A5058103687- Spacecraft Design and Technology
- Spacecraft Dynamics and Control
- Solar and Space Plasma Dynamics
- Antenna Design and Optimization
- Space Satellite Systems and Control
- Energy Harvesting in Wireless Networks
- Inertial Sensor and Navigation
- Astro and Planetary Science
- solar cell performance optimization
- Wireless Sensor Networks and IoT
- Advanced MIMO Systems Optimization
- Advanced Computational Techniques and Applications
- Wireless Power Transfer Systems
- Antenna Design and Analysis
- Advanced Power Amplifier Design
- Satellite Communication Systems
- GaN-based semiconductor devices and materials
- Photovoltaic System Optimization Techniques
University of Tartu
2014-2024
Aalto University
2023
Finnish Meteorological Institute
2015
Tartu Observatory
2015
This paper presents the mission analysis, requirements, system design, level test results, as well mass and power budgets of a 1-unit CubeSat ESTCube-1 built to perform first in-orbit demonstration electric solar wind sail (E-sail) technology.The E-sail is propellantless propulsion concept that uses thin charged electrostatic tethers for turning momentum flux natural plasma stream, such wind, into spacecraft propulsion.ESTCube-1 will deploy charge 10 m long tether measure changes in...
In this article, we report on the in-orbit experience - an overview of ESTCube-1 operations from launch until experiment, as well lessons learned five years development and almost two operations. Lessons are identified point view system engineering, electrical mechanical software testing measurements, payload, management. Detailed flight results will be provided in dedicated articles. We hope that other teams can benefit our experience.
This work describes the final design and implementation of electrical power system for ESTCube-1, a 1-unit CubeSat tasked with testing electrostatic tether concept associated technologies electric solar wind sail in polar low Earth orbit.The mission required an efficient reliable to be designed that could efficiently handle highly variable requirements protect satellite from damage caused by malfunctions its individual subsystems, while using only commercial-off-the-shelf components.The was...
The scientific mission of ESTCube-1, launched in May 2013, is to measure the electric solar wind sail (E-sail) force orbit.The experiment planned push forward development E-sail, a propulsion method recently invented at Finnish Meteorological Institute.The E-sail based on extracting momentum from plasma flow by using long thin electrically charged tethers.ESTCube-1 equipped with one such tether, together hardware capable deploying and charging it.At orbital altitude ESTCube-1 (660-680 km)...
This paper presents the design, development, and pre-launch characterization of ESTCube-1 Attitude Determination Control System (ADCS).The design driver for ADCS has been mission requirement to spin up satellite 360 deg•s -1 with controlled orientation axis acquire angular velocity attitude during scientific experiment.ESTCube-1 is a one-unit CubeSat launched on 7 May 2013, 2:06 UTC board Vega VV02 rocket.Its primary measure Coulomb drag force exerted by natural plasma stream charged tether...
In this work, the design of electrical power system developed for ESTCube-1 – first Estonian satellite with test mission electric solar wind sail is presented. The highly energy-intensive, and, since its complexity might lead to many possible failure cases, it requires a very efficient and fault-tolerant solution. has been from ground up, using only commercial-off-the-shelf components student workforce. It includes several innovations, which help be more reliable, controllable than earlier...
The scientific mission of ESTCube-1, launched in May 2013, is to measure the Electric solar wind sail (E-sail) force orbit. experiment planned push forward development E-sail, a propulsion method recently invented at Finnish Meteorological Institute. E-sail based on extracting momentum from plasma flow by using long thin electrically charged tethers. ESTCube-1 equipped with one such tether, together hardware capable deploying and charging it. At orbital altitude (660--680~km) there no...
The paper proposes a combinatorial feeding scheme for coupled arrays making it possible to combine and control the output power in air. In this scheme, amplifiers array elements can be switched on off excitation phase of each element selected according intended beam direction level. We derive model combined system antenna verify by simulations. For reference purposes, we design an uncoupled show that proposed concept enables more efficient combining than array.