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matlab的数字信号调制仿真-调制识别程序 本文首先对各种通信信号进行了理论分析， 在此基础上针对数字 调制信号采用了基于决策论方法的调制方式识别算法， 并利用 MATLAB 软件进行了计算机仿真。本文的调制识别算法是基于决策论 方法， 该方法具有运算量小， 识别效果好等优点。(matlab simulation of digital signal modulation- modulation recognition procedure in this article a variety of communication signals first theoretical analysis on the basis of the recognition algorithm based on decision theory methods of modulation for digital modulation signals and a computer simulation using MATLAB software . The modulation recognition algorithm is based on decision theory, the method of computing a small amount of good recognition effect.)

根据对真空蒸发镀膜的分析，在40×40的范围内分别蒸 发：1000、5000、10000、20000、30000个粒子。  利用2维数组记录每个点的粒子数。  初始粒的横纵坐标为0～40的均匀分布。  能量为（15，3）的正态分布。  在基体表面自由行走时损失1的能量。  若该点有粒子，即与其他粒子相遇时损失3的能量。  由低处向高处扩散，每扩散一层，损失4的能量，由高处 向低处扩散，损失3的能量。  当粒子的能量小于等于0时停留下来，该点的粒子数加1。  临界核的尺寸为10个粒子。  根据每个点粒子个数的不同，以不同的灰度显示这些点。 点越亮，则表示该点的膜越厚。  以图形方式显示粒子初始能量的正态分布情况(Based on the analysis of the vacuum evaporation coating, respectively, in the range of from 4040 evaporated: 1000,5000,10000,20000,30000 particles.  each point using 2-dimensional array to record the number of particles. The  initial grains transverse and longitudinal coordinates of a uniform distribution of 0 to 40. The  energy as a normal distribution (15,3).  1 energy losses in the substrate surface to walk.  point particles that 3 energy loss in the encounter with the other particles.  by the lower diffusion tops every diffusion layer, a loss of 4 energy diffusion from high to low, the energy loss of 3.  When the energy of the particles is less than or equal to 0:00 stay down, add 1 to the number of particles that point.  critical nucleus size of 10 particles.  these points, depending on the number of particles of each point is displayed in a different shade. Point, the brighter, the thicker the point of the fi)

QPSK调制 经典，非常简洁的产生qpsk的调制方法1(QPSK Modulation)

Calculate speed and acceleration of mechanism

使用matlab来对图像进行边缘检测的方法之一，便于在此基础上进行其他的功能的实现(Using matlab to the image edge detection methods, to facilitate this function based on the realization of other)

基于粒子群算法的PID控制器优化设计matlab代码(PID TUNER using PSO matlab code)

JPEG compression A program in order to see how the JPEG method works.

路径损耗的仿真程序，比较简单，但很常用的啊(path loss)

Matlab关于降低OFDM系统的峰均比的PTS算法 (Matlab for reducing OFDM systems are better than the peak of PTS algorithm)

说明：  MATLAB 异步电机变转差率控制 simulink 模型 可供参考(Simlink Model of Variable Slip Rate Control for Asynchronous Motor Based on MATLAB)