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.
Kalman filter used in seeker system for target tracking may induce low precision because of the equation linearization and the real time tracking performance of the seeker may be broken down. A real time Kalman filter with high precision is introduced and this algorithm is deduced in the line of sight reference frame via coordinate transformation. The effectiveness of the algorithm is shown trough...
Based on the physical dynamic properties model of the intake system (from the state equation and measurement equation) and the intake system model and the statistical properties assumption of sensor noise, the measured data was mapped to the state space. Then using the state predictor, through the EKF (Extended Kalman Filter) , preprocessing the data from the intake manifold absolute pressure sensor,...
Two-side optimal problem of pursuit-evasion conflicts is studied in this paper, and a new missile guidance law for air defense missile intercepting maneuver target is developed. The guidance law could be called as Reduced Sensitivity Guidance Law (RSGL), which is based on the differential game theory and the capacity of target maneuver. The mathematical model of RSGL is solved by riccati equation...
A method of multi-UAV positioning based on Delaunay triangulation is proposed in this paper. Considering that the durable UAV's navigation cannot hold a good accuracy in long distance when GPS signal is denied, the UAV's location can be calculated using the relative range from the other teams. Similar to the principle of GPS, the method takes three other UAVs as the reference points for an UAV whose...
Mass property of space vehicle changes apparently during and after mating and cannot be predicted or measured at times, yet it needs to be accurately known for mated flight control or attitude control and momentum management. A discrete Kalman Filter (KF) based estimation method is developed, measurements of single point acceleration, angular velocity and angular acceleration are employed to extract...
In this paper we propose a state space model to predict failed companies based on Kalman filter theory which is creative in the field of finance. A Kalman filter is simply an optimal recursive data processing algorithm which is in the form of a set of equations that allows an estimate to be updated once a new observation becomes available. Given a set of parameters (mainly of financial nature) it...
This paper proposes a nonlinear velocity observer for output regulation of ball and plate system. Ball velocities are estimated by state observer instead of first order difference method. Dynamics of motion resistances are included and estimated in augmented state space. Simulation and experimental results on ball and plate platform have shown that nonlinear state observer provided reliable estimation...
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.