Tropospheric delay determination by Kalman filtering VLBI data

Application of Kalman filtering in VLBI data analysis

In this paper, we demonstrate the advantage of applying a Kalman filter for the parameter estimation in very-long-baseline interferometry (VLBI) data analysis. We present the implementation of a Kalman filter in the VLBI software VieVS@GFZ. The performance is then investigated by looking at the accuracy obtained for various parameters, like baseline lengths, Earth Orientation Parameters, radio ...

Extended Kalman Filtering by

Time Delay and Data Dropout Compensation in Networked Control Systems Using Extended Kalman Filter

In networked control systems, time delay and data dropout can degrade the performance of the control system and even destabilize the system. In the present paper, the Extended Kalman filter is employed to compensate the effects of time delay and data dropout in feedforward and feedback paths of networked control systems. In the proposed method, the extended Kalman filter is used as an observer ...

Six State Kalman Filtering for LEO Microsatellite Attitude Determination

Abstract— The attitude determination and control subsystem (ADCS) requirement of payload on the Algerian Satellite (Alsat-1) is stringent enough to demand some type of data processing in order to meet attitude determination requirements. Two vector magnetometers and four dual sun sensors are carried in order to determine the attitude. This paper describes the various steps of the design and the...

Kalman Filtering

Consider the following state space model (signal and observation model). Y t = H t X t + W t , W t ∼ N (0, R) (1) X t = F t X t−1 + U t , U t ∼ N (0, Q) (2)