BP_yasuo

this is some codes in systems

Fast algorithm for computing the response of a discrete Volterra model given a input sequence.

这回garch模型在matlab中的代码(This time garch model in matlab code)

采用GA对神经网络的权值与阀值进行优化，得到效果更好的网络(GA uses neural networks for weights and thresholds are optimized to get better network)

Matlab工具包补充算发，包括各种噪声代码及滤波倒向Smoother代码等(Matlab toolkit added fat count, including all kinds of noise code and filter code, such as backward Smoother)

可对地震波进行积分和基调运算，适合研究生做课题研究。(For get the real displacement ,we can get it by two times integral. But we need to do baseline adjustment.)

五种常用的粒子滤波算法，里面有ekf算法的比较 欢迎大家下载学习，含注释(five kinds of pf filter. it will help you to study pf filter.)

谱估计一直以来被信号处理领域的工作者所关注，该程序总结了几个谱估计算法，供大家参考学习！(Spectrum Signal Processing has been of concern to workers in the field, the program summarizes the number of spectral estimation algorithm, for your reference to learn!)

利用Matlab软件工具，对简单的植被形态进行模拟，模拟结果生动逼真。首先，迭代产生一系列字符串；其次，根据将L系统与图形联系起来，采用龟形的概念赋予每个字符特定的图形含义；最后，读取字符并画图，根据读取到的字符通过Matlab实现相应的操作。(According to L system and iterated algorithm, shape of trees were simulated with matlab functions and programs and the fractal trees’ configurations were natural and living. First, we use iteration to produce a series of string. Then, connecting the L system with graphs, we use the theory of turtles to give each character a specific meaning. Finally, read the string and draw pictures with the matlab. )

Matlab程序设计的源代码，适合初学者使用。(Matlab programming source code, suitable for beginners.)