像处理(MATLAB版)》是把图像处理基础理论论述与软件实践方法相结合的一本书，它集成了冈萨雷斯和伍兹所著的《数字图像处理》一书中的重要内容和MathWorks公司的图像处理工具箱。本书的特色在于它重点强调了怎样通过开发新代码来增强这些软件工具。本书在介绍MATLAB编程基础知识之后，讲述了图像处理的主要内容，具体包括亮度变换、线性和非线性空间滤波、频率域滤波、图像复原与配准、彩色图像处理、小波、图像数据压缩、形态学图像处理、图像分割、区域和边界表示与描述以及对象识别等。
-" Digital image processing ( MATLAB version) " is the basis of image processing theory and practice method of combining a book, it is the integration of Gonzales and Woods s " digital image processing " a Book of important content and MathWorks image processing tool box. A unique feature of this book is its emphasis on how to through the development of new code to enhance these software tools. This book introduces the MATLAB programming basic knowledge, tells the story of the main elements of image processing, including brightness transform, linear and nonlinear spatial filtering, frequency domain filtering, image restoration and image registration, image processing, wavelet, image data compression, morphological image processing, image segmentation, region and boundary representation and description and object recognition and so on. Platform: |
Size: 20538368 |
Author:liulou |
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Description: Useful tool for rendering and outputting information rich images-This function can be used in place of IMAGE, IMAGESC and IMSHOW, but does so much more. It is fast and displays images as they should be- correct aspect ratio, integer magnification, no axes. In addition, it can return the image as an output variable- useful for saving to disk, texture mapping surfaces, and post-rendering manipulation such as overlaying/combining two or more images.
All the MATLAB built-in colormaps are implemented, but without MATLAB s nasty discretization artifacts. Plus, there are many new colormaps which are helpful for viewing more complex data, such as optic flow, likelihoods over images, difference images, segmentations, stereo image pairs (as anaglyphs) and edge-maps with orientation. It also accepts user defined linear and non-linear colormaps. Platform: |
Size: 41984 |
Author:史明明 |
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Description: 主成分分析与线性结构分析相结合，比较两种方法的优缺点以和怎么运用，以及在纹理识别方面的重要作用！-Principal component analysis and linear structural analysis combining strengths and weaknesses and how to use comparison of the two methods, as well as an important role in terms of texture recognition! Platform: |
Size: 472064 |
Author:zhengluping |
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Description: 关于模糊算法的模拟仿真，将模糊算法跟控制算法相结合可以解决系统中的不线性问题，这是在飞思卡尔比赛中的实践经验。-About fuzzy simulation algorithm, the algorithm with fuzzy control algorithm can solve the system of combining non-linear problem, which is of practical experience in the game of Freescale. Platform: |
Size: 1024 |
Author:柏明明 |
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Description: In this paper, a fast search-free method for direction-of-arrival (DOA) estimation
with coprime arrays was proposed. It is based on the use of methods that operate
on the uniform linear subarrays of the coprime array and that enjoy many
processing advantages. We rst estimate the DOAs for each uniform linear
subarray separately and then combine the estimates the subarrays. For
combining the estimates, we propose a method that projects the estimated
point in the two-dimensional plane onto one-dimensional line segments that
correspond to the entire angular domain. By doing so, we avoid the search
step and consequently, we greatly reduce the computational complexity of
the method. We demonstrate the performance of the method with computer
simulations and compare it with that of the FD-root MUSIC method.- In this paper, a fast search-free method for direction-of-arrival (DOA) estimation
with coprime arrays was proposed. It is based on the use of methods that operate
on the uniform linear subarrays of the coprime array and that enjoy many
processing advantages. We rst estimate the DOAs for each uniform linear
subarray separately and then combine the estimates the subarrays. For
combining the estimates, we propose a method that projects the estimated
point in the two-dimensional plane onto one-dimensional line segments that
correspond to the entire angular domain. By doing so, we avoid the search
step and consequently, we greatly reduce the computational complexity of
the method. We demonstrate the performance of the method with computer
simulations and compare it with that of the FD-root MUSIC method. Platform: |
Size: 361472 |
Author:rouakgb241 |
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Description: Convolution is a mathematical way of combining two signals to form a third signal. It is the single most important technique in Digital Signal Processing. This code implements the same. Platform: |
Size: 9216 |
Author:Mit Patel |
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Search - Linear combining