Avishai Weiss

Avishai Weiss
  • Biography

    Avishai's doctoral research was on spacecraft orbital and attitude control. Prior to the University of Michigan, he studied at Stanford University, where he received a B.S. in Electrical Engineering and an M.S. in Aeronautics and Astronautics. Avishai's interests are in constrained control, model predictive control, and time-varying systems.

  • Recent News & Events

    •  NEWS    MERL researchers presented 9 papers at the American Control Conference (ACC)
      Date: June 8, 2022 - June 10, 2022
      Where: Atlanta, GA
      MERL Contacts: Karl Berntorp; Scott A. Bortoff; Ankush Chakrabarty; Stefano Di Cairano; Christopher R. Laughman; Marcel Menner; Rien Quirynen; Abraham P. Vinod; Avishai Weiss
      Research Areas: Control, Machine Learning, Optimization
      Brief
      • At the American Control Conference in Atlanta, GA, MERL presented 9 papers on subjects including autonomous-vehicle decision making and motion planning, realtime Bayesian inference and learning, reference governors for hybrid systems, Bayesian optimization, and nonlinear control.
    •  
    •  NEWS    MERL work on 3D Printing in Orbit featured in IEEE Spectrum
      Date: June 3, 2022
      Where: IEEE Spectrum
      MERL Contacts: Avishai Weiss; William S. Yerazunis
      Research Areas: Applied Physics, Communications, Robotics
      Brief
      • MERL's research on on-orbit manufacturing was recently featured in an IEEE Spectrum article. The article, titled How Satellites Will 3D Print Their Own Antennas in Space gives an overview of MERL's efforts towards developing a system that construct spacecraft parts in their natural environment-- that is, in space. The technology, called OOM for On-Orbit Manufacturing, provides a way to manufacture not just antenna dishes, but general freeform sturctures on orbit and in a vacuum, using an solar-hardened resin based approach. This technology includes both a special high performance liquid resin, as well as a 3D freeform printer capable of building objects far larger than the as-launched satellite.

        An important aspect of the special resin is that all components have extremely low vapor pressures and do not boil away even in a vacuum. When exposed to solar ultraviolet, the resin hardens by polymerization crosslinking, forming a tough, rigid solid in a few seconds of exposure. No separate UV source is needed, making the entire process very energy efficient. Additionally, the crosslinking resin is heat resistant, and is unaffected to at least 400 degrees C. The 3D printer needed to print the resin is unlike common liquid-resin SLA printers- there is no vat of liquid resin, instead a shielded nozzle delivers the liquid resin directly to where the resin is needed. The result is the ability to construct large and very large structures, not just parabolic dishes, but also solar panel supports and structural trusswork, while in orbit. The system could even construct parts that were unanticipated during mission design and launch.

        MERL's On-Orbit Manufacturing Technology had previously been featured in a Mitsubishi Electric Corporation Press Release and was recently on display at a recent press exhibition in Tokyo, Japan.

        IEEE Spectrum is the flagship magazine and website of the IEEE, the world’s largest professional organization devoted to engineering and the applied sciences. IEEE Spectrum has a circulation of over 400,000 engineers worldwide, making it one of the leading science and engineering magazines.
    •  

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  • MERL Publications

    •  Elango, P., Di Cairano, S., Berntorp, K., Weiss, A., "Sequential linearization-based station keeping with optical navigation for NRHO", AAS/AIAA Astrodynamics Specialist Conference, September 2022.
      BibTeX TR2022-114 PDF
      • @inproceedings{Elango2022sep,
      • author = {Elango, Purnanand and Di Cairano, Stefano and Berntorp, Karl and Weiss, Avishai},
      • title = {Sequential linearization-based station keeping with optical navigation for NRHO},
      • booktitle = {AAS/AIAA Astrodynamics Specialist Conference},
      • year = 2022,
      • month = sep,
      • url = {https://www.merl.com/publications/TR2022-114}
      • }
    •  Yerazunis, W.S., Weiss, A., Radyjowski, P., Cottrell, R., "On-Orbit Fabrication of Spacecraft Structures by Direct Solar Photopolymerization", Solid Freeform Fabrication Symposium, July 2022.
      BibTeX TR2022-104 PDF
      • @inproceedings{Yerazunis2022jul,
      • author = {Yerazunis, William S. and Weiss, Avishai and Radyjowski, Patryk and Cottrell, Richard},
      • title = {On-Orbit Fabrication of Spacecraft Structures by Direct Solar Photopolymerization},
      • booktitle = {Solid Freeform Fabrication Symposium},
      • year = 2022,
      • month = jul,
      • url = {https://www.merl.com/publications/TR2022-104}
      • }
    •  Elango, P., Di Cairano, S., Kalabic, U., Weiss, A., "Local Eigenmotion Control for Near Rectilinear Halo Orbits", American Control Conference (ACC), June 2022.
      BibTeX TR2022-060 PDF
      • @inproceedings{Elango2022jun,
      • author = {Elango, Purnanand and Di Cairano, Stefano and Kalabic, Uros and Weiss, Avishai},
      • title = {Local Eigenmotion Control for Near Rectilinear Halo Orbits},
      • booktitle = {American Control Conference (ACC)},
      • year = 2022,
      • month = jun,
      • url = {https://www.merl.com/publications/TR2022-060}
      • }
    •  Yerazunis, W.S., Weiss, A., "UV In The Sky With Resin: A novel, on-orbit manufacturing technique", SatMagazine, April 2022.
      BibTeX SatMagazine
      • @article{Yerazunis2022apr,
      • author = {Yerazunis, William S. and Weiss, Avishai},
      • title = {UV In The Sky With Resin: A novel, on-orbit manufacturing technique},
      • journal = {SatMagazine},
      • year = 2022,
      • edition = {April 2022},
      • month = apr,
      • url = {http://www.satmagazine.com/story.php?number=774406935}
      • }
    •  Vinod, A.P., Weiss, A., Di Cairano, S., "Abort-safe spacecraft rendezvous under stochastic actuation and navigation uncertainty", IEEE Conference on Decision and Control (CDC), DOI: 10.1109/​CDC45484.2021.9683322, December 2021, pp. 6620-6625.
      BibTeX TR2021-148 PDF
      • @inproceedings{Vinod2021dec,
      • author = {Vinod, Abraham P. and Weiss, Avishai and Di Cairano, Stefano},
      • title = {Abort-safe spacecraft rendezvous under stochastic actuation and navigation uncertainty},
      • booktitle = {IEEE Conference on Decision and Control (CDC)},
      • year = 2021,
      • pages = {6620--6625},
      • month = dec,
      • doi = {10.1109/CDC45484.2021.9683322},
      • url = {https://www.merl.com/publications/TR2021-148}
      • }
    See All Publications for Avishai
  • Other Publications

    •  A. Weiss, M. Baldwin, C. Petersen, R. S. Erwin and I. Kolmanovsky, "Spacecraft Constrained Maneuver Planning for Moving Debris Avoidance Using Positively Invariant Constraint Admissible Sets", Proceedings of the American Control Conference, June 2013.
      BibTeX
      • @Inproceedings{weissDebris2013,
      • author = {Weiss, A. and Baldwin, M. and Petersen, C. and Erwin, R. S. and Kolmanovsky, I.},
      • title = {Spacecraft Constrained Maneuver Planning for Moving Debris Avoidance Using Positively Invariant Constraint Admissible Sets},
      • booktitle = {Proceedings of the American Control Conference},
      • year = 2013,
      • address = {Washington, DC},
      • month = jun
      • }
    •  Avishai Weiss, Ilya Kolmanovsky, Dennis S. Bernstein and Amit Sanyal, "Inertia-Free Spacecraft Attitude Control Using Reaction Wheels", Journal of Guidance, Control, and Dynamics, Vol. 36, No. 5, pp. 1425-1439, 2013.
      BibTeX
      • @Article{Weiss2013,
      • author = {Weiss, Avishai and Kolmanovsky, Ilya and Bernstein, Dennis S. and Sanyal, Amit},
      • title = {Inertia-Free Spacecraft Attitude Control Using Reaction Wheels},
      • journal = {Journal of Guidance, Control, and Dynamics},
      • year = 2013,
      • volume = 36,
      • number = 5,
      • pages = {1425--1439},
      • publisher = {American Institute of Aeronautics and Astronautics}
      • }
    •  Avishai Weiss, Ilya Kolmanovsky, Morgan Baldwin, R. Scott Erwin and Dennis S. Bernstein, "Forward-Integration Riccati-Based Feedback Control for Spacecraft Rendezvous Maneuvers on Elliptic Orbits", Proc. Conf. Dec. Contr, December 2012, pp. 1752 - 1757.
      BibTeX
      • @Inproceedings{forriccdc,
      • author = {Weiss, Avishai and Kolmanovsky, Ilya and Baldwin, Morgan and Erwin, R. Scott and Bernstein, Dennis S.},
      • title = {Forward-Integration Riccati-Based Feedback Control for Spacecraft Rendezvous Maneuvers on Elliptic Orbits},
      • booktitle = {Proc. Conf. Dec. Contr},
      • year = 2012,
      • pages = {1752 -- 1757},
      • address = {Maui, HI},
      • month = dec
      • }
    •  A. Weiss, G. Cruz, K. Agarwal, Y. Rahman, M. Medikeri, A. Xie, M. Camblor, I. Kolmanovsky and D. S. Bernstein, "Inertia-Free Attitude Control Laws Based on Rotation Matrices for Spacecraft with Torquers, Thrusters, and Wheels", Proc. Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation, and Spacecraft Control, October 2012, pp. 322-391.
      BibTeX
      • @Inproceedings{Weiss2012,
      • author = {Weiss, A. and Cruz, G. and Agarwal, K. and Rahman, Y. and Medikeri, M. and Xie, A. and Camblor, M. and Kolmanovsky, I. and Bernstein, D. S.},
      • title = {Inertia-Free Attitude Control Laws Based on Rotation Matrices for Spacecraft with Torquers, Thrusters, and Wheels},
      • booktitle = {Proc. Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation, and Spacecraft Control},
      • year = 2012,
      • pages = {322--391},
      • address = {Haifa, Israel},
      • month = oct
      • }
    •  A. Weiss, M. Baldwin, R. S. Erwin and I. Kolmanovsky, "Spacecraft Constrained Maneuver Planning using Positively Invariant Constraint Admissible Sets", Proc. Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation, and Spacecraft Control, October 2012.
      BibTeX
      • @Inproceedings{ref:debrisBarSym,
      • author = {Weiss, A. and Baldwin, M. and Erwin, R. S. and Kolmanovsky, I.},
      • title = {Spacecraft Constrained Maneuver Planning using Positively Invariant Constraint Admissible Sets},
      • booktitle = {Proc. Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation, and Spacecraft Control},
      • year = 2012,
      • address = {Haifa, Israel},
      • month = oct
      • }
    •  Avishai Weiss, Frederick Leve, Ilya Kolmanovsky and Moriba Jah, "Reaction Wheel Parameter Identification and Control through Receding Horizon-Based Null Motion Excitation", Proc. Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation, and Spacecraft Control, October 2012.
      BibTeX
      • @Inproceedings{weissreaction,
      • author = {Weiss, Avishai and Leve, Frederick and Kolmanovsky, Ilya and Jah, Moriba},
      • title = {Reaction Wheel Parameter Identification and Control through Receding Horizon-Based Null Motion Excitation},
      • booktitle = {Proc. Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation, and Spacecraft Control},
      • year = 2012,
      • address = {Haifa, Israel},
      • month = oct
      • }
    •  K. Agarwal, A. Weiss, I. Kolmanovsky and D. S. Bernstein, "Inertia-Free Spacecraft Attitude Control with Control-Moment-Gyro Actuation", Proc. AIAA Guid. Nav. Contr. Conf., August 2012, pp. AIAA-2012-5003-282.
      BibTeX
      • @Inproceedings{CMGGNC2012,
      • author = {Agarwal, K. and Weiss, A. and Kolmanovsky, I. and Bernstein, D. S.},
      • title = {Inertia-Free Spacecraft Attitude Control with Control-Moment-Gyro Actuation},
      • booktitle = {Proc. AIAA Guid. Nav. Contr. Conf.},
      • year = 2012,
