Latest Space News
Mon, 19 Apr 2021 00:07:51 +0000
Boeing said April 17 that the next test flight of its CST-100 Starliner commercial crew vehicle won’t take place until at least August, confirming a lengthy delay widely expected because of the schedule of other launches and International Space Station missions. SpaceNews
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Fri, 16 Apr 2021 22:35:16 +0000
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Fri, 16 Apr 2021 11:41:51 +0000
NASA managers approved plans to launch a SpaceX commercial crew mission to the International Space Station next week, pending the resolution of one minor issue with the Falcon 9 rocket. SpaceNews
Thu, 15 Apr 2021 22:51:10 +0000
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SpaceX has added more than $300 million to a fundraising round announced earlier this year to support continued work on its Starship launch system and Starlink satellite constellation. SpaceNews
Wed, 14 Apr 2021 22:42:11 +0000
The Space Development Agency is considering buying its next 150 satellites from three different vendors, SpaceNews
Wed, 14 Apr 2021 21:15:56 +0000
The Space Development Agency is less worried about missile strikes than it is about cyber attacks and intrusions into the supply chain.   SpaceNews
Wed, 14 Apr 2021 17:57:57 +0000
Blue Origin completed another test flight of its New Shepard vehicle April 14, putting the company on the verge of finally flying people. SpaceNews
Wed, 14 Apr 2021 14:15:25 +0000
Astranis, a startup developing small geostationary satellites, has raised $250 million in a funding round that values the company at $1.4 billion. SpaceNews
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Canadian satellite operator Telesat plans to raise $500 million with a bond to help fund its $5 billion Lightspeed broadband constellation. SpaceNews
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  • CV: GNC Engineer, Researcher

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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
     Location:<withheld>
    Contact information
     Email:<withheld>
     Phone:<withheld>
     Mobile:<withheld>
    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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