Title:Hypothalamic-pituitary-adrenal axis functioning and dysfunctional attitude in depressed patients with and without childhood neglect

Three-axis magnetometers and three-axis accelerometers are widely used sensors for attitude estimation, yet their accuracy is limited by sensor measurement bias. This paper reports a novel methodology for estimating the sensor bias of three-axis field sensors (e.g. magnetometers and accelerometers). Our approach employs three-axis angular velocity measurements from an angular-rate gyroscope to ...

This paper describes an analog computer simulation of a manned orbital docking system conducted as a fe~sibility study. In addition to determining the possibility of a human operator performing guidance and attitude control functions with a minimum amount of displayed information, additional purposes of the study were to determine (1) terminal values of range rate, line-of-sight (LOS) angle, LO...

Abstract. This work is focused on some recent advances spacecraft dynamical modeling and attitude control. First, the problem of correctly linearizing elastic behavior spinning flexible discussed, an example presented that addresses this topic from both analytical numerical point view. Then, control considered a new feedback law for single axis alignment presented, together with inclusion accur...

in this paper we present a method for optimal design of combined ewma-ewma control scheme. shewhart control chart, introduced by walter shewhart, only takes into account present information of the process, so it is insensitive in detecting small shifts. ewma and cusum control charts are good choices for detecting small shifts. a combined control scheme monitors the process for large and small s...

It is well known that the linear feedback of the quar-ternion of the attitude error and angular velocity globally stabilizes the attitude of a rigid body. In this note, we show that the angular velocity feedback can be replaced by a nonlinear lter of the quaternion, thus removing the need of direct angular velocity measurement. In contrast to other approaches, this design exploits the inherent ...