Automatic-Image-Segmentation-by-Integrating-Color

Welch功率谱密度是用改进的平均周期图法来求取随机信号的功率谱密度估计值。Welch法采用信号重叠分段、加窗函数和FFT算法等计算一个信号序列的自功率谱估计(PSD如上例中的下半部分的求法)和两个信号序列的互功率谱估计（CSD）。MATLAB信号处理工具箱函数提供了专门的函数PSD和CSD自动实现Welch法估计，而不需要自己编程。(method of power spectral density plot )

this file is modal analysis of discrete dynamic systems in matlab m.file

用于滚动轴承微弱故障信号的诊断的方法：最小熵反卷积程序、自适应消噪法处理轴承信号、美国西储大学轴承数据处理等5个源文件(Fault diagnosis for rolling bearing weak signal approach: minimum entropy deconvolution procedure, adaptive noise cancellation treatment bearing signals, Case Western Reserve University, United States bearing data processing five source files)

双载波的8psk调制，这是8p*2a的调制，所以是2^4进制；一个码元周期有8个载波周期；

matlab学习的很好的资料，上传给大家，供大家使用，是ppt的形式，有类型题(matlab reference)

VNOI code minion.pas nguoi_giao_hang.pas robot_leo_cot.pas Max_square.pas Max_square_rectangular.pá

说明：  carsim与matlab联合仿真，车辆跟踪双移线曲线(Carsim and MATLAB co-simulation, vehicle tracking double lane change curve)

MATLAB程序，做阻尼振动的小球的运动作投影，观察在阻尼振动过程中，小球的振幅衰弱情况(MATLAB program, do the damping vibration movement of the ball for the projector, observe the damping vibration process, the weak amplitude of the ball)

jpeg compresion withquantization matrices

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )