IEEE

Integral Reinforcement Learning Control of an Uncertain 2-DOF Helicopter System With Input Quantization and State Constraints

Abstract: This study presents an integral reinforcement learning (RL) control strategy for an uncertain two-degree-of-freedom (2-DOF) helicopter system by considering the input quantization and state ...
IEEE

Robust Fixed-Time Sliding Mode Attitude Control for a 2-DOF Helicopter Subject to Input Saturation and Prescribed Performance

Abstract: This article explores the issue of robust attitude control for a two-degree-of-freedom helicopters (2-DOF helicopters) system under the fixed-time (FT) control rule. Thanks to the ...
USA Today

US admits Army, air traffic control failures in deadly crash near DC

The U.S. government admitted the role Army pilots and air traffic controllers played in the deadly collision involving a military helicopter and a passenger jet that killed 67 people near Washington, ...
CNN

US government admits Army and air traffic controller failures in deadly midair collision near DC

The US government now admits failures by the pilots of an Army Black Hawk helicopter and a controller in the Reagan National Airport tower during the January 29 midair collision over the Potomac River ...