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  1. article

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      Holder, K., Schumacher, S., Friedrich, M., Till, M., Stetter, R., Fichter, W., & Rudolph, S. (2021). Digital Development Process for the Drive System of a Balanced Two-Wheel Scooter. Vehicles, 3(1), 33--60. https://doi.org/10.3390/vehicles3010003
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      Bergmann, D. P., Denzel, J., Pfeifle, O., Notter, S., Fichter, W., & Strohmayer, A. (2021). In-Flight Lift and Drag Estimation of an Unmanned Propeller-Driven Aircraft. Aerospace, 8(2), Article 2. https://doi.org/10.3390/aerospace8020043
    3. 224.
      Stephan, J., Pfeifle, O., Notter, S., Pinchetti, F., & Fichter, W. (2020). Precise Tracking of Extended Three-Dimensional Dubins Paths for Fixed-Wing Aircraft. Journal of Guidance, Control, and Dynamics, 43(12), 2399–2405. https://doi.org/doi/abs/10.2514/1.G005240
    4. 223.
      Rath, T., & Fichter, W. (2020). Flight Control Design for the Systematic Improvement of Ride Qualities. Journal of the American Helicopter Society. https://doi.org/10.4050/JAHS.66.022003
    5. 222.
      Notter, S., Groß, P., Schrapel, P., & Fichter, W. (2020). Multiple Thermal Updraft Estimation and Observability Analysis. Journal of Guidance, Control, and Dynamics, 43(3), 490–503. https://doi.org/10.2514/1.G004205
    6. 221.
      King, F. A., Steinwandel, A., & Fichter, W. (2020). Generalization of Active In-Flight Tracking Control to the N-Bladed Helicopter Rotor. Journal of Guidance, Control, and Dynamics, 43(7), 1344–1351. https://doi.org/10.2514/1.g004087
    7. 220.
      Geshnizjani, R., Kornienko, A., Ziegler, T., Löhr, J., & Fichter, W. (2020). Torque Optimal Steering of Control Moment Gyroscopes for Agile Spacecraft. Journal of Guidance, Control, and Dynamics, 1–12. https://doi.org/10.2514/1.g005118
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      Steinwandel, A., & Fichter, W. (2019). Linear Analysis of Vibration Reduction Using an Active N-Bladed Helicopter Rotor. Journal of Guidance, Control, and Dynamics, 42(3), 553–569. https://doi.org/10.2514/1.g003512
    9. 218.
      Schmitt, L., & Fichter, W. (2019). Globally Valid Posterior Cramér-Rao Bound for Three-Dimensional Bearings-Only Filtering. IEEE Transactions on Aerospace and Electronic Systems, 55(4), 2036–2044. https://doi.org/10.1109/TAES.2018.2881352
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      Joos, A., & Fichter, W. (2019). Nonlinear Model Predictive Control Parameters and Path Geometry. Journal of Guidance, Control, and Dynamics, 42(1), 175–180. https://doi.org/10.2514/1.g003655
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      Stephan, J., Schmitt, L., & Fichter, W. (2018). Linear Parameter-Varying Control for Quadrotors in Case of Complete Actuator Loss. Journal of Guidance, Control, and Dynamics, 41(10), 2232–2246. https://doi.org/10.2514/1.G003441
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      Schleicher, A., Ziegler, T., Schubert, R., Brandt, N., Bergner, P., Johann, U., Fichter, W., & Grzymisch, J. (2018). In-orbit performance of the LISA Pathfinder drag-free and attitude control system. CEAS Space Journal, 10, 471–485. https://doi.org/10.1007/s12567-018-0204-x
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      Pinchetti, F., Joos, A., & Fichter, W. (2018). Efficient Continuous Curvature Path Generation with Pseudo-Parameterized Algebraic Splines. CEAS Aeronautical Journal, 9(3), 557–570. https://doi.org/10.1007/s13272-018-0306-3
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      Stephan, J., & Fichter, W. (2017). Fast Exact Redistributed Pseudoinverse Method for Linear Actuation Systems. IEEE Transactions on Control Systems Technology, 27(1), 451–458. https://doi.org/10.1109/TCST.2017.2765622
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      Schmitt, L., & Fichter, W. (2017). Cramer-Rao Lower Bound for State-Constrained Nonlinear Filtering. IEEE Signal Processing Letters, 24(12), 1882–1885. https://doi.org/10.1109/LSP.2017.2764540
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      Schmitt, L., & Fichter, W. (2017). Cramér-Rao Lower Bound for State-Constrained Nonlinear Filtering. IEEE Signal Processing Letters, 24(12), Article 12. https://doi.org/10.1109/LSP.2017.2764540
    17. 210.
