The paper presents a study of decentralized control for satellite formation flying mission that uses differential lift and drag to enforce the relative positioning requirements. All spacecraft are equipped with large sunlight reflectors so that, given appropriate lighting conditions, as whole can be made visible from Earth configurable pixel image in sky. analyzes possibility achieving pre-defined lineup by implementing aerodynamic-based through orientation incoming airflow. required...

The paper presents a feasibility study of satellite formation-flying missions for space advertising. To estimate advertising mission viability, the global population coverage model is designed and demonstration schedule with focus on larger cities optimized formation small satellites deployed in repeat ground track Sun-synchronous orbits. Monetization an image over city depends population, outdoor cost, parameters limiting number potential observations. Formation lifetime expressed terms...

Abstract Low Earth orbits (LEO) are known as a region of high space activity and, consequently, debris highest density. Launcher upper stages and defunct satellites the largest objects, whose collisions can result in still greater pollution, rendering further missions LEO impossible. Thus, remediation is necessary, primary target active removal (ADR) projects. However, ADR planning requires at least an approximate idea candidate objects’ attitude dynamics, which one incentives for our study....

An attitude determination and control system (ADCS) model is presented, which used for CubeSat preliminary design stages in accordance with the European Space Agency (ESA) concurrent approach. The implemented Matlab/Simulink integrated into Concurrent Design Platform. model's performance exemplified by a mission conducted Engineering Lab at Skoltech.

This paper addresses the attitude control of nano-spacecraft with three reaction wheels and magnetorquers in low Earth orbits, develops algorithms to maintain when any one completely fails. In event a wheel failure, it is shown that key challenge maintaining accurate autonomous three-axis tracking problem singularity avoidance allocation. particular, law singularities occur depending on type orbit, environment, attitude, where system no longer controllable. Two algorithmic techniques based...

We design the navigation and control system for unmanned aerial vehicle (UAV) with four tilting rotors. The considered UAV implements so-called X-sceme, which implies main body symmetrical beams, upon rotors propellers are mounted. It is different from classical quadrotor by having additional servomotors that may change orientation of respect t body, thus increasing parameters number. Greater number actuators in system, on one hand, opens new venues UAVs’ applications but, other makes...

Low Earth orbits (LEO) are known as a region of high space activity and, consequently, debris highest density. Launcher upper stages and defunct satellites the largest objects, whose collisions can result in still greater pollution, rendering further missions LEO impossible. Thus, mitigation is necessary, primary target active removal (ADR) projects. However, ADR planning requires at least an approximate idea candidate objects' attitude dynamics, which one incentives for our study. This...

The Rostov State Transport University (RSTU) is actively developing the direction of virtual and augmented reality, most modern computer complexes networks, software that allows students to create both training gaming applications. In particular, simulators have been developed for car inspector, studying diagnosing switches, electric actuators, arrow control circuits, a train departure process from station. On basis RSTU, laboratory rolling stock are being created railway transport...

The paper delineates the magnetic controller gains tuning procedure for an active attitude control system of a CubeSat in ISS orbit.The optimization is conducted arbitrary required given orbital reference frame spacecraft.The study has been as part Skoltech University project to deploy swarm 3U CubeSats collective gamma-ray bursts detection, which requires satellites' coordinated control.We consider four identical exhibiting behaviour by optimal task allocation on receipt command from...

This paper is devoted to the dynamics of a multi-tethered tetrahedral satellite formation.The proposed formation consists spinning tethered triangle and free-flying spacecraft orbiting at LEO.It shown that proper choice spin rate causes it change its orientation due gravity-gradient torque track changes periodic inertial position because argument perigee drift.Furthermore, design J2-invariant relative orbits utilized minimize any undesired drift.The passive control strategy results in...

This study is a part of Swarm CubeSat mission presently designed in Skoltech. We present low-cost magnetic cleanliness routine for CubeSats to minimize the produced disturbances during steps design and assembly along with constructing spacecraft-specific disturbance model which subsequently used attitude determination control loop CubeSat. are using in-house software calculate due currents flowing through electric components. The procedure imports components then calculates electrical...