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From:Communications of the ACM (Vol. 37, Issue 1) Peer-ReviewedThe 1980s saw a tremendous increase in the use of digital electronics in newly developed airliners. The regulatory requirement for a flight engineer's position on larger airplanes had been eased, so that only two pilots...
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From:International Journal of Aerospace Engineering (Vol. 2017) Peer-ReviewedThis paper investigates the fixed-time attitude tracking control problem for flexible spacecraft with unknown bounded disturbances. First, with the knowledge of norm upper bounds of external disturbances and the...
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From:Mathematical Problems in EngineeringPeer-ReviewedA robust control allocation scheme is developed for rigid spacecraft attitude stabilization in the presence of actuator partial loss fault, actuator failure, and actuator misalignment. First, a neural network fault...
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From:Mathematical Problems in EngineeringPeer-ReviewedA development procedure for a low-cost attitude and heading reference system (AHRS) based on the distributed filter has been proposed. The AHRS consists of three single-axis accelerometers, three single-axis gyroscopes,...
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From:Mathematical Problems in Engineering (Vol. 2021) Peer-ReviewedThe unknown disturbances and the changing uncertainties bring difficulties for designing a stable attitude controller for UAV. In this paper, a novel adaptive fault-tolerant attitude control approach is designed based on...
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From:International Journal of Aerospace Engineering (Vol. 2018) Peer-ReviewedA new integrated guidance and control (IGC) law is investigated for a homing missile with an impact angle against a ground target. Firstly, a control-oriented model with impact angle error of the IGC system in the pitch...
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From:National Forum (Vol. 81, Issue 1)One of the clearest trends in the late twentieth century has been the incheasing growth and complexity of automation in modern society. The automation of mechanical systems that accompanied the industrial revolution in...
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From:Government Computer News (Vol. 23, Issue 28)The Federal Aviation Administration is deploying software to track air traffic control personnel and provide a snapshot of what controllers do and when. FAA plans by June to complete installation of the Air Traffic...
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From:Government Computer News (Vol. 6, Issue 11)Grumman Data Systems Corp's New Display and Control System (NDCS) is designed to reduce test times and costs by handling classified and unclassified flight tests simultaneously. The flight test system has four...
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From:International Journal of Aerospace EngineeringPeer-ReviewedThe main purpose of this paper is to develop an onboard adaptive and robust flight control system that improves control, stability, and survivability of a small unmanned aerial system in off-nominal or out-of-envelope...
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From:Mathematical Problems in EngineeringPeer-ReviewedAttitude dynamic model of unmanned aerial vehicles (UAVs) is multi-input multioutput (MIMO), strong coupling, and nonlinear. Model uncertainties and external gust disturbances should be considered during designing the...
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From:Advances in Artificial IntelligencePeer-ReviewedThis paper presents the design of modified radial basic function neural controller (MRBFNC) for the pitch control of an aircraft to obtain the desired pitch angel as required by the pilot while maneuvering an aircraft....
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From:Mathematical Problems in EngineeringPeer-ReviewedMost spacecrafts are designed to be maneuvered to achieve pointing goals. This is accomplished usually by designing a three-axis control system, which can achieve arbitrary maneuvers, where the goal is to repoint the...
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From:Mathematical Problems in EngineeringPeer-ReviewedThis paper investigates the overadaptation problem in current adaptive sliding mode control (ASMC) for rigid spacecraft attitude maneuvers. The inertia matrix uncertainty and external disturbance are taken into account,...
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From:Mathematical Problems in Engineering (Vol. 2017) Peer-ReviewedConsidering that many factors such as actuator input dead zone, backlash, and external disturbance could affect the exactness of trajectory tracking, therewith a robust adaptive neural network control scheme on the...
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From:Mathematical Problems in EngineeringPeer-ReviewedContinuous system can be discretized for computer simulation. Quantized state systems (QSS) method has been used to discretize time invariant systems based on the discretization of the state space. A HLA based QSS...
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From:Air & Space Power Journal (Vol. 31, Issue 1) Peer-ReviewedMoore's Law states that the processing power of electronic devices doubles every 18 months. This doubling has improved the capability of friendly military systems and those of our adversaries. Extrapolating this trend...
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From:International Journal of Aerospace EngineeringPeer-ReviewedA new method of integrated guidance and control for homing missiles with actuator fault against manoeuvring targets is proposed. Model of the integrated guidance and control system in the pitch plane with actuator fault...
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From:Mathematical Problems in EngineeringPeer-ReviewedThe antidisturbance fault tolerant control problem of attitude control systems for microsatellite is investigated in the presence of unknown input delay, stuck faults from the reaction wheel and the multiple...
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From:Mathematical Problems in EngineeringPeer-ReviewedThe design of the spacecraft Attitude Control System (ACS) becomes more complex when the spacecraft has different type of components like, flexible solar panels, antennas, mechanical manipulators and tanks with fuel....