This study surveys the developments in the gyroless attitude determination system,
especially for small satellites. Two kinds of gyroless satellite attitude determination …

This paper proposes using TRIAD and Unscented Kalman Filter (UKF) algorithms in a
sequential architecture as a part of a small satellite attitude estimation algorithm. This …

This paper describes the development of a gyroless attitude determination system that can
rely on magnetometer and sun sensor measurements and achieve good accuracy. Vectors …

The attitude estimation of a spacecraft in low Earth orbit is considered with the design of two
different adaptation rules in the extended Kalman filter (EKF) algorithm. The adaptations are …

There has been an increasing interest in multi-disciplinary research on multisensor attitude
estimation technology driven by its versatility and diverse areas of application, such as …

It is presented in this article how to simultaneously alter the process and measurement noise
covariance matrices for nontraditional attitude filtering technique. The unscented Kalman …

Abstract The integrated Singular Value Decomposition (SVD) and Unscented Kalman Filter
(UKF) method can recursively estimate the attitude and attitude rates of a nanosatellite. At …

Single-frame methods of determining the attitude of a nanosatellite are compared in this
study. The methods selected for comparison are: Single Value Decomposition (SVD), q …

In the context of Kalman filters, the predicted error covariance matrix P k+ 1 and
measurement noise covariance matrix R are used to represent the uncertainty of state …

We propose an attitude filtering and magnetometer calibration approach for nanosatellites.
Measurements from magnetometers, Sun sensor and gyros are used in the filtering …