CV: GNC Engineer, Researcher


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Personal information
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Candidate Profile
 Date Submitted:07-05-2013
 Last Modified:21-11-2019 (09:53)
Job information
 Current job:GNC Engineer, Researcher
 Employment Term:Temp/Contract
 Job location:Own country
 Date available:within a month
 Industry:Civil Agencies/International Organizations, Satellite Manufacturers and Subcontractors, Satellite Operators, Launch Systems, Consulting/Engineering Services, Space Tourism
 KeywordsNavigation Systems, Kalman Filtering, Inertial Systems, GNSS, Launcher Navigation, GNC Systems, AOCS, Control Theory, Flight Dynamics, Attitude Dynamics, Modelling and Simulation
CV

Professional Experience ----------------------------

[Jun 2014 - Dec 2018]  Guidance, Navigation and Control (GNC) Researcher

Institute of Space Systems, German Aerospace Center (DLR), Bremen, Germany

    PhD research: (please see PhD Candidate experience under Education);

    ReFEx: navigation design and analysis for horizontal-landing reusable flight experiment [1];

    ALINA (PTS GmbH): design and algorithmic implementation of navigation system for lunar lander;

    Callisto: preliminary navigation performance analysis for reusable rocket stage experiment;

    EAGLE: support to navigation and control system development for experimental hovering vehicle [2];

    ATON: field testing and performance evaluation of optical/inertial navigation fusion [5];

    Eu:CROPIS: internal alignment estimation of tetrahedral redundant gyroscope flight unit;

    SHEFEX-2: sounding rocket GNSS/inertial flight data analysis and post-processing;

    FOSTERNAV: post-processing of car-borne inertial/GNSS/Lidar navigation data.

 

[Mar 2012 - Feb 2014]  Guidance, Navigation and Control (GNC) Engineer - Trainee

TEC-ECN, ESTEC, European Space Agency (ESA), Noordwijk, The Netherlands

    ESA Clean Space Initiative: support to GNC Phase 0 design for active debris removal missions (ESA Concurrent Design Facility studies) [8];

    HiNav: testing of hybrid GNSS/inertial navigation model under Vega launch scenario;

    Proba-3: support to pre-Phase C GNC system simulator and documentation review;

    Lisa Pathfinder: modelling of AOCS thruster set; support to GNC system simulator review;

    North Star: study of stability and controllability of a small launcher;

    Low-Thrust: study of attitude guidance for optimal low-thrust (electric) orbit transfer;

    ExoMars: validation of dynamics models within GNC system simulator;

    Astos: launch vehicle modelling and trajectory optimisation;

    SHARK: re-entry capsule trajectory filtering and reconstruction.

 

Education --------------------------------------

[2014 - present]  PhD Candidate

Optimization and Optimal Control Group (Fachbereich 3), University of Bremen, Bremen, Germany

Design and real-time software implementation of on-board, low-cost, robust and fault-tolerant hybrid GNSS/inertial navigation system for launch vehicle applications (e.g., [3, 4, 6]);

ESA–DLR–UniBremen project, under ESA Network Partnership Initiative (NPI) program.

 

[2009 - 2011]  Double Master of Science in Aerospace Engineering, Avionics, Control and Simulation Track

Delft University of Technology, Delft, The Netherlands, and Instituto Superior Técnico (IST), Lisbon, Portugal

Major topics: Control and Estimation Theory, Flight Dynamics, Navigation (e.g., [10]), Flight Control, Spacecraft Attitude Control, Optimization, Signal Processing and Avionics;

Thesis on robust and adaptive nonlinear attitude control of a spacecraft [7, 9];

Graduated with Distinction (Cum Laude) from TU Delft, and distinguished as the Best Aerospace Engineering Graduate of 2011 by IST Lisbon.

 

[2006 - 2009]  Bachelor in Aerospace Engineering

Instituto Superior Técnico, Lisbon, Portugal

 

Courses and Activities ------------------------------------------

[2017 - present]  Journal Reviewer

CEAS Space Journal, Springer, and Advances in Space Research, Elsevier

 

[2013]  Course on Robust Control for Space Systems

ESTEC, European Space Agency, Noordwijk, The Netherlands

Given by A. K. Packard, P. J. Seiler, and G. J. Balas

 

[2013] Course on Spacecraft Rendezvous and Docking

ESTEC, European Space Agency, Noordwijk, The Netherlands

Given by Wigbert Fehse, author of Automated Rendezvous and Docking of Spacecraft.

