IFFCM

在matlab环境下对grid文件进行可视化修改，方便灵活。(In the matlab environment to visualize modified grid files, convenient and flexible.)

qpsk调制解调 脉冲成型 信道噪声 抽样 检波(qpsk modem pulse shaping)

Kernel principal component analysis (kernel PCA) is an extension of principal component analysis (PCA) using techniques of kernel methods. Using a kernel, the originally linear operations of PCA are done in a reproducing kernel Hilbert space with a non-linear mapping.

利用MATLAB求微分解方程，程序简单实用，可以让大家轻松掌握(Find micro-decomposition equation using MATLAB, the program is simple and practical, so that everyone can easily grasp)

This module will calculate the electrical angle between two different signals (Normally current + Voltage). once the first siganl as a reference signal and once the second signal as a reference signal.

利用MATLAB软件编写的序列二次规划算法程序，包括二次规划子程序的编写，用于求解非线性函数的最小值问题。(Using MATLAB software written in sequential quadratic programming algorithm program, including the preparation of quadratic programming routines for solving nonlinear function of the minimum problem.)

FSK调制解调MATLAB源代码,包含经过信道的实际信号,相干解调后的信号的眼图，非相干解调后的信号的眼图等内容。(FSK modulation and demodulation MATLAB source code, contains the actual signal after channel coherent demodulation signal eye diagram, non-coherent demodulation signal eye diagram.)

SPN的差分密码分析，建议选取的明密文对数量为8000+，太小可能结果有偏差(SPN Differential cryptanalysis, ciphertext clear recommendations for selected number of 8000+, too small deviations may result)

输入UTC时间，计算月球在J2000和WGS84坐标系中的位置和速度(Input：UTCtime Output：Position and velocity of moon in J2000 and WGS84)

绘制地震图形matlab软件包,可采用不同方式进行剖面成图实现(Seismic mapping matlab graphics package, to be used in different ways to realize profile mapping)