DBN

Forecast financial data

河北工业大学的计算机组成小题的题库 绝对的题库 怎么来的就不说了 总之一句话 绝对的题库 而且题的总量不多(Hebei University of the theme of the computer in small absolute Exam exam how come not say a word question bank and question the absolute amount of not more than)

对于一幅输入图像，将产生一幅输出图像，输出图像的每个像素点的灰度值由输入像素点决定，将感兴趣特征的对比度扩展使之占据可显示灰度级的更大部分。使一输入图像转换为在每一灰度级上都有相同的像素点数，均衡化会减少灰度级数。大多数自然图像由于其灰度值分布集中在较窄的范围之内，引起图像细节不够清楚。采用直方图修正后可使图像的灰度间距拉大或使灰度均匀分布，从而增大了反差，使图像细节清楚，达到增强的目的。(For an input image, will produce an output image, the output image gray value of each pixel from the input pixel decided to expand interest in the contrast of features to make it account for more gray levels can be displayed most. Make an input image is converted to grayscale in each pixel have the same points, equalization will reduce the gray series. Most natural images because of their gray value distribution concentrated in a narrow range, causing the image detail is not clear enough. Make the image histogram revised by the gray space widening or so gray uniform distribution, thereby increasing the contrast between the image details clear objective to achieve enhanced.)

模拟信号的调制代码，自己编写的，适合初学者学习(Analog signal modulation code, I have written, suitable for beginners to learn)

包括了高教出版社出版的数学建模教材里部分习题的答案(including the Higher Education Publishing House of mathematical modeling teaching materials part of the answer Exercises)

数据标准化处理函数，输入待处理矩阵，参数dim默认或取1，对列进行标准化处理，dim取2对行处理(Standardized data processing functions, input matrix to be processed, the default parameters, or to take a dim, standardization of columns, dim to take two pairs of line processing)

小波变换已应用到工程的各个方面，但一般只是应用MATLAB的小波工具包来编程，有时需要自己编程实现，故这里给出了DB4小波变换的C实现(Wavelet transform has been applied to all aspects of the project, but generally only apply MATLAB wavelet toolkit for programming, sometimes need their own programming, so here is a DB4 wavelet transform C implementation)

利用matlab演奏的生日快乐歌，别有一番风味，不妨一听(Using matlab played Happy Birthday, do not have a flavor, might one)

说明：  拟牛顿优化算法，用于无约束问题，matlab软件编程(Quasi-Newton optimization algorithm, used for unconstrained problems, MATLAB software programming)

plugging a dc motor using simulink file