k_means

implementation of grid word problem-classic problem in machine learning coarse

This function is for training a codebook for vector quantization. The data set is split to two clusters, first, and the mean of each cluster is found (centroids). The disttance of each vector from these centroids is found and each vector is associated with a cluster. The mean of vectors of each cluster replaces the centroid first. If the total distance is not improved substantially, The centroids are each split to two. This goes on untill the required number of clusters is reached and the improvement is not substantial.

ultra wide band simulation 5

说明：  To find the encryption and decryption of image which is affected by the noise.

全相位离散频谱校正的matlab程序，能得到多频率信号的频率，幅值，相位。(All Phase discrete spectrum correction matlab program, to get multi-frequency signal frequency, amplitude and phase.)

粒子群算法是求解函数优化问题的一种新的进化算法，然而它在求解高维函数时容易陷入局部最优，为了克服这个缺点，提出了一种新的粒子群算法，算法对粒子的速度和位置更新公式进行了改进，使粒子在其最有位置的基础上进行位置更新，增强了算法的寻优(PSO for solving function optimization problems is a new evolutionary algorithm, but it is easy to solve high-dimensional function into local optimum, in order to overcome this shortcoming, a new particle swarm algorithm, algorithm on the particle velocity and location of the update formula has been improved, so that particles in the most positions on the basis of location updates, enhancements, optimization algorithm)

采用半功率法计算阻尼率，避免人工计算带来的误差(Calculated using half-power damping rate, to avoid the error caused by manual calculation)

艾尔肯特插值，非常不错的一种插值方法哦，大家多多鼓励(艾尔肯特interpolation, a very good interpolation Oh, we encourage more)

电动助力转向的仿真模型，是本科毕业设计。(The simulation model of the electric power steering is a graduate design.)

MATLAB 实现RLS算法，已在MATLAB中运行过(MATLAB realization of RLS algorithm, has been running in the MATLAB)