 

[2012] Course on Spacecraft Systems Engineering

ESTEC, European Space Agency, Noordwijk, The Netherlands

3-day course organized and given by the University of Southampton.

 

[2008 - 2009] Leader of the Guidance, Navigation and Control Team

Swarm Mission, Student Space Exploration and Technology Initiative (SSETI), European Space Agency

Phase-A and early Phase-B development. Subsystem requirements derivation and architecture de nition. Sensor and actuator selection. Perliminary design and simulation of the Control Law and Navigation algorithm. Technical documentation production and regular inter-team information exchange.

 

[2007] Human Space-Flight and Exploration Summer Course

University of Umea, Umea and Kiruna, Sweden

Covered the topics: History of Space Exploration, Space Environment, Space Transportation, Life Support Systems and Astronaut Training. Final exam and team project. Course completed with Distinction.

 

Publications -----------------------------------------------

[1] M. Sagliano, G. F. Trigo, and R. Schwarz. “Preliminary Guidance and Navigation Design for the Upcoming DLR Reusability Flight Experiment (ReFEx)”. Submitted. 2019.

[2] M. Dumke, G. F. Trigo, M. Sagliano, P. Saranrittichai, and S. Theil. “Design, Development, and Flight Testing of the Vertical Take-Off and Landing GNC Testbed EAGLE”. In: CEAS Space Journal (2019). doi: 10.1007/s12567-019-00269-5.

[3] G. F. Trigo, S. Theil, J. Vandersteen, S. Bennani, and C. Roux. “Robust Tightly-coupled Hybrid Navigation for Space Transportation”. In: AIAA Journal of Spacecraft and Rockets 56.2 (2018), pp. 596–609. doi: 10.2514/1.A34232.

[4] G. F. Trigo and S. Theil. “Architectural Elements of Hybrid Navigation Systems for Future Space Transportation”. In: CEAS Space Journal 10.2 (2018), pp. 238–250. doi: 10.1007/s12567-017-0187-z.

[5] G. F. Trigo, B. Maass, H. Krüger, and S. Theil. “Hybrid Optical Navigation by Crater Detection for Lunar Pin-point Landing: Trajectories from Helicopter Flight Tests”. In: CEAS Space Journal 10.4 (2018), pp. 567–581. doi: 10.1007/s12567-017-0188-y.

[6] G. F. Trigo and S. Theil. “Advances in Aerospace Guidance, Navigation and Control”. In: ed. by B. Dolega, R. Glebocki, D. Kordos, and M. Zugaj. Springer, 2018. Chap. Improved Hybrid Navigation for Space Transportation, pp. 295–315. doi: 10.1007/978-3-319-65283-2_16.

[7] G. F. Trigo and Q. P. Chu. “Advances in Aerospace Guidance, Navigation and Control”. In: ed. by B. Dolega, R. Glebocki, D. Kordos, and M. Zugaj. Springer, 2018. Chap. Immersion and Invariance Adaptive Backstepping Spacecraft Attitude Control with Modified Rodrigues Parameters, pp. 295–315. doi: 10.1007/978-3-319-65283-2_38.

[8] S. Erb, A. Rinalducci, and G. F. Trigo. “SPADES: Assessment of Solid Propellant Deorbit Module”. In: Concurrent Design Facility. Noordwijk, The Netherlands: European Space Agency, 2013. Chap. Attitude Control System.

[9] G. F. Trigo. “Robust and Adaptive Nonlinear Attitude Control of a Spacecraft”. MA thesis. Delft, The Netherlands: Delft University of Technology, and Lisbon, Portugal: Instituto Superior Técnico, 2011.

[10] G. F. Trigo, D. Donas-Boto, C. Silva, and J. E. Sanguino. “Vehicle Heading Estimation Using a Two Low-Cost GPS Receiver Configuration”. In: IEEE 73rd VTC. Budapest, Hungary, 2011.

+  8 international conference papers 

 

Language Skills -----------------------------------------------

Portuguese: Mother Tongue

English: Proficient

Italian: Intermediate

German: Basic (∼B1, certified A2)

 

Programming and Software Skills ---------------------------

Programming: C, C ++ (98–11), MATLAB (m-code), Octave, Latex, Visual Basic

Software: MATLAB, Simulink, GNU Octave, Astos, Visual Studio, QNX-Momentics (Eclipse), Git, SVN, MSOffice

Industry Simulink-based Simulators: VESAT, EAGLE, HiNav FES, LisaPath nder GNC FES, GNCDE


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