CHAPTER4

说明：  These exercises and projects were originally the even-numbered exercises in the first edition. (The first edition did not distinguish between exercises and programming projects.) For the benefit of readers who have the first edition, the original exercise number is given in square brackets. For example, the notation [was #4] indicates that the number of the exercise (or programming project) was 4 in the first edition. If an answer is different because of second-edition changes, the word "modified" will appear inside the brackets: [was #4; modified].These exercises and projects were originally the even-numbered exercises in the first edition. (The first edition did not distinguish between exercises and programming projects.) For the benefit of readers(These exercises and projects were originally the even-numbered exercises in the first edition. (The first edition did not distinguish between exercises and programming projects.) For the benefit of readers who have the first edition, the original exercise number is given in square brackets. For example, the notation [was #4] indicates that the number of the exercise (or programming project) was 4 in the first edition. If an answer is different because of second-edition changes, the word "modified" will appear inside the brackets: [was #4; modified].)

这是一个基于MATLAB的通信系统的设计，里面是幅度调制与解调的代码，还有基于simulink的仿真，是本科毕设的东西，希望对大家有用。(This is a MATLAB-based communication system design, which is amplitude modulation and demodulation of the code, as well as simulation simulink-based undergraduate complete set of things, want to be useful.)

说明：  用ABAQUS扩展有限元方法模拟水里压裂的例子。(The program developed in Python language is mainly used to simulate the hydraulic fracture on ABAQUS platform. Plastic damage model is adopted for cement sheath.)

Eric Matthes 编著的Python编程从入门到实践配套源码。(Eric Matthes compiled Python programming from entry to practice supporting source code.)

c#入门经典（第七版） 清华大学出版社 Benjamin Perkins Jacob Vibe Hammer Jon D.Reid(Beginning c#6 programming & Visual Studio 2015)

摘要: 现有的聚类算法比如 CluStream 是基于 k-means 算法的。这些算法不能够发现任 意形状的簇以及不能处理离群点。 解决上述问题,本文提出了 而且, 它需要预先知道 k 值和用户指定的时间窗口。 为了 分将数据映射到一个网格, D-Stream 算法,它是基于密度的算法。这个算法用一个在线部 在离线部分计算网格的密度然后基于密度形成簇。 度衰减技术来捕获数据流的动态变化。 为了探索衰减因子、 数据密度以及簇结构之间的关系, 我们的算法能够有效的并且有效率地实时调整簇。 群点的稀疏网格是合理的, 算法采用了密 而且, 我们用理论证明了移除那些属于离 从而提高了系统的时间和空间效率。 该技术能聚类高速的数据流 而不损失聚类质量。 实验结果表明我们的算法在聚类质量和效率是有独特的优势, 并且能够 发现任意形状的簇,以及能准确地识别实时数据流的演化行为(Abstract: Existing clustering algorithms such as CluStream are based on the k-means algorithm. These algorithms can not be found Meaningful clusters and can not handle outliers. To solve the above problems, this paper presents)

智能车辆基于斯坦福大学Stanley智能车模型建立的横向控制策略，MATLAB(Stanley lateral control strategy Intelligent Vehicle Intelligent Vehicle Model Based on Stanford University established, MATLAB)

刘金坤老师的滑模控制程序，可以实现对非线性，系统参数部分未知的系统控制。有一定的抗干扰能力(Liujinkun teachers sliding mode control procedures can be achieved right nonlinear system parameters part of the unknown system. A certain degree of anti-jamming capability)

有了合适的处理对象，剩下的就是技术问题了。在数字运动检测中运用的关键技术有图像数据读取、图像的中值滤波、图像灰度化、图像梯度的获取、图像特征区域的确定、两幅图像的匹配、图像二值化、图像细化、图像去离散点的操作、物体的区域定位、物体中心点的取得，最后再从图片中得到物体运动轨迹。本运动检测系统是为了实现对一系列图片中运动物体的跟踪而设计的，它通过对一系列图片的处理，提取出图片背景，识别出运动物体，进而对运动物体进行跟踪，得到物体运动的轨迹。本文主要阐述了什么是数字图像处理、数字图像处理的基本要求、数字图像处理的实践及开发工具的特点、功能、()

这是小波包的关于matlab的源码，提供给需要用到小波包变换的处理的同学(This is the source code of the wavelet packet about matlab)