      • pages = {AIAA--2012--5003--282},
      • address = {Minneapolis, MN},
      • month = aug,
      • note = {AIAA-2012-5003-282}
      • }
    •  A. Weiss, I. Kolmanovsky, M. Baldwin and R. S. Erwin, "Model Predictive Control of Three Dimensional Spacecraft Relative Motion", Proceedings of the American Control Conference, June 2012, pp. 173-178.
      BibTeX
      • @Inproceedings{weisserwin,
      • author = {Weiss, A. and Kolmanovsky, I. and Baldwin, M. and Erwin, R. S.},
      • title = {Model Predictive Control of Three Dimensional Spacecraft Relative Motion},
      • booktitle = {Proceedings of the American Control Conference},
      • year = 2012,
      • pages = {173--178},
      • address = {Montreal, Canada},
      • month = jun
      • }
    •  A. Weiss, I. Kolmanovsky and D. S. Bernstein, "Forward-Integration Riccati-Based Output-Feedback Control of Linear Time-Varying Systems", Proc. Amer. Conf. Contr, June 2012, pp. 6708-6714.
      BibTeX
      • @Inproceedings{weisskolmbern,
      • author = {Weiss, A. and Kolmanovsky, I. and Bernstein, D. S.},
      • title = {Forward-Integration Riccati-Based Output-Feedback Control of Linear Time-Varying Systems},
      • booktitle = {Proc. Amer. Conf. Contr},
      • year = 2012,
      • pages = {6708--6714},
      • address = {Montreal, Canada},
      • month = jun
      • }
    •  Avishai Weiss, Ilya Kolmanovsky and Dennis S. Bernstein, "Forward-Integration Riccati-Based Feedback Control of Magnetically Actuated Spacecraft", AIAA Guidance, Navigation, and Control Conference, 2012, pp. AIAA-2012-5042-137.
      BibTeX
      • @Inproceedings{firmag,
      • author = {Weiss, Avishai and Kolmanovsky, Ilya and Bernstein, Dennis S.},
      • title = {Forward-Integration Riccati-Based Feedback Control of Magnetically Actuated Spacecraft},
      • booktitle = {AIAA Guidance, Navigation, and Control Conference},
      • year = 2012,
      • pages = {AIAA--2012--5042--137}
      • }
    •  M. Baldwin, A. Weiss, I. Kolmanovsky and R. S. Erwin, "Spacecraft Debris Avoidance using Positively Invariant Constraint Admissible Sets", Proceedings of AAS Space Flight Mechanics Meeting, 2012, pp. Paper AAS 12-250.
      BibTeX
      • @Inproceedings{ref:baldwin,
      • author = {Baldwin, M. and Weiss, A. and Kolmanovsky, I. and Erwin, R. S.},
      • title = {Spacecraft Debris Avoidance using Positively Invariant Constraint Admissible Sets},
      • booktitle = {Proceedings of AAS Space Flight Mechanics Meeting},
      • year = 2012,
      • pages = {Paper AAS 12--250},
      • address = {Charleston, South Carolina}
      • }
    •  A. Weiss, I. Kolmanovsky and D. S. Bernstein, "Inertia-Free Attitude Control of Spacecraft with Unknown Time-Varying Mass Distribution", Proc. 62nd IAC, October 2011, pp. IAC-11-C1.5.9.
      BibTeX
      • @Inproceedings{AviTVinertiaIAC2011,
      • author = {Weiss, A. and Kolmanovsky, I. and Bernstein, D. S.},
      • title = {Inertia-Free Attitude Control of Spacecraft with Unknown Time-Varying Mass Distribution},
      • booktitle = {Proc. 62nd IAC},
      • year = 2011,
      • pages = {IAC--11--C1.5.9},
      • address = {Cape Town, South Africa},
      • month = oct,
      • note = {IAC-11-C1.5.9}
      • }
    •  Gerardo Cruz, Xuebo Yang, Avishai Weiss, Ilya Kolmanovsky and Dennis S. Bernstein, "Torque-saturated, inertia-free spacecraft attitude control", AIAA Guidance, Navigation, and Control Conference, 2011, pp. AIAA-2011-6507-816.
      BibTeX
      • @Inproceedings{cruz2011torque,
      • author = {Cruz, Gerardo and Yang, Xuebo and Weiss, Avishai and Kolmanovsky, Ilya and Bernstein, Dennis S.},
      • title = {Torque-saturated, inertia-free spacecraft attitude control},
      • booktitle = {AIAA Guidance, Navigation, and Control Conference},
      • year = 2011,
      • pages = {AIAA--2011--6507--816}
      • }
    •  Avishai Weiss, Ilya Kolmanovsky and Walter Merrill, "Incorporating Risk into Control Design for Emergency Operation of Turbo-Fan Engines", Proc. AIAA Infotech@Aerospace, 2011, pp. AIAA-2011-1591.
      BibTeX
      • @Inproceedings{weiss2011incorporating,
      • author = {Weiss, Avishai and Kolmanovsky, Ilya and Merrill, Walter},
      • title = {Incorporating Risk into Control Design for Emergency Operation of Turbo-Fan Engines},
      • booktitle = {Proc. AIAA Infotech@Aerospace},
      • year = 2011,
      • pages = {AIAA--2011--1591}
      • }
    •  A. Weiss, X. Yang, I. Kolmanovsky and D. S. Bernstein, "Inertia-Free Spacecraft Attitude Control with Reaction-Wheel Actuation", AIAA Guidance, Navigation, and Control Conference, 2010, pp. AIAA-2010-8297.
      BibTeX
      • @Inproceedings{weiss,
      • author = {Weiss, A. and Yang, X. and Kolmanovsky, I. and Bernstein, D. S.},
      • title = {Inertia-Free Spacecraft Attitude Control with Reaction-Wheel Actuation},
      • booktitle = {AIAA Guidance, Navigation, and Control Conference},
      • year = 2010,
      • pages = {AIAA--2010--8297}
      • }
  • Videos

