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实现近场波束形成，主要的还有加窗的功能，希望大家交流一下，其他的都不说了 ，近场波束和加窗(Achieve near-field beamforming, the main window also add features, I hope to share what the other did not say, near-field beam and windowing)

TDOAAOA定位的扩展卡尔曼滤波定位算法(Positioning TDOAAOA extended Kalman filter algorithm)

很好的卡尔曼滤波程序，kalmanlvbo(good Kalman filtering procedures, kalmanlvbo)

使用蒙特卡罗方法计算积分和体积的Matlab代码,适合初学者。(calculated using the Monte Carlo method and size of the integration of Matlab code for beginners.)

说明：  该方法自适应地将一个复杂的非平稳的多分量信号分解为若干个瞬时频率具有物理意义的乘积函数（Product function,简称PF）之和，其中每一个PF分量由一个包络信号和一个纯调频信号直接求出。包络信号就是该PF分量的瞬时幅值，而PF分量的瞬时频率则可以由纯调频信号直接求出，进一步将所有PF分量的瞬时幅值和瞬时频率组合，便可以得到原始信号的完整的时频分布。(This method adaptively decomposes a complex non-stationary multi-component signal into the sum of several product functions (PF) with physical meanings at instantaneous frequencies, where each PF component consists of an envelope signal and a pure The FM signal is directly obtained. The envelope signal is the instantaneous amplitude of the PF component, and the instantaneous frequency of the PF component can be directly obtained from the pure frequency modulation signal. Further, the instantaneous amplitude of all PF components and the instantaneous frequency are combined to obtain the complete original signal. Time-frequency distribution.)

本文为MATLAB一篇详细的教程，看完之后入门应该会容易的多(This article gives a detailed tutorial MATLAB, after reading the entry should be much easier)

一个二维静电场，电位函数为φ（x, y），将正方形分成25个正方形网格。有16个内部网格点。假定16个网格点的初值都定为零，试用超松弛法确定16个内部网格点的电位值。(A two dimensional electrostatic field, the potential function for phi (x, y), the square into 25 square grid. There are 16 internal grid point. Assume that 16 mesh point of initial value at zero, trial overrelaxation method to determine the potential value of 16 internal grid point.)

说明：  扩频与解扩仿真实验，用matlab可以完全实现，图形也正确(The simulation experiment of spread spectrum and despreading can be realized by MATLAB, and the graph is correct)

基于MATLAB的QPSK过程编程,并且对其过程的信号流程进行分析,用星座图分析其误码率(The QPSK based on MATLAB programming process, and its process of signal flow analysis, using the constellation diagram to analyze the bit error rate)

利用互信息对图像进行配准，使用的是matlab自带的优化工具箱(image registration using mutunal information ,this is good method,though it s so simple)