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本文讲述锁相环的工作原理，锁相环路实际上是一个相差自动调节系统。(This article describes the working principle of PLL, PLL is actually a difference between the automatic adjustment system.)

说明：  《MATLAB工程数学》用到的部分程序，比较全的。(&quot MATLAB Engineering Mathematics&quot Part of the procedure used to compare the sound.)

共轭梯度算法，改进后的算法，比较好用，已经验证过了。(Conjugate gradient algorithm, the improved algorithm, more useful, has been verified.)

An example of an interactive GUI in matlab

LDPC码的matlab仿真程序，希望对大家有用，不客气，(LDPC codes matlab simulation program, in the hope that useful, at worst,)

模糊自适应PID控制的报告，后面带简单的程序，可以运行，就是抄的部分刘金琨的程序。不懂图的含义可以参考刘金琨的先进PID控制MATLAB仿真。(It s a simple report and simple simulink program about the Fuzzy-PID.)

基于小波变换的多尺度图像边缘检测matlab源代码，实现图像的边缘检测功能和技术(Detection matlab source code multi-scale image edge based on wavelet transform, image edge detection features and technologies)

说明：  1. 编程实现图像傅立叶高通、低通滤波。 2. 尝试傅立叶压缩。 (1. Programming image Fourier high-pass, low pass filtering. 2. Try Fourier compression.)

matlab时频分析工具箱，里面涵盖了大多数能用到的相关函数程序。(matlab time-frequence analysis tools box.)

基于模型设计-系统设计自动化平台 英文资料(Verification by Simulation within the Model-Based Development Process at Continental Automotive Group Business Unit Engine Systems )