Optimizing the operating speed curve of trains without adding new energy storage facilities is essential in energy-saving operation railways. In this paper, we propose an optimal train planning method for driving more efficiently. A refined traction evaluation model induction motor propulsion systems first presented. The proposed considers efficiency at different points and inverter gearbox. Th...

Based on the Wentze–Kramers–Brillouin approximation, we derive formulae to calculate position of convergence zones in a range-dependent environment with sound speed profiles varying linear and ellipsoidal Gaussian eddy cases. Simulation results are provided for Experiment data used calculations considering linearly speed, findings suitably agree simulation results. According evaluated environme...

A new technique is described for estimating the speed of a mobile station in a wireless system. The mobile speed maps the characteristic spatial scale of the received signal into a characteristic temporal scale. The continuous wavelet transform tracks changes in the temporal scale to estimate the mobile speed as a function of time. This technique requires neither knowledge of the average receiv...

The paper deals with speed control for autonomous mobile robots. First a trajectory planner attaches a speed component to the postures of a path by considering speed limitations introduced by the vehicle and by task specifications. In order to provide robustness during task execution in the real world, environment feedback is used to dynamically adjust the speed of the vehicle to the presence o...

The paper deals with speed control for autonomous mobile robots. First a trajectory planner attaches a speed component to the postures of a path by considering speed limitations introduced by the vehicle and by task specifications. In order to provide robustness during task execution in the real world, environment feedback is used to dynamically adjust the speed of the vehicle to the presence o...

The wind farm layout program FLaP (Farm Layout Program) estimates the wind speed at any point in a wind farm and the power output of the turbines. The ambient flow conditions and the properties of the turbines and the farm are used as input. The core of the program is an axis-symmetric wake model, describing the wake behind one rotor. Here an approach based on the simplified Reynolds equation w...