pi4QPSK

回归分析---一种简便的数据分析预测算法，可用于预测模型(Regression analysis--- a simple data analysis prediction algorithm prediction model can be used to)

I am uploading a file of Comparative Analysis of Various Image Enhancement Techniques. Plz accept it. Thanks and Regards, salman

This function takes the n time domain samples (real or complex) and finds the psd by taking (fft/n)^2. The two sided spectrum is produced by shifting the psd The array freq provides the appropriate frequency values for plotting purposes. By taking 10*log10(psd/max(psd)) the psd is normalized values beow 60db are set equal to -60db

简单的最小二乘逼近算法，用于系统辨识，方便修改噪声参数和系统参数，为系统辨识和仿真作业的源代码。(Simple least-squares approximation algorithm for system identification to facilitate the modification of system parameters and noise parameters for the system identification and simulation of the source code of operation.)

this code is a predictio of a impurity wethear

非线性方程组N-L解-数值方法(MATLAB版 第4版).pdf(Nonlinear equations NL- A numerical method (MATLAB version 4). Pdf)

固定范围内采用GPSR路由协议的最佳路径选择matlab程序(Within a fixed range using the best path routing protocol GPSR choice matlab program)

基于MATLAB的几种数字调制仿真，包括2ASK、4ASK，2PSK，4PSK，QAM等调制方式。结合GUI图形表示出来。内含两个文件，一个是digital_modulation.fig图形文件，另一个是digital_modulation.m源码文件。(digital_modulation)

利用matlab的基本方法，求出矩阵的逆，体现matlab的矩阵功能。(Matlab using the basic method to derive the inverse matrix, the matrix reflect the matlab function.)

完整的核主元分析法程序，包含训练识别功能，希望有所帮助。(Complete nuclear principal component analysis procedures, including training in recognition, hope that helps)