K-means

delta modulation tecniques in matlab

用matlab仿真轴承故障信号构造轴承故障的仿真信号，其中轴承的固有频率fn=3000Hz , 位移常数y0=5, 阻尼系数ξ＝0.1, 冲击故障发生的周期为0.01s，采样频率fs=20KHz, 采样点数N=4096。要求：根据上述条件构造轴承故障的仿真信号，画出其时域波形及频谱图。(Matlab simulation bearing fault signal)

谱减法是利用噪声的统计平稳性以及加性噪声与语音不相关的特点而提出来的。即让有语音期间噪声幅度谱的期望值与无语音间隙噪声的幅度谱的期望值相等。(Spectral subtraction method is the use of stationary noise statistics and the additive noise and speech characteristics not related to the initiative. During that speech so that the expected value of noise amplitude spectrum and noise-free audio gap equal to the expected amplitude spectrum.)

说明：  这是基于周期图改进的welch的功率谱估计，这种方法是在经典周期图的基础上改进而来的，效果很不错(This is based on the improved welch periodogram power spectral estimation, this method is based on the classical periodogram improvement came, the effect is very good)

drtoolbox降维工具箱程序包以及使用的范例 LLE，LTSA，ISOMAP，等( examples of drtoolbox use)

可变模糊迭代聚类模型程序，能够应用于多种指标综合评价和聚类问题。(Variable fuzzy clustering iterative model program that can be applied to a variety of indicators and evaluation clustering problem.)

本程序是混沌现象测试的源代码,揭示了混沌系统的特性(This procedure is the chaos phenomenon test source code.Characteristics of chaotic system are disclosed )

一些基本的小波变换程序，拿来与大家共享，可能对初学者有些帮助(Wavelet transform some of the basic procedures used with the U.S. share may be helpful for beginners)

通信仿真中非常重要的一个程序，实现ofdm抑制papr算法(Communication simulation program is very important to realize ofdm algorithm inhibition papr)

采用CA-CFAR的方法，对weibull杂波下的目标进行检测，包含杂波产生程序(CA-CFAR, weibull clutter, target detection, including noise generation process)