Weibull-distribution-test

大学生数学建模竞赛2003年A题SARS传播题的Matlab代码(Mathematical Contest in Modeling spread of SARS in 2003 entitled A Question Matlab code)

龙格库塔法解简单运动方程,单自由度方程适用，一个简单的应用例子(Solving simple equations of motion Runge-Kutta)

无线定位基本算法TDOA_TOA_AOA tdoa通用算法(TDOA TOA AOA)

code of the inventory project

说明：  一个A*算法的应用案例，在存在多种障碍物的环境下，实现智能体的航路规划(An application case of a * algorithm is used to realize the route planning of the agent in the presence of multiple obstacles)

由于卫星与用户接收机二者的连线方向上存在相对运动，因此引起了载波和伪码的多普勒效应，再加上接收机晶体震荡频率漂移和卫星时钟频漂等原因。接收机实际接收到的卫星载波中心频率一般不再等于信号被发射时的标称频率，这就需要接收机在载波频率一维对信号进行搜索。同时，由于卫星到接收机的距离时刻变化，加上接收机始终相对于GPS时间的偏差又并不固定，因而接收信号的伪码相位值也在改变，所以接收机也要在码相位一维对信号进行搜索。扩频信号的捕获是一个对目标信号频率域和相位域进行的二维搜索过程。(Because of the relative motion between the two of the satellite and the user receiver, the Doppler effect of the carrier and pseudo-code is caused, and the frequency drift of the oscillation of the receiver crystal and the frequency drift of the satellite clock are added. The frequency of the satellite carrier center that the receiver actually receives is generally no longer equal to the nominal frequency of the signal being transmitted, which requires the receiver to search the signal in one dimension of the carrier frequency. At the same time, because the distance between the satellite to the receiver is changed, the deviation of the receiver always relative to the GPS time is not fixed, so the pseudo code phase value of the received signal is also changing, so the receiver also searches for the signal in the code phase. The acquisition of spread spectrum signal is a two-dimensional search process for the frequency domain and phase domain of the target signal)

说明：  对数值进行分析，AP聚类算法是基于数据点间的"信息传递"的一种聚类算法。与k-均值算法或k中心点算法不同，AP算法不需要在运行算法之前确定聚类的个数。AP算法寻找的"examplars"即聚类中心点是数据集合中实际存在的点，作为每类的代表(For numerical analysis, AP clustering algorithm is based on the "information transfer" between data points. Unlike k-means algorithm or k-center algorithm, AP algorithm does not need to determine the number of clusters before running the algorithm. The "examples" searched by AP algorithm is the actual points in the data set as the representative of each class)

说明：  龙格库塔程序源代码，用于解微分方程或微分方程组，给初学者作为参考。(Runge-Kutta program source code for the solution of differential equations or differential equations, as a reference for beginners.)

ATGP endmember extraction algorithm from Washington DC hyperspectral data!

matlab平台上的多重信号处理算法的DOA测角，信噪比，快拍数，信号源数对功率谱的影响(matlab platform, multi-signal processing algorithms DOA angle, signal to noise ratio, the snapshot number, the source of the power spectrum of several)