pq-fenjie-for-flow

QPSK调制与解调，并有误码率的分析，加了 信道噪声。(QPSK modulation and demodulation, and bit error rate analysis, the addition of channel noise.)

里面有灰色预测模型的matlab程序，只需输入数据即可，调试成功，可运行。(There are gray prediction model matlab program, you can simply enter the data, debugging success, can be run.)

本书为Stephen J.Chapman《MATLAB编程（第二版）》英文影印版的中文译本，这本 书对初学者很好的入门教材。(The book " MATLAB Programming (2nd edition)," the English version of the Chinese translation for photocopying Stephen J.Chapman, this book is a good primer for beginners.)

matlab Simulink 环境下编写的四分之一车模型，利用经典的四分之一车数学模型进行设计(matlab Simulink environment written in a quarter car model, using the classical fourth mathematical model car design)

现代数字信号处理，自适应谱线增强，求解自相关函数，输入输出信号作比较。(Modern digital signal processing, adaptive line enhancement, solving autocorrelation function, input and output signals for comparison.)

this code is to learn about MATLAB

利用matlab 和 差分方法求解非线性方程(Difference Methods Partial Differential Equations)

介绍了其中处理EMD端点效应的方法，还有其中两种改进算法的程序，适合EMD的学者。(Introduces seven kinds of processing methods of endpoint effect the EMD, and one of the two kinds of improved algorithm procedures, suitable for scholars of the EMD.)

说明：  利用matlab画平面坐标轴，可自定义坐标长度和刻度。(Painting using matlab axis plane, can be customized in length and scale coordinates.)

Iteractive Curvature Based Interpolation