c6exsf1

Software-defined radios (SDRs) have been around for more than a decade. The first complete Global Positioning System (GPS) implementation was described by Dennis Akos in 1997. Since then several research groups have presented their contributions.We therefore find it timely to publish an up-to-date text on the subject and at the same time include Galileo, the forthcoming European satellitebased navigation system. Both GPS and Galileo belong to the category of Global Navigation Satellite Systems (GNSS).

熟悉非高斯色噪声的产生过程，并对其进行参数估计。 产生一高斯噪声，让其通过一线性系统，再得到符合需要的对数正态分布。 (Familiar with the process of non-Gaussian colored noise generated, and estimated its parameters. Generate a Gaussian noise, so that the linear system to meet the needs of the lognormal distribution.)

说明：  信号卷积的matlab实现，比较简单的程序，解释清楚易懂，对信号分析的同学会有些帮助(Convolution by matlab)

包括风轮机，发电机，双PWM变流器，控制系统等完整的并网永磁直驱风电系统模型，(a complete grid-connected direct-drive wind power system model,including wind turbine, generator, dual PWM converter, control system, )

说明：  用函数qtdecomp对图像进行四叉树分解，可以检测图像的边界(Use function to check the object boundaries ,it is a new method to trace boundaries.)

可读取采集卡上WMD格式数据文件，分析行波故障信号的故障点及波头位置。(Can read acquisition card format data files on WMD, analyzes the traveling wave fault signal fault point and wave head position. )

一种基于多文档得图像合并技术，关于小波的matlab复合分析，语音信号的采集与处理，数字信号处理课设。( Based on multi-document image obtained combining technique, Matlab wavelet analysis on complex, Acquisition and Processing of the speech signal, digital signal processing class-based.)

It is used for understanding the phenomenon of pendulum and chaos. It s good for beginners.

SIR（Susceptibles，Infectives，Recovered）模型来研究如天花，流感，肝炎，麻疹等治愈后均有很强的免疫力的传染病(SIR (Susceptibles, Infectives, Recovered) model to study such as smallpox, influenza, hepatitis, measles, etc. have a strong immunity after cure of infectious diseases)

说明：  PSCAD仿真模型，可以用来研究SSO问题。(The PSCAD simulation model can be used to study SSO problems.)