      Trittler, M., Rothermel, T., & Fichter, W. (2016). Autopilot for Landing Small Fixed-Wing Unmanned Aerial Vehicles with Optical Sensors. Journal of Guidance, Control, and Dynamics, 39(9), 2011–2021. https://doi.org/10.2514/1.G000261
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      Seiferth, C., Joos, A., Frangenberg, M., & Fichter, W. (2016). Predictive Motion Planning with Pipelined Feature-Based Obstacle Avoidance. Journal of Guidance, Control and Dynamics, 39(4), 970–978. https://doi.org/10.2514/1.G001134
    19. 208.
      Schmitt, L., & Fichter, W. (2016). Continuous Singularity Free Approach to the Three-Dimensional Bearings-Only Tracking Problem. Journal of Guidance, Control, and Dynamics, 39(12), 2673–2682. https://doi.org/10.2514/1.G000362
    20. 207.
      Joos, A., Seiferth, C., Schmitt, L., & Fichter, W. (2016). Parameters for Nonlinear Model Predictive Control in Unmanned Aerial Vehicle Path-Planning Applications. Journal of Guidance, Control, and Dynamics, 40(2), 481–489. https://doi.org/10.2514/1.G000311
    21. 206.
      Armano, M., Audley, H., Auger, G., Baird, J. T., Bassan, M., Binetruy, P., Born, M., Bortoluzzi, D., Brandt, N., Caleno, M., Carbone, L., Cavalleri, A., Cesarini, A., Ciani, G., Congedo, G., Cruise, A. M., Danzmann, K., de Deus Silva, M., De Rosa, R., … Zweifel, P. (2016). Sub-Femto-g Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results. Phys. Rev. Lett., 116(23), 231101. https://doi.org/10.1103/PhysRevLett.116.231101
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      Weimer, F., Frangenberg, M., & Fichter, W. (2015). Pipelined Particle Filter with Nonobservability Measure for Attitude and Velocity Estimation. Journal of Guidance, Control, and Dynamics, 38(3), 506–518. https://doi.org/10.2514/1.G000238
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      Schmitt, L., & Fichter, W. (2015). Observability Criteria and Null-Measurement Kalman Filter for Vision-Aided Inertial Navigation. Journal of Guidance, Control, and Dynamics, 39(4), Article 4. https://doi.org/10.2514/1.G001146
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      Grzymisch, J., & Fichter, W. (2015). Optimal Rendezvous Guidance with Enhanced Bearings-Only Observability. Journal of Guidance, Control, and Dynamics, 38(6), 1131–1139. https://doi.org/10.2514/1.G000822
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      Grzymisch, J., & Fichter, W. (2015). Nonlinear pseudo-measurement filtering for in-orbit bearings-only navigation. IEEE Transactions on Aerospace and Electronic Systems, 51(4), 2747–2759. https://doi.org/10.1109/TAES.2015.130823
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      Ziegler, T., Bergner, P., Hechenblaikner, G., Brandt, N., & Fichter, W. (2014). Modeling and Performance of Contact-Free Discharge Systems for Space Inertial Sensors. IEEE Trans. Aerospace and Electronic Systems, 50(2), 1493–1510. https://doi.org/10.1109/TAES.2014.120661
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      Wildmann, N., Hofsäß, M., Weimer, F., Joos, A., & Bange, J. (2014). MASC - a small Remotely Piloted Aircraft (RPA) for wind energy research. Advances in Science and Research, 11(1), 55–61. https://doi.org/10.5194/asr-11-55-2014
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      Schmitt, L., & Fichter, W. (2014). A Collision Avoidance Framework for Small Fixed-Wing Unmanned Aerial Vehicles. Journal of Guidance, Control, and Dynamics, 37(4), Article 4. https://doi.org/10.2514/1.G000226
    29. 198.
