单阈值图像分割

语音信号处理中基音检测源程序，用matlab实现的。主要应用了改进的自相关技术。(Pitch detection in speech signal processing source code, using matlab be achieved. Major applications to improve the self-related technologies.)

This function is equivalent to matlab fft2 function, but without using for loops, instead this function is implemented using matrix multiplication.

阵列信号处理信源数估计算法，用来估计信源数目(Matlab code of state-of-the-art 1-D model order selction (also known as source enumeration, estimating the number of source ignals impinging on an array of sensor) methods. The main function "main.m" compares the performance of them.)

说明：  针对一般的粒子群优化(PSO)学习算法中存在的容易陷入局部最优和搜索精度不高的缺点,对改进型PSO算法进行研究。由于惯性权重系数ω对算法是否会陷入局部最优起到关键的作用,因此,通过改变惯性权重ω的选择,对惯性权重系数采取线性减小的方法,引入改进型的PSO算法。采用改进的PSO算法对PID控制器进行参数优化并把得到的最优参数应用于控制系统中进行仿真。仿真实验结果表明:改进型PSO算法不会陷入局部最优,能得到全局最优的PID控制器的参数,并使得控制系统的性能指标达到最优,控制系统具有较好的鲁棒性。(Aiming at the shortcomings of general PSO learning algorithm, which is easy to fall into local optimum and low search precision, the improved PSO algorithm is studied)

The QSystemSemaphore class provides a general counting system semaphore for Linux.

matlab教程，类似计算机语言，很适合初学者的学习教程。(matlab tutorial, similar to computer language, it is suitable for beginners to learn tutorial.)

给定栅格图像及其变形后的栅格图像，请你首先确定各栅格交叉点的位移，然后采用控制栅格的方法编写实现图像几何校正的程序(Given its raster image raster image after deformation, you first determine the displacement of each grid intersection, and then using the method of preparation of the control grid of image geometric correction procedures)

QPSk Modulation using matlab spread spectrum systems MATLAB source code, wireless spread-spectrum communication system function

说明：  轮式机器人差速驱动下的圆形轨迹程序，可修改参数。(Round trajectory program driven by differential speed of wheeled robot.)

利用matlab程序对正交频分复用中的信道进行了模拟(Matlab program to use orthogonal frequency division multiplexing in the channel to simulate)