Euihyeon Choi (최의현)

Ph.D. Student in Aerospace Engineering | Georgia Institute of Technology

Euihyeon Choi Portrait

Biography

Hello! I am Euihyeon Choi. My name is pronounced E-hyun ("Eui" as in the letter 'E' and "hyeon" as in 'Hyundai'), and I am a Ph.D. Student in the Daniel Guggenheim School of Aerospace Engineering at the Georgia Institute of Technology.

Before joining Georgia Tech, I worked as a Researcher at the Aerospace Technology Research Institute within the Agency for Defense Development (ADD) in South Korea. I received my Master of Science in Aerospace Engineering, as well as a Bachelor of Science in both Aerospace Engineering and Physics (Double Major) from the Korea Advanced Institute of Science and Technology (KAIST).

Research Interests

My research focuses on developing optimization-based frameworks for high-level decision-making in space systems operations, multi-agent mission planning, and complex engineering architectures. By integrating high-fidelity engineering analysis with mathematical programming and operations research, I aim to provide rigorous, scalable insights for the design, synthesis, and operation of next-generation aerospace systems.
Space Systems Operations On-Orbit Servicing & Trajectory Design Multi-Agent Task Allocation Planetary Surface Exploration System Architecture Optimization Mathematical Programming & OR

Education

  • Ph.D. Student, Aerospace Engineering, Georgia Institute of Technology, 2024–Present
  • M.S., Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST), 2024
  • B.S., Aerospace Engineering and Physics (Double Major), Korea Advanced Institute of Science and Technology (KAIST), 2019

Selected Publications

Research Thrusts

Thrust 1: Space Systems Operation & Mission Optimization

Focus: On-orbit servicing operations, integrated routing and trajectory design, and mission scheduling.

Moving beyond macro-level logistics architectures, this thrust focuses on the high-fidelity operational optimization of space assets. By coupling orbital mechanics (e.g., high- or low-thrust transfers) with high-level routing and scheduling, this research develops mathematical frameworks to maximize operational efficiency for satellite constellation servicing, asteroid mining, and in-space recycling for sustainable space operations.

Space Systems Operation Concept Diagram
Source: Choi & Ho, JSR (2026)
Thrust 2: Multi-Agent Task Allocation & Planetary Surface Exploration

Focus: Cooperative routing, heterogeneous agents, and autonomous decision-making under uncertainty.

This thrust designs cooperative routing and task allocation algorithms tailored for heterogeneous agents (such as aerial-ground collaborative systems) in terrestrial mission operations or planetary surface exploration. The core research centers on mathematically modeling complex value systems, practical fuel/distance constraints, and utilizing heterogeneous capabilities to enable autonomous decision-making.

Multi-Agent Task Allocation Diagram
Source: Choi & Ahn, JAIS (2025)
Thrust 3: System Architecture Design & Complex Engineering Optimization

Focus: Systems engineering methodologies, architectural synthesis, and strategic infrastructure planning under uncertainty.

This thrust leverages operations research and mathematical programming to formalize and optimize the high-level architectures of complex engineering systems. By integrating multidisciplinary constraints, multi-objective trade-offs, and environmental uncertainties, this research provides rigorous, scalable decision-making tools for next-generation engineering systems.

System Architecture Optimization Design
Source: Kim et al., JMD (2025)

Journal Articles

  1. E. Choi and J. Ahn, "Optimal Routing for In-Situ Resource Utilization-Based Planetary Surface Explorations," Journal of Aerospace Information Systems (Accepted).
  2. E. Choi and K. Ho, "Formulation and Analysis for Integrated Spacecraft Routing and Trajectory Design Problem," Journal of Spacecraft and Rockets (Accepted).
  3. B. Gwon*, E. Choi*, J. Lee, and J. Ahn, "Multi-UAV Task Allocation and Real-Time Re-plan Strategy with Refueling," International Journal of Aeronautical & Space Sciences, (Accepted) [*These authors contributed equally].
  4. J. Choi, J. Lee, E. Choi and J. Ahn, "Sequential Vertiport Location Optimization Considering Uncertain Social Benefit," Journal of Aerospace Information Systems, 2026, pp. 1–16.
  5. E. Choi and K. Ho, "Orbital Depot Location Optimization for Satellite Constellation Servicing with Low-Thrust Transfers," Journal of Spacecraft and Rockets, Vol. 63, No. 1, 2026, pp. 4–13.
  6. C. Moon, E. Choi, and J. Ahn, "Aerial-Ground Collaborative Routing with Uncertain Exploration Value," International Journal of Aeronautical & Space Sciences, Vol. 26, 2025, pp. 2817–2841.
  7. J. Kim, E. Choi, J. Ahn, E.S. Suh, J. Kim, and D.G. Lim, "Mathematical Programming-Based Design Structure Matrix Clustering for Modular Architecture Design," Journal of Mechanical Design, Vol. 147, No. 10, 2025, 101401.
  8. E. Choi and J. Ahn, "Optimal Multi-agent Grouping and Routing with Cooperative Tasks," Journal of Aerospace Information Systems, Vol. 22, No. 3, 2025, pp. 163–176.
  9. E. Choi and W. Chang, "Multi-Agent Task Allocation with Inter-Agent Distance Constraints," Journal of Aerospace Information Systems, Vol. 21, No. 2, 2024, pp. 168–177.
  10. E. Choi and J. Ahn, "Optimal Planetary Surface Exploration with Heterogeneous Agents," Journal of Spacecraft and Rockets, Vol. 60, No. 4, 2023, pp. 1343–1354.
  11. E. Choi and J. Ahn, "Optimal Planetary Surface Routing Considering Exploration Values and Synergies," Journal of Aerospace Information Systems, Vol. 19, No. 6, 2022, pp. 406–420.

