clean

说明：  QAM 的MATLAB仿真，可以根据自己的需要拆开使用，仿真测试通过(QAM of the MATLAB simulation, can be used according to their needs apart, the simulation test by)

粒子滤波算法在非线性系统中得到了广泛的应用，其精度取决于目标概率函数和重要性函数是否相近，并且样本退化问题也影响了算法的性能。针对粒子滤波算法中样本退化的问题，本文提出一种基于奇异值分解的粒子滤波算法。该算法通过使用奇异值分解方法得到的重要性概率密度函数更接近于目标概率分布，降低样本退化的影响，提高了滤波器的精度，然后在列车组合定位系统的数学模型中应用该算法进行仿真实验。 (Particle filter algorithm for nonlinear systems is widely used, its accuracy depends on whether the target probability function and importance of the functions are similar, and sample degradation also affects the performance of the algorithm. For particle filter algorithm sample degradation problem, this paper proposes a particle filter algorithm based on singular value decomposition. The algorithm by using singular value decomposition of the importance of the probability density function method to get closer to the target probability distribution, reduce sample degradation, improve the accuracy of the filter, and then apply the algorithm in combination mathematical model train positioning system simulation experiments. The simulation )

认知无线电，无线通信，matlab仿真代码(cognitive radio wireless communications matlab code)

这是用matlab语言编写的应用程序，主要对SP3精密卫星星历的处理。(This is an application written in matlab, mainly SP3 precise satellite ephemeris processing.)

三种角点提取方法的matlab程序，用于摄像机标定。(three methods of corner extract based on matlab。)

differential evolution

the update data figure of nn net in signal processing, and it is the matlab code

说明：  简单的实现了weiner滤波的功能，可以用于信号处理，可以用(Simple implementation of the weiner filtering function can be used for signal processing)

基于曲率尺度空间（CSS）的图像边缘特征点检测matlab程序。(Detection matlab program based on curvature scale space (CSS) image edge feature points.)

利用MATLAB，对16QAM信号进行仿真。(The use of MATLAB, the simulation of 16QAM signal.)