Description: Pid自整定程序
输入 num: 控制对象传函分子向量
den 控制对象传函分母向量
time：仿真时间
interval：仿真时间间隔-Self-tuning process Pid input num: control object transfer function elements vector control object den transfer function denominator vector time: Simulation time interval: simulation time interval Platform: |
Size: 5120 |
Author:李天则 |
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Description: 针对三轴稳定卫星的姿态控制系统,在离散事件仿真平台OMNeT ++的
基础上,建立了一个以星敏感器和陀螺为敏感器,反作用飞轮为执行机构的闭环
控制仿真系统。采用双矢量定姿算法和P ID控制算法,对该卫星在对地定向模
式下的控制精度进行了仿真。仿真结果清晰地反映了星敏感器和反作用飞轮输
出延时对控制精度的影响。整个仿真系统符合面向对象和模块化的程序设计理
念,并实现了仿真程序的重用。-For the three-axis stabilized satellite attitude control system, discrete event simulation platform for OMNeT++ based on the establishment of a star tracker and gyro for the sensor, Reaction Wheel for the implementation of closed-loop control simulation system bodies. Dual-vector attitude determination algorithm and P ID control algorithm, the satellite-to-ground directional mode, the control precision of the simulation. The simulation results clearly reflect the star tracker and reaction flywheel output delay on the control precision effects. Consistent with the simulation system and modular object-oriented programming concepts, and realize the reuse of the simulation program. Platform: |
Size: 460800 |
Author:little |
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Description: The code below creates a frequency-flat Rayleigh fading channel object and uses it to process a DBPSK signal consisting of a single vector. Notice that the example uses filter before awgn this is the recommended sequence to use when you combine fading with AWGN -The code below creates a frequency-flat Rayleigh fading channel object and uses it to process a DBPSK signal consisting of a single vector. Notice that the example uses filter before awgn this is the recommended sequence to use when you combine fading with AWGN Platform: |
Size: 1024 |
Author:Ahsan Ali |
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Description: ：为了提高最小二乘支持向量回归机的性能，将Morlet小波核函数引入其中，形成了最小二乘小波支
持向量回归机模型。利用待优化的参数重构模型的目标函数和约束条件，并在此基础上通过遗传算法进行参数
选择，从而提高了该模型的泛化能力。将最小二乘小波支持向量回归机应用于导弹陀螺仪的漂移趋势预测，仿真
实验结果表明了该方法的有效性和可行性，因此可以为陀螺仪的故障预报、可靠性辅助决策提供依据。-To improve the ability of least square support vector regression algorithm，a least square wavelet
support vector regression model by introducing the Morlet wavelet kernel is presented．The object function and
constraint condition are reconstructed by the parameters to be optimized．On the base of it，the model parame—
ters are optimized through genetic algorithm．As a result，the model attains the better generalization ability．
The least square wavelet support vector regression model is used tO forecast the missile gyroscope’S drift tend—
ency．The simulation experiment results indicate the feasibility and validation of the algorithm．So it can provide
basis for the gyroscope’S fault prediction and reliability aid decision． Platform: |
Size: 285696 |
Author:11 |
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Description: 基于PCNN的特征提取,PCNN用于特征提取时，具体平移、旋转、尺度、扭曲等不变性，这正是许多年来基于内容的图像检索系统追求的目标，同时PCNN用于特征提取时，有很好的抗噪性。而且PCNN直接来自于哺乳动物视觉皮层神经的研究，具有提取图像形状，纹理，边缘的属性。用PCNN能很好地对图像进行签名，将二维的图像的特征提取成一维矢量签名。-Feature extraction of specified object is an
important preprocessing stage in machine vision
systems. In this paper, we present a novel hybrid
feature extraction method using PCNN (Pulse Coupled
Neural Network) and shape information. First, we use
PCNN firing map train to formulate object’s time
signature, then we use roundness of each firing map to
formulate object’s shape information vector, the final
feature matrix we got is combined time signature and
roundness. We take correlations as our judge criteria
in our experiments. It has been proved that the
algorithm is not sensitivity with the rotation, scaling
and translation of the object and is a useful method for
target recognition applications. Platform: |
Size: 1024 |
Author:wangxiaofei |
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Description: A tool for OOP overloading of the size() method, imitating I/O conventions of MATLAB s native SIZE.-This function is an OOP aid for overloading the size() method in user-defined classes. If the user provides the vector of dimensions of a hypothetical array object, parseSize will take care of the main input/output argument processing in a way that imitates the conventions of MATLAB s usual SIZE function.
