基于欧几里得距离的聚类分析，一种流形学习算法（很好用），相控阵天线的方向图（切比雪夫加权），仿真效果非常好，包括随机梯度算法，相对梯度算法。-Clustering analysis based on Euclidean distance, A fluid manifold learning algorithm (good use), Phased array antenna pattern (Chebyshev weights), Simulation of the effect is very good, Including stochastic gradient algorithm, the relative gradient algorithm.