Sepehr Ariaei

- Enhanced real-time GNSS receivers and simulators by implementing software improvements. - Implemented complex bit/frame synchronization and encoding/decoding algorithms for GNSS signals (GPS, Galileo, and BeiDou), in compliance with ICD standards including message authentication (OSNMA) and High Accuracy Service (HAS). - Collaborated with a major European space prime on the G2G Test User Receiver non-PRS project, advancing receiver development and validation, and contributing to problem-solving boards.

- Mechanical design and manufacture, project management, procurement and development of a prototype in-situ airborne cloud observation instrument. - Maintenance of the PHIPS-HALO instrument for field campaigns, flying on DLR HALO and NASA P3 research aircraft. - Laboratory work including laser characterization and calibration of optical and scientific measuring instruments, working with oscilloscope, circuit design, wiring.

- Participation in CAD (Inventor) design, review and manufacture of a solid fuel combustion chamber for flame propagation behavior under reduced gravity at flow velocities typical for human spaceflight - Reverse engineering and design of an airplane adapter spacer for a propeller mounting. - Dynamic image tracking of fuel droplets in a microgravity experiment in MATLAB.

-"Formation Flying of Satellites" from two-body concepts to large scale micro-satellite constellations. -Testing of accelerometers and gyros developed by ZARM. -Orbit, attitude and perturbation propagation modeling by XHPS tool. -Implementation of formation flying scenarios. -Satellite system modelling by means of finite element preprocessors. -Development of sensors interface models with MATLAB/Simulink, C/C++ and ANSYS.

Responsible for quality assurance of turbine blades using programs CAD++.

-Hired by a mini-robotics company which produced educational robot kits, I taught high school students how to construct simple robots such as Pathfinder. -The students were taught a range of skills from basic coding micro-controllers and understanding electronic subsystems to its physical assembly and soldering. ORGANIZATIONAL

- GNC/AOCS, Advanced Spacecraft Control, Formation Flying, Astrodynamics, Orbital Dynamics and Flight Mechanics, Orbit determination, Design of Spacecraft Subsystems, Space Telecommunication, Space Debris and Design of Electronics For Space.

- Thermodynamics, Fluid Dyanmics, CFD, Combustion Engines, Automotive Engineering, Machine Design and Jet Engines.