spPitchTrackCorr

说明：  利用MATLAB编写的直流电动机机械特性测试(MATLAB prepared using DC motor mechanical properties testing)

根据大津法求二值化阈值的MATLAB实现，参考文献：Otsu, A Threshold Selection Method Gray-Level Histogram(MATLAB coding: A Threshold Selection Method Gray-Level Histogram)

基于2对Hilbert移相滤波器的无功功率测量方法(Based on phase 2 on the Hilbert filter method for reactive power measurement)

平坦衰落信道的MATLAB仿真（有多普勒频移） (Flat fading channels MATLAB simulation (with Doppler shift))

自适应滤波器，求解性能误差曲面和等值曲线，最陡下降法和LMS算法的比较，(Adaptive filter, the solution surface and contour error performance curve, the steepest descent method and the LMS algorithm,)

本文利用文献〔1〕、〔2〕、〔3〕中关于指数分布的特征刻划与稳定性定理,得到了均匀分布,瑞利(Rayleigh)分布和威布尔(Weibull)分布的一些特征性质与稳定性结果(In this paper, literature 〔1〕 〔2〕 〔3〕 on Exponential Distribution and characterization and stability theorem, the uniform distribution, Rayleigh (Rayleigh) and Weibull (Weibull) distribution in the nature of some features Stability Results)

经验模式分解程序（简称EMD），在某些情况下比WAVELET TRANSFORM 和STFT分析效果要好，就是计算很费时间！(Empirical Mode Decomposition (EMD), In some cases than WAVELET TRANSFORM STFT analysis and better results. Computing is a great time!)

说明：  直流电机PID调速，simmulink仿真程序。(DC motor speed control, simmulink simulation program.)

说明：  信号二维到达角及计划参数估计估计 矩阵束法(Two-dimensional arrival angles and signal parameter estimation scheme is estimated Matrix Pencil Method)

here is the matlab source code for parallel port communication