Working Papers

  1. B. Gwon, E. Choi, and J. Ahn, "An Integer Linear Programming-Based Framework for Satellite Coverage Optimization Problem Under Operational Constraints," International Journal of Aeronautical & Space Sciences (Major Revision).
  2. E. Choi, J. Lee, and J. Ahn, "Multi-Commodity Lunar Campaign Optimization via Leveraging Hybrid Propulsion Systems and Resonance Orbits," Journal of Spacecraft and Rockets (Major Revision).
  3. E. Choi, J. Kim, J. Kim, J. Ahn, "Optimal Design Structure Matrix Clustering with Constraint Selections for Conflict Resolution," Journal of Mechanical Design (Under Review).
  4. J. Kim, E. Choi, E.S. Suh, J-H Kim, and J. Ahn, "Optimal Clustering of Design Structure Matrix for Modular Architecture Design Considering Assembly Costs," (Will be submitted to IEEE Transactions on Engineering Management).

Conference Papers

  1. E. Choi and K. Ho, "In-Space Recycling Logistics Optimization for Circular Space Economy," 2027 AIAA SciTech Forum, January 2027 (Submitted).
  2. T. Noro, K. Ho, E. Choi, S. Han, and M. Isaji, "Low-Thrust Trajectory Optimization via Sequential Convex Programming for On-Orbit Servicing in GEO," The Japan Society for Aeronautical and Space Sciences 57th Annual Meeting, April 2026.
  3. E. Choi and K. Ho, "Optimal Routing and Trajectory Planning for Asteroid Mining with Partial In-Situ Resource Utilization," 2026 AIAA SciTech Forum, January 2026.
  4. E. Choi and J. Ahn, "Optimal Routing Problem with Precedence Constraints for Surface Exploration," 2024 AIAA SciTech Forum, January 2024.
  5. J. Choi, J. Lee, E. Choi and J. Ahn, "Optimizing UAM Vertiport Location in Jeju Island: Incorporating Noise for Public Utility," 2023 Asia-Pacific International Symposium on Aerospace Technology, October 2023.
  6. E. Choi and J. Ahn, "Optimal Short-Term Scheduling for Space Telescope in Low-Earth Orbit," 2023 AAS/AIAA Astrodynamics Specialist Conference, August 2023.
  7. E. Choi, D. Han, and W. Chang, "Decentralized Task Allocation for Multiple UAVs with Iterative Cost Reduction," KSAS 2023 Spring Conference, pp. 60–61, April 2023.
  8. J. Ahn, E. Choi and D.U. Lee, "Application of routing problems to space exploration missions," 2023 AIAA SciTech Forum, January 2023.
  9. W. Chang and E. Choi, "Trade-off Study on Multi-UAV Autonomous Mission Planning Algorithms," KSAS 2022 Fall Conference, pp. 1736–1737, 2022.
  10. E. Choi and W. Chang, "Multi-Agent Decentralized Task Allocation Algorithms with Fuel Constraints," KSAS 2021 Fall Conference, pp. 432–433, 2021.

Media Articles

  1. E. Choi and K. Ho, "SpaceX aims to use rockets to quickly transport cargo across the Earth and into orbit – moves that would expand the global cargo system," The Conversation, 2026.

Theses

  • E. Choi, "Optimal Planetary Surface Routing Considering Synergy Value System and Heterogeneous Agents," Master's Thesis, Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, 2024.

Patents

  1. D. Han, W. Jang, E. Choi, "Method and apparatus for determining the path of an unmanned vehicle using a distributed network," KR Patent, 10-2946314, 2026.

Software & Tools

  1. T. Noro, M. Isaji, E. Choi, S. Han, and K. Ho, "PosbasedOOSnearGSO.jl," Georgia Tech Software Disclosure, Invention ID 2026-248, 2025.
  2. T. Noro, M. Isaji, E. Choi, S. Han, and K. Ho, "LowthrustSCP.jl," Georgia Tech Software Disclosure, Invention ID 2026-247, 2025.
  3. E. Choi, K. Ho, and Y. Shimane, "Continuous Location Routing Problem for Orbital Depot (CLRPOD) v1.0.0," Georgia Tech Software Disclosure, Invention ID 2026-018, 2025.
    [View on GitHub]

Professional & Research Experience

Georgia Institute of Technology Aug. 2024 – Present
  • Graduate Research Assistant, Daniel Guggenheim School of Aerospace Engineering.
Korea Advanced Institute of Science and Technology (KAIST) Aug. 2022 – Aug. 2024
  • Graduate Research Assistant, Department of Aerospace Engineering.
Agency for Defense Development (ADD) Jun. 2019 – May 2022
  • Researcher, Aerospace Technology Research Institute.

Selected Projects

  • Innovative Decision-Making Frameworks for Next-Generation Space Systems (Mitsubishi Electric Corporation, Georgia Tech)
  • ATLAS: Advancing Technologies for Logistics Architectures in Space (AFRL/AFOSR, Georgia Tech)
  • Space Logistics Model for Temporary Deployment of Earth Imaging Satellites (ThinkOrbital, Georgia Tech)

Contact Information

Email: ehchoi@gatech.edu

LinkedIn: linkedin.com/in/ehchoi

Google Scholar: Euihyeon Choi

Location: Atlanta, GA, USA

Download Full CV

You can download a complete and up-to-date copy of my Curriculum Vitae in PDF format below.

📄 Download CV (PDF)