Unmanned aerial vehicle experience different atmospheric uncertainties during their flight. These uncertainties caused the problem in the stability and the desired performance of the system. This research paper structured to nullify the influence of atmospheric turbulence and ground effect on the UAV. The models of Dryden turbulence is used as it is one of the major disturbances affecting the U...

Laser communication between satellites in the constellation and from to ground stations offers a gigantic data rate for users. This principal advantage drives telecom companies develop this technology use it like carrier signal, most disadvantage of is need very complicated pointing systems transmitter receiver due small beam divergence, continually moving orbits distance (tens thousands kilome...

Atmospheric flight phase of a launch vehicle is utilized to evaluate the performance of an H∞ controller in the presence of disturbances. Dynamics of the vehicle is linearly modeled using time-varying parameters. An operating point was found to design a robust command tracker using H∞ control theory that guarantees a stable maneuver. At the end, the controller was employed on the launch vehicle...