      Maurice, J.-B., King, F. A., Fichter, W., Rabourdin, A., & Konstanzer, P. K. (2014). Helicopter Rotor In-Plane Stability Enhancement Using Trailing-Edge Flaps. Journal of Guidance, Control, and Dynamics, 36(5), 1477–1489. https://doi.org/10.2514/1.57323
    30. 197.
      Maurice, J.-B., King, F. A., & Fichter, W. (2014). Derivation and Validation of a Helicopter Rotor Model with Trailing Edge Flaps. Journal of Guidance, Control, and Dynamics, 36(5), 1375–1387. https://doi.org/10.2514/1.59102
    31. 196.
      King, F. A., Maurice, J.-B., Fichter, W., Dieterich, O., & Konstanzer, P. (2014). In-Flight Rotorblade Tracking Control for Helicopters Using Active Trailing-Edge Flaps. Journal of Guidance, Control, and Dynamics, 37(2), 633–643. https://doi.org/doi: 10.2514/1.59475
    32. 195.
      Grzymisch, J., & Fichter, W. (2014). Observability Criteria and Unobservable Maneuvers for In-Orbit Bearings-Only Navigation. Journal of Guidance, Control, and Dynamics, 37(4), 1250–1259. https://doi.org/10.2514/1.62476
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      Grzymisch, J., & Fichter, W. (2014). Analytic Optimal Observability Maneuvers for In-Orbit Bearings-Only Rendezvous. Journal of Guidance, Control and Dynamics., 37(5), 1658–1664. https://doi.org/10.2514/1.G000612
    34. 193.
      Gerardi, D., Allen, G., Conklin, J. W., Sun, K.-X., DeBra, D., Buchman, S., Gath, P., Fichter, W., Byer, R. L., & Johann, U. (2014). Invited Article: Advanced drag-free concepts for future space-based interferometers: acceleration noise performance. Review of Scientific Instruments, 85(1), 011301--. https://doi.org/10.1063/1.4862199
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      Ott, T., Fichter, W., Bennani, S., & Winkler, S. (2013). Precision pointing H∞ control design for absolute, window-, and stability-time errors. CEAS Space Journal, 4(1), 13--30. https://doi.org/10.1007/s12567-012-0028-z
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      Grynagier, A., Ziegler, T., & Fichter, W. (2013). Identification of Dynamic Parameters for a One-Axis Drag-Free Gradiometer. IEEE Transactions on Aerospace and Electronic Systems, 49, 341–355. https://doi.org/10.1109/TAES.2013.6404107
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      Saage, R., Ross, R., Fichter, W., & Schleicher, A. (2012). Closed-Loop Specifications for Spacecraft Control Under Micropropulsion Constraints. Journal of Guidance, Control, and Dynamics, 35(5), 1676–1681. https://doi.org/doi: 10.2514/1.55550
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      Maurice, J.-B., Farolfi, R., Saupe, F., King, F. A., & Fichter, W. (2012). Robust Stability Analysis of a Linear Time-Periodic Active Helicopter Rotor. Journal of Guidance, Control, and Dynamics, 35(5), 1625–1636. https://doi.org/10.2514/1.54232
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      Antonucci, F., Armano, M., Audley, H., Auger, G., Benedetti, M., Binetruy, P., Bogenstahl, J., Bortoluzzi, D., Bosetti, P., Brandt, N., & others. (2012). The lisa pathfinder mission. Classical and Quantum Gravity, 29(12), 124014.
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      Haala, N., Cramer, M., Weimer, F., & Trittler, M. (2011). PERFORMANCE TEST ON UAV-BASED PHOTOGRAMMETRIC DATA COLLECTION. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVIII-1-C22, 7–12. https://doi.org/10.5194/isprsarchives-XXXVIII-1-C22-7-2011
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      Audley, H., Danzmann, K., Heinzel, G., Monsky, A., Nofrarias, M., Steier, F., Gerardi, D., Gerndt, R., Hechenblaikner, G., Johann, U., & others. (2011). The LISA Pathfinder interferometry hardware and system testing. Classical and Quantum Gravity, 28(9), 094003.
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      Antonucci, F., Armano, M., Audley, H., Auger, G., Benedetti, M., Binetruy, P., Boatella, C., Bogenstahl, J., Bortoluzzi, D., Bosetti, P., & others. (2011). From laboratory experiments to LISA Pathfinder: achieving LISA geodesic motion. Classical and Quantum Gravity, 28(9), 094002.
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      Antonucci, F., Armano, M., Audley, H., Auger, G., Benedetti, M., Binetruy, P., Boatella, C., Bogenstahl, J., Bortoluzzi, D., Bosetti, P., & others. (2011). LISA Pathfinder: mission and status. Classical and Quantum Gravity, 28(9), 094001.
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      Antonucci, F., Armano, M., Audley, H., Auger, G., Benedetti, M., Binetruy, P., Boatella, C., Bogenstahl, J., Bortoluzzi, D., Bosetti, P., & others. (2011). LISA Pathfinder data analysis. Classical and Quantum Gravity, 28(9), 094006.
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      Ziegler, T., & Fichter, W. (2010). Identification Algorithms for Micro-Propulsion System Parameters Using Drag-Free Test Masses. Space Science Reviews, 151(1), 49--60. https://doi.org/10.1007/s11214-009-9593-7
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      Grynagier, A., Fichter, W., & Vitale, S. (2010). Parabolic Drag-Free Flight, Actuation with Kicks, Spectral Analysis with Gaps. Space Science Reviews, 151(1), 183--196. https://doi.org/10.1007/s11214-009-9598-2
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      Monsky, A., Hewitson, M., Ferraioli, L., Wanner, G., Nofrarias, M., Hueller, M., Diepholz, I., Grynagier, A., Armano, M., Benedetti, M., & others. (2009). The first mock data challenge for LISA Pathfinder. Classical and Quantum Gravity, 26(9), 094004.
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      Hewitson, M., Armano, M., Benedetti, M., Bogenstahl, J., Bortoluzzi, D., Bosetti, P., Brandt, N., Cavalleri, A., Ciani, G., Cristofolini, I., & others. (2009). Data analysis for the LISA Technology Package. Classical and Quantum Gravity, 26(9), 094003.
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      Grynagier, A., Fichter, W., & Vitale, S. (2009). The Drift Mode for LISA Pathfinder: Implementation Solutions for a Robust Algorithm. Classical and Quantum Gravity, 26(9), Article 9.
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      Armano, M., Benedetti, M., Bogenstahl, J., Bortoluzzi, D., Bosetti, P., Brandt, N., Cavalleri, A., Ciani, G., Cristofolini, I., Cruise, A., & others. (2009). LISA Pathfinder: the experiment and the route to LISA. Classical and Quantum Gravity, 26(9), 094001.
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      Fichter, W., Schleicher, A., & Vitale, S. (2008). Drag-Free Control Design with Cubic Test Masses. Lasers, Clocks and Drag-Free Control: Exploration of Relativistic Gravity in Space, 361--378. https://doi.org/10.1007/978-3-540-34377-6_17
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      Fichter, W., Gath, P., Vitale, S., & Bortoluzzi, D. (2005). LISA Pathfinder drag-free control and system implications. Classical and Quantum Gravity, 22(10), S139.
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      Grimm, W., van der Meulen, J. G., & Roenneke, A. J. (2003). An Optimal Update Scheme for Drag Reference Profiles in an Entry Guidance. Journal of Guidance, Control, and Dynamics, 26(5), 695–701. https://doi.org/10.2514/2.5123
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      Mannchen, T., Bates, D. G., & Postlethwaite, I. (2002). Modeling and Computing Worst-Case Uncertainty Combinations for Flight Control Systems Analysis. Journal of Guidance, Control, and Dynamics, 25(6), 1029--1039. https://doi.org/10.2514/2.5007
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      Mannchen, T., & Well, K. H. (2002). $\mu$-Analysis of Stability Margin Criteria. Advanced Techniques for Clearance of Flight Control Laws, 285--311. https://doi.org/10.1007/3-540-45864-6_17
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      Grimm, W., & Markl, A. (1997). Adjoint Estimation from a Direct Multiple Shooting Method. Journal of Optimization Theory and Applications, 92(2), 263--283. https://doi.org/10.1023/A:1022650928786
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      Roenneke, A. J., & Markl, A. (1993). Reentry Control to a Drