A modified unscented Kalman filter is presented to estimate the quaternion parameters as
well as the angular velocities of a rigid gyro-less satellite under faulty sensor conditions. The …

Due to the risks that the debris satellites pose to missions, one of the more recent study
subjects in space is the removal of these debris masses from orbit. The usage of tethered …

To solve the problem of communication delays and topology changes and achieve a high-
precision formation configuration control index in the flight control of SAR (synthetic aperture …

The state-dependent Riccati equation (SDRE) is a nonlinear optimal controller with a flexible
structure which is one of the main advantages of this method. Here in this work, this flexibility …

For higher resolution, next-generation space telescopes would be equipped with 10–20 m
scale membrane diffractive primary lenses, and would have 100 m scale focal length. The …

Several recent developments in fractional calculus have led to an increased interest in
fractional-ordered modeling of physical systems. In this paper, complex dynamics of a …

Magnetometer is one of the main sensors in Attitude Determination and Control Subsystem
(ADCS) of Low Earth Orbit (LEO) satellites and since it is operable in all times during an …

مغناطیس‌سنج یکی از سنسورهای اصلی در زیرسیستم تعیین و کنترل وضعیت (ADCS) ماهواره‌های
مدار پایین زمین (LEO) است و با توجه به قابلیت استفاده در تمام زمان‌های یک تناوب مداری، در اکثر …‎