中文说明：代码里有很完整的注释和解释，是一种双隐层反向传播神经网络，是本科毕设的题目，相控阵天线的方向图（切比雪夫加权），基于分段非线性权重值的Pso算法，虚拟力的无线传感网络覆盖。
English Description：
Code is a complete annotated and explained, is a double hidden layer backpropagation neural network, is the undergraduate graduation design topic, phased array antenna directional diagram (Chebyshev weighted), based on piecewise nonlinear weights of the PSO algorithm, wireless sensor network for virtual force coverage.