tree_network1

关于FFT的MATLAB代码，可以很直观的验证并得到FFT序列(The MATLAB code on the FFT, it is intuitive and FFT test sequence)

转载得有关利用遗传算法优化bp神经网络得源程序中得有关初始化函数编写(reproduced in the use of genetic algorithm optimization bp neural network in the source in the preparation of the initialization function)

主成分分析的基本原理 主成分分析的计算步骤 主成分分析方法应用实例 (Application examples of principal component analysis principal component analysis, principal component analysis of the basic principles of computational steps)

matlab中最大似然估计的程序说明，里面包含程序，拷到matlab中可直接使用(matlab maximum likelihood estimation program description, which contains the program, copying matlab can be used directly in)

calipso一级数据产品总衰减后续散射剖面图(Total attenuation follow-up scattering profile of primary data products)

说明：  3GPP SCM信道模型，根据TS25.996编写(3GPP SCM channel model)

1. BASK、BPSK、QPSK、MSK调制与解调的代码； 2. 信号波形与功率谱密度函数的绘制； 3. 信道信噪比与输出误码率关系曲线的绘制。

seperating object ,and it charecter

语谱图反映了语音信号的动态频谱特性，在语音分析中具有重要的实用价值，被称为可视语音。“yuputu”是用matlab完成语谱图的程序(Spectrogram reflects the dynamic spectrum characteristics of speech signals. It has important practical value in speech analysis and is called visual speech. "Yuputu" is a program to complete the spectrogram with MATLAB.)

说明：  离散信号时域分析的MATLAB实现 熟悉MATLAB编程方法、常用语句和可视化绘图技术(Time domain analysis of discrete signals MATLAB implementation familiar with MATLAB programming, common expressions and visual graphics)