包括最小二乘法、SVM、神经网络、1_k近邻法,相控阵天线的方向图（切比雪夫加权），正确率可以达到98％。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Phased array antenna pattern (Chebyshev weights), Accuracy can reach 98 .