FastICA

说明：  巴特沃斯滤波的算法，希望对大家有所帮助，自己写的。(Butterworth filter algorithm, we want to help, his writing.)

次算法描写了边缘停止函数的构造，以及如何在计算机上表达此函数，当用于图片时，运行结果是个矩阵。(Time algorithm describes the construction of the edge stopping function, and how to express this function on the computer, when used in the picture, the result is a matrix.)

根据伪随机序列理论，由混合同余法产生均匀分布的随机数，进而根据中心极限定理来产生高斯噪声。 分析所产生的均匀分布和高斯分布随机信号的均值、方差、自相关等数字特征，估计其概率密度函数并进行分析，估计其功率谱密度并进行分析。说明该高斯噪声是否符合白噪声特性。 对该高斯噪声进行FIR低通滤波，估计输出低通型限带白噪声的功率谱、相关时间等，并结合白噪声通过线性系统相关理论来进行分析。 (According to the theory of pseudo-random sequence, a uniformly distributed random numbers by mixed congruential method to generate Gaussian noise, and then according to the central limit theorem. Produce a uniform distribution of the analysis and the mean of the Gaussian distribution random signals, variance, since the digital characteristics of the correlation, the probability density function is estimated and analyzed, it is estimated that its power spectral density, and analyzed. The Gaussian noise is in line with the characteristics of white noise. FIR low pass filter of the Gaussian noise, the estimated output of low-pass type band-limited white noise power spectrum, time, etc., combined with the white noise to be analyzed by linear system theory.)

this file contains psk and qpsk modulation and de modulation part

利用双线性变换法，设计一个0.4dB截止频率为10kHz且在30kHz处有最小阻带衰减为50dB的数字巴特沃兹低通滤波器，其抽样率为100kHz。利用教材（4.35）式求解原型模拟滤波器的阶数，并利用Matlab的M文件buttap设计模拟原型滤波器。用M文件bilinear将模拟滤波器传输函数变换成期望的数字传输函数。请用Matlab画出其增益和相位响应，并给出设计的具体步骤。(fuck!!!)

convolution using over add method

频谱校正程序，matlab的，学完动态信号分析的作业，华南理工大学研究生课程(Spectrum correction procedures, matlab, completion of the job of the dynamic signal analyzer, South China University of Technology postgraduate courses)

人工网络的原理及应用讲义。讲得很详细，包括matlab仿真方法(Principles of artificial network and application notes. Very detailed, including the matlab simulation method)

本程序是作者多年研究算法的经验总结，精心设计，方法经典，非常实用，望多下载(It s a perfect programming)

图切优化算法，通过它可以使得C++程序脱离vc环境在matlab中运行。(Figure cut optimization algorithm, it can makes C++ program from the vc environment in matlab run.)