pulse-compress

混沌粒子群优化（CPSO, Chaos Particle Swarm Optimization）算法融合了PSO算法的快收敛和CO算法的遍历随机等特点，在PSO算法每一代挑选出的最优解附近的区域里，用混沌算法进一步搜索，防止其陷入局部最优值，从而改进了PSO算法的不足，成为一种高效的优化算法。(Chaotic Particle Swarm Optimization (CPSO, Chaos Particle Swarm Optimization) algorithm combines the features of the PSO algorithm fast convergence and CO traversal algorithm randomly each generation in the PSO algorithm selected area near the optimal solution, further chaos algorithm search prevent it from falling into local optimal value, thus improving the deficiencies of the PSO algorithm, an efficient optimization algorithm.)

单领航者基于距离的协同导航定位, EKF算法, 算法流程部分可以封装为函数直接调用, 还给出了初始化, 用的时候自己分开.(EKF Collaborative navigation based on distance with single leader )

说明：  利用matlab画平面坐标轴，可自定义坐标长度和刻度。(Painting using matlab axis plane, can be customized in length and scale coordinates.)

生成拍波信号：由自己控制采样频率，拍波频率，拍波个数，拍波周期数和拍波之间的时间间隔和拍波幅值，能生成符合上述要求的任意拍波。(Generate beat-wave signal: control by its own sampling frequency, beat-wave frequency, the number of beat-wave, beat-wave cycles and the time interval between the beat-wave amplitude and beat, meet the above requirements can generate any beat-wave.)

Questions for digital system and microprocessor

KMEANSK Performs K-means clustering given a list of feature vectors and k The argument k indicates the number of clusters you want the data to be divided into. data_vecs (N*R) is the set of R dimensional feature vectors for N data points. Each row in data_vecs gives the R dimensional vector for a single data point. Each column in data_vecs refers to values for a particular feature vector for all the N data points. The output data_idxs is a N*1 vector of integers telling which cluster number a particular data point belongs to. It also outputs centroids which is a k*R matrix, where each rows gives the vector for the cluster center. If we want to segment a color image i into 5 clusters using spacial and color information, we can use this function as follows:

无线信号发送主要采用多位数据格式，编码可达上百万个不同重复(Wireless signal mainly adopts several data format, coding can be up to millions of different repetition)

用于信号处理的matlab小程序。傅里叶变换和傅里叶逆变换(fft or ifft)

controlled Half wave rectifier circuit with inductive load and gives positive half cycle and block negative half cycle.

电力系统中计算潮流的牛顿拉夫逊拉法和PQ快速分解法(newton method and PQ method)