The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We compare two types of preconditioners for GPU-Accelerated conjugate gradient solver. For the standard IC preconditioner, we exploit level scheduling to increase multi-thread parallelism of sparse triangular solve on GPU. Meanwhile, we propose a novel reordering technique to maximize the coalescing of global memory accesses. For the approximate inverse preconditioner SSOR-AI, we extend it to second...
This paper addresses an on-line approximation-based robust adaptive control problem for the automatic train operation (ATO) system under actuator saturation caused by constraints from serving motors. A robust adaptive control law is proposed, which is proved capable of on-line estimating of the unknown system parameters and stabilizing the closed-loop system. To cope with actuator saturation, another...
In this paper, a new innovative method for approximating fractional order system by an integer order model is proposed. The Riemann-Liouville's integral is adopted for fractional order operations via block pulse expansion and a new SID (system identification) matrix can be derived to identify the coefficients of an integer order transfer function to approximate the given fractional order system. In...
In this paper, we propose a leveling algorithm based on extended Kalman particle filter (EKPF) for compensating the initial attitude error and the accumulated error. The meaning of leveling in the paper is to acquire two attitude angles of the roll and the pitch of the aircraft during its motion. The EKPF algorithm is applied to our inertial attitude reference unit based on the hemispherical resonator...
The line-of-sight (LOS) stabilization control based on gyro stabilized platform is required to isolate LOS from the movement and vibration of carrier and ensure pointing and tracking for target in electro-optical tracking system. In this paper, a fractional-order PI (FOPI) controller is applied in the design of stabilization loop of LOS stabilization system for the first time, based on the analysis...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.