Platform: |
Size: 2048 |
Author:雪狼 |
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Description: MATLAB函数参考手册，查看matlab函数作用以及功能。- SVMLSPex02.m
Two Dimension SVM Problem, Two Class and Separable Situation
Difference with SVMLSPex01.m:
Take the Largrange Function (16)as object function insteads ||W||,
so it need more time than SVMLSex01.m
Method from Christopher J. C. Burges:
"A Tutorial on Support Vector Machines for Pattern Recognition", page 9
Objective: min "f(A)=-sum(ai)+sum[sum(ai*yi*xi*aj*yj*xj)]/2" ,function (16)
Subject to: sum{ai*yi}=0 ,function (15)
and ai>=0 for any i, the particular set of constraints C2 (page 9, line14).
The optimizing variables is "Lagrange Multipliers": A=[a1,a2,...,am],m is the number of total samples. Platform: |
Size: 561152 |
Author:王东东 |
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Description: 以Matlab软件为平台,研究基于模型的嵌入式系统的开发方法。以转差率控制异步电动机矢量控制系统为开发对象,重点研究了基于模型设计的关键技术,通过实验对这些技术进行了验证。将设计成果应用在异步电动机的控制当中,并取得与研究模型一致的控制效果,证明了基于模型的嵌入式系统设计的优越性。-Matlab software as a platform to study the model-based embedded systems development methodology. To slip controlled induction motor vector control system for the development of the object, focusing on the key technology of model-based design through experimental validation of these technologies. The design results with asynchronous motor control them, and made consistent with the control effect of the model, that model-based embedded system design advantages. Platform: |
Size: 206848 |
Author:fenghaixiang |
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Description: 在P4P问题中,当空间4个点共面时,不仅摄像机坐标系与物体坐标系之间 的旋转矩阵R和平移向量t可以线性求解,而且可以同时确定摄像机的有效焦距f和像素比例，该程序设计模拟已知相机矩阵M情况下由已知三维空间点和图像坐标情况求解相机外参数矩阵-When space four points coplanar P4P problem, not only between the camera coordinate system and the object coordinate system rotation matrix R and translation vector t
Can be solved linearly, and can determine the camera s effective focal length f and pixel ratio, the program is designed to simulate a known camera matrix M
Camera outside the parameters matrix case solved by the known three-dimensional space points and image coordinates Platform: |
Size: 14336 |
Author:乔中强 |
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Description: circularBuffer class converts regular MATLAB vector/matrix into circular vector/matrix. User specified index will be wrapped into valid index while accessing/mutating elements in circularBuffer object. All MATLAB - circularBuffer class converts regular MATLAB vector/matrix into circular vector/matrix. User specified index will be wrapped into valid index while accessing/mutating elements in circularBuffer object. All MATLAB Platform: |
Size: 2048 |
Author:md adil |
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Description: 随着科学技术的飞速发展，机器学习与人工智能技术的不断创新，人们对特定信息检索的需求逐渐增加，使得如何对资源进行合理有效的分类成为一个关键问题。近几年来，基于内容的图像分类的研究焦点主要集中在自然图像的场景分类和物体分类两个方面，大多采用有监督学习方法，通过对底层特征建模和中间语义分析来实现分类。
本文基于Libsvm的图像分类研究及实现，主要针对的是物体分类这一方面，选用了五类水果作为分类研究的对象。对图像进行分类的大体步骤主要包括采集图像样本（主要从Web上获取）、图像预处理（如截成大小一致的图片）、特征向量提取、结合Libsvm进行模型训练、对测试图片进行分类测试。(With the rapid development of science and technology, the continuous innovation of machine learning and artificial intelligence technology, the demand of people for specific information retrieval increases gradually, and how to classify resources reasonably and efficiently becomes a key issue.
This article based on Libsvm image classification research and implementation, mainly for the object classification on the one hand, the selection of five types of fruit as the classification of the object of study. The general steps of image classification include collecting image samples (mainly obtained from the Web), image preprocessing (such as cutting the same size of the image), feature vector extraction, combined with Libsvm model training, the test images were classified test.) Platform: |
Size: 1024 |
Author:安安*
|
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Search - object vector matlab