UKF

logit model for travel demand analysis

首先从n个数据对象任意选择 k 个对象作为初始聚类中心；而对于所剩下其它对象，则根据它们与这些聚类中心的相似度（距离），分别将它们分配给与其最相似的（聚类中心所代表的）聚类；然后再计算每个所获新聚类的聚类中心（该聚类中所有对象的均值）；不断重复这一过程直到标准测度函数开始收敛为止。一般都采用均方差作为标准测度函数. k个聚类具有以下特点：各聚类本身尽可能的紧凑，而各聚类之间尽可能的分开。(First, a data object from the n choose k objects as initial cluster centers and for the rest of the other objects, according to their similarity with the cluster center (distance), respectively, assign them to their most similar (represented by cluster center) clustering then calculated for each cluster center received a new clustering (all objects in the cluster mean) repeats this process until the convergence criteria begin until the measure function. Standard deviation is generally used as a standard measure function. K a cluster has the following characteristics: the cluster itself as a compact, but separated as much as possible between each cluster.)

说明：  Dijkstra算法求解非负有向图的最短路径，算法的MATLAB实现。分享推荐。(Dijkstra algorithm to the graph of non-responsibility shortest path algorithm of MATLAB implementation. Sharing recommended.)

Digital image processing is the processing and display of images. Emphasis is placed on the modification of the image. There are three main categories of image processing

室内环境射线跟踪算法研究，室内反射点追踪的计算(Indoor environmental ray tracing algorithm to calculate the reflection point indoor track)

利用matlab搭建的三相桥式整流模型，可通过模型分析其波形及谐波情况(The three-phase bridge rectifier model based on Matlab can be used to analyze the waveform and harmonic of the model.)

说明：  求解最短路问题，求解图论中任意两点间最短距离(Solving the Shortest Path Problem)

独立成分分析代码 这是ICA的源码和改进的代码(this is the code of ICA，this is the improved code for the traditional ICA)

可以计算两端固定的平面梁的挠度，当划分的单元越多时，梁的挠度值逐渐趋于稳定 (Can calculate the plane beam fixed at both ends of the deflection, when the division of the more units for some time, beam deflection gradually stabilized)

用MOM计算V型天线的电流分布、输入阻抗及辐射方向图。其中L=0.3λ，L/a=2000，激励用δ-gap模型。(MOM calculated using V-shaped antenna current distribution, input impedance and radiation pattern. Where L = 0.3λ, L/a = 2000, excitation δ-gap model.)