  • MERL Issued Patents

    • Title: "Nonlinear Model Predictive Control of Coupled Celestial System"
      Inventors: Weiss, Avishai; Di Cairano, Stefano; Malladi, BharaniPrabha
      Patent No.: 11,292,618
      Issue Date: Apr 5, 2022
    • Title: "On-Orbit Additive Manufacturing of Parabolic Reflectors via Solar Photopolymerization"
      Inventors: Weiss, Avishai; Yerazunis, William S.; Cottrell, Richard
      Patent No.: 11,155,723
      Issue Date: Oct 26, 2021
    • Title: "System and Method for Controlling Lateral Motion of Vehicle"
      Inventors: Berntorp, Karl; Weiss, Avishai; Danielson, Claus; Di Cairano, Stefano
      Patent No.: 10,994,729
      Issue Date: May 4, 2021
    • Title: "System and Method for GNSS Ambiguity Resolution"
      Inventors: Berntorp, Karl; Weiss, Avishai; Di Cairano, Stefano
      Patent No.: 10,976,444
      Issue Date: Apr 13, 2021
    • Title: "MODEL PREDICTIVE CONTROL OF SPACECRAFT"
      Inventors: Weiss, Avishai; Zlotnik, David; Di Cairano, Stefano
      Patent No.: 10,967,991
      Issue Date: Apr 6, 2021
    • Title: "Model Predictive Control of Spacecraft"
      Inventors: Weiss, Avishai; Di Cairano, Stefano; Caverly, Ryan
      Patent No.: 10,934,025
      Issue Date: Mar 2, 2021
    • Title: "Systems and Methods for On-Orbit Fabrication of Structures by 3D Printing"
      Inventors: Yerazunis, William S.; Weiss, Avishai; Wang, Bingnan
      Patent No.: 10,906,290
      Issue Date: Feb 2, 2021
    • Title: "Loose Optical Fiber Tethering Of Multiple Satellites"
      Inventors: Parsons, Kieran; Weiss, Avishai; Orlik, Philip V.; Di Cairano, Stefano
      Patent No.: 10,892,826
      Issue Date: Jan 12, 2021
    • Title: "MODEL PREDICTIVE CONTROL OF SPACECRAFT"
      Inventors: Weiss, Avishai; Zlotnik, David; Di Cairano, Stefano
      Patent No.: 10,875,669
      Issue Date: Dec 29, 2020
    • Title: "Concurrent Station Keeping, Attitude Control, and Momentum Management of Spacecraft"
      Inventors: Weiss, Avishai; Di Cairano, Stefano; Walsh, Alex
      Patent No.: 10,180,686
      Issue Date: Jan 15, 2019
    • Title: "Methods and Systems for Path Planning Using a Network of Safe-Sets"
      Inventors: Danielson, Claus; Weiss, Avishai; Berntorp, Karl; Di Cairano, Stefano
      Patent No.: 10,012,988
      Issue Date: Jul 3, 2018
    • Title: "System and Method for Controlling Vehicle using Neural Network"
      Inventors: Berntorp, Karl; Liu, Ming-Yu; Weiss, Avishai
      Patent No.: 9,989,964
      Issue Date: Jun 5, 2018
    • Title: "Model Predictive Control with Uncertainties"
      Inventors: Di Cairano, Stefano; Weiss, Avishai
      Patent No.: 9,983,554
      Issue Date: May 29, 2018
    • Title: "Model Predictive Control of Spacecraft"
      Inventors: Weiss, Avishai; Di Cairano, Stefano; Kalabic, Uros
      Patent No.: 9,874,879
      Issue Date: Jan 23, 2018
    • Title: "Model Predictive Control of Spacecraft"
      Inventors: Weiss, Avishai; Di Cairano, Stefano; Kalabic, Uros
      Patent No.: 9,764,858
      Issue Date: Sep 19, 2017
    See All Patents for MERL