Zachary T. Dydek

Learn More
A simulation environment is developed to assist in the design, development, and validation of complex controllers with applications to mini-UAVs, such as the fourrotor DraganFly RC helicopter (quadrotor). The simulation system is modular and includes interfaces which allow for substitution of software subsystems with hardware components. This approach(More)
Adaptive control is considered to be one of the key enabling technologies for future high-performance, safety-critical systems such as air-breathing hypersonic vehicles. Adaptive flight control systems offer improved performance and increased robustness to uncertainties by virtue of their ability to adjust control parameters as a function of online(More)
The NASA X-15 research airplane was one of the earliest aircraft to feature an adaptive control scheme, making its first flight in 1959. The program is largely considered a success, the one exception being the fatal accident that occurred on November 15, 1967. The circumstances which led to the anomalous behavior of the X-15 during that flight are(More)
Adaptive control has been increasingly used in flight control of late, with notable technology transitions to autonomous flight platforms such as Joint Direct Attack Munition (JDAM), X–36 Tailless Fighter Agility Research Aircraft, NASA Generic Transport Model (GTM), and Boeing Phantom Ray. Given the need to make these flight systems autonomous, the(More)
The design tools developed for use with linear controllers such as gain and phase margins do not apply to nonlinear control architectures such as adaptive control. For decades, flight control engineers have used these tools extensively to measure the robustness of their linear control systems and make guarantees on the performance of the closed-loop system(More)
  • 1