simu_system

常用潮流分析，小波分潮分析，常用于大于等于一年的数据组中(Tide gauge data analysis)

一个适合进行在线支持向量机回归辨识的Matlab源程序。(Matlab programs for on-line regression identification using Support Vector Machine)

地球物理勘探中重力资料解释的主要目的是由地表观测值推断地下可能存在的密度分布。众所周知,任何一组重力数据都可能由无数个密度分布所引起。即使假设了重力异常是由具有均匀密度差的单一地质体产生的,也得不出唯一的解。画图(Gravity geophysical exploration data interpretation main purpose is inferred from surface observations may exist underground density distribution. Is known, any set of data may be provided by gravity density caused numerous. Even assuming that the gravity anomaly is determined by having a uniform density difference arising from a single geological body, they have no unique solution. Paint)

基于波形分集的雷达抗距离欺骗干扰方法（二）的仿真，仿真采用了简单的线性调频信号和时域脉压(Radar distance deception jamming resistance method based on waveform diversity (2) simulation, the simulation using the simple linear frequency modulation signal and the time domain pulse pressure)

matlab code for readind accelerogram files,useful for seismologists

金融随机分析第二册－连续时间模型（中文版－Shreve）(Second volume of financial stochastic analysis- continuous time model (Chinese version- Shreve))

用matlab生成无标度网络，并对无标度网络进行分析(Using matlab to generate scale-free networks, and scale-free network analysis)

Implementation of Discrete fourier transform 2D (to images )

OFDM下行的仿真1、产生要传输随机数； 2、进行调制； 3、串并转换； 4、进行IFFT操作（代码中有用到共轭对称向量的IFFT为实数进行简化计算）； 5、增加循环前缀； 6、并串转换； 7、输出前滤波； 8、增加信道噪声（加性高斯白噪声）； 9、接收端串并转换； 10、去除循环前缀； 11、进行FFT变换； 12、信号解调； 13、误比特率计算； (OFDM downlink simulation 1, have to be transmitted random number 2, the modulation 3 series and transforms 4, the IFFT operation (code useful to conjugate symmetric vector of the IFFT of real numbers to simplify calculations) 5, the increase in circulating prefix 6, and string conversion 7, the output before the filter 8, increased channel noise (additive white Gaussian noise) 9, the receiver string and conversion 10, removal of cyclic prefix 11, the FFT transform 12 , the signal demodulation 13, bit error rate )

用matlab仿真GPS卫星，3维动画，非常不错的， 含有GUI功能。(Matlab simulation using GPS satellites, 3D animation, very good, with GUI functionality.)