Solve the standard basis pursuit program using a primal-dual algorithm,The key code of GBP is provided by Justin Romberg Reference: E. Candes and J. Romberg, “l1-Magic: Recovery of Sparse Signals via Convex Programming,” 2005.

建立了车辆—轨道偶合动力学模型，使用Romberg观测器观测了轮对位移、轮对速度、车体速度等系统状态量。(The vehicle-track coupling dynamic model is established, and the wheel-set displacement, wheelset velocity, vehicle body velocity is observed by using Romberg observer.)