Differential-equation-code

用于循环前缀ofdm同步，算法很简单，熟悉此算法原理的人更容易看懂。(Cyclic Prefix for OFDM synchronization algorithm is very simple, familiar with the principles of this algorithm easier to understand.)

海伦积分方程求解算法，只是一般的代码，还需要改进的(Helen integral equation solution algorithm, but generally the code, still needs to improve)

matlab反射波正演模拟，学姐编的小程序，欢迎交流(matlab reflected wave forward modeling, sister compiled a small program, please share)

newmarkbeta法的MATLAB程序，可用于时程分析(The MATLAB program of newmarkbeta method can be used for time history analysis.)

说明：  产生高斯白噪声并用不同方法求解其PSD（功率谱密度）(Generating Gaussian white noise and solving its PSD)

用matlab编写的软件，用于人脸检测的一个很好用的软件，可以自己随便找一幅图像进行测试。(Matlab software used to prepare for the face detection software used in a very good, can not find an image for testing.)

在MATLAB环境下实现了CDMA通信系统仿真，程序流程为：随机序列产生--WALSH码扩频--BPSK调制--加入（和不加入）高斯白噪声--BPSK解调--WALSH码解扩，对过程波形进行了存储，对加噪与不加噪情况下的解码结果进行了对比，并绘制出信噪比与误码率关系图。(In the MATLAB environment to achieve a CDMA communication system simulation, the program flow as follows: random sequence generated- WALSH yards Spread Spectrum- BPSK modulation- to join (and not to join) Gaussian white noise- BPSK demodulator- WALSH yards Solution expansion of the process of waveform storage, to add noise and without noise cases, the decoding results were compared, and draw out the signal to noise ratio and bit error rate diagram.)

针对HHT中存在的边界效应，提出了镜像拖延发改进EMD的分解过程。并提供了英文原版文献便于理解。适用于HHT研究的提高研究学习(improved HHT base on masking technology. in order to reduce the end effect in hilbert huang transform)

一个很实用的有关于高阶谱的matlab的源程序，下载可直接使用(A very practical about theHigher-Order Spectral Analysis matlab source code, downloads can be used directly)

说明：  a基于simulink仿真系统的ask模型(a simulation system based on simulink model ask)