A revised Particle Swarm Optimization (PSO) algorithm is used to solve the upper problem and the Gradient Projection Algorithm with affine scaling is employed as the lower level problem solver.

• 上层模型采用了一种直接处理约束的改进的粒子群算法，下层则采用仿射尺度内点算法，得到了一种信号控制二层规划模型。