72272

s function of 7 dof manipulator

纯弯构件受力分析，曲率-弯矩关系，荷载-挠度关系。(Pure bending component stress analysis, curvature- the moment the relationship between the load- deflection relationship.)

说明：  一篇关于SIMULINK实时设计的文章，很不错的资料，互相学习一下吧。(SIMULINK real-time design of an article on the article, very good information, learn from each other about it.)

说明：  任务 1 编写以两幅灰度图像为输入的 MATLAB 函数，计算下列图像差值度量：均方误 差（MSE）信噪比（SNR）峰值信噪比（PSNR）均值绝对误差（MAE）处理给定的测试图像“Lena”及其原始和后添加噪声形式。 任务 2 编写 MATLAB 函数，通过两种不同的方法将一幅灰度图像从原始大小下采样到 给定输出大小：a)直接消除像素，b)在消除像素之前进行初步图像平滑处理。用缩放系数 2:1、4:1、8:1 和 16:1 对给定的测试图像“Living.”进行处理。 任务 3 编写 MATLAB 函数，通过两种不同的方法将灰度图像从原始大小缩放到给定的 输出大小：a)像素重复使用上述方法将任务 2 中处理的图像缩放回原始大小。使用为任务 1 编写的 MATLAB 方法计算原始图像和缩放图像的 MSE 和 PSNR。将 MSE和 PSNR 分别作为大小缩减率的函数。定义对于相同的尺寸缩小比，收缩/缩放方法的组合提供最小 MSE 和最大 PSNR。 任务 5 编写 MATLAB 函数分别对测试图像“Fig0316(1)(top_.)”和“Fig0316(4)(._.)”执行直方图均衡。显示直方图均衡前后直方图的直方图。(task1 task2 task3 task5)

In this paper, we present two novel class-based weighting methods for the Euclidean nearest neighbor algorithm and compare them with global weighting methods considering empirical results on a widely accepted time series classification benchmark dataset. Our methods provide higher accuracy than every global weighting in nearly half of the cases and they have better overall performance. We conclude that class-based weighting has great potential for improving time series classification accuracy and it might be extended to use with other distance functions than the Euclidean distance.

简单的matlab教程，教会初学者matlab的基本应用，初步掌握matlab(Simple matlab tutorial)

执行机构采用飞轮控制的卫星姿态控制系统仿真(attitude control system simulation of wheel controlled satellite )

计算多层膜的反射率，可计算不同的偏振态。各个膜层的厚度和折射率可以自己设置。(multilayer,optical film,reflection)

通过matlab的simulink中的s函数，对卫星的轨道六根数进行控制，实现卫星编队的队形保持。(By the simulink in matlab s function to track the number of six satellites is controlled to achieve the formation holding satellite formation.)

A semi blind technique for estimating the carrier frequency offset in OFDM communication systems is presented in this paper. The fractional and integer frequency offsets are esti-mated by employing a few null subcarriers in the rst OFDM symbol in a frame. While the conventional null subcarrier based methods estimate the offset by a single global search, the proposed method employs a two stage estimator, which greatly minimize the computational complexity.