longgekuta

说明：  加性高斯白噪声下，FQPSK调制的常规OQPSK检测(awgn channel, convention OQPSK demodulationfor FQPSK modulationfor)

电力变压器差动保护电力变压器差动保护电力变压器差动保护电力变压器差动保护电力变压器差动保护电力变压器差动保护(transformer differential protection)

An effective implicit time integration scheme was proposed for the fi nite element solution of nonlinear problems in structural dynamics. Various important attributes were demonstrated. In particular, it was shown that the scheme remains stable, without the use of adjustable parameters, when the commonly used trapezoidal rule results in unstable solutions. In this paper we focus on additional important attributes of the scheme, and specifi cally on showing that the procedure can also be effective in linear analyses. We give, in comparison to other methods, the spectral radius, period elongation, and amplitude decay of the scheme and study the solution of a simple ‘model problem’ with a very fl exible and stiff response.

Matlab编程基础及应用，是学习matlab的好材料(Matlab programming basic and applied, is a good material to learn matlab)

Toolbox to read netcdf files on Matlab Install: javaaddpath([pwd /netcdfAll-4.2.jar ]) unzip( mexcdf.r4000.zip ) addpath ([pwd /mexcdf/mexnc ]) addpath ([pwd /mexcdf/snctools ])

matlab 学习技巧，现在把我用的，也就是对我帮助很大的留个文件传上去，希望对大家有用，第五高级编程应用(matlab learning skills, and now I use, which is a great help to me to leave a document passed up, we want to be useful, the fifth high-level application programming)

利用matlab画五彩K线图，可以定义上涨和下跌K线的颜色(Using matlab draw multicolored K line graph, you can define up and down K-line color)

intro to matlab.contains basic matlab commands

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.)

Multirate filter design and simulation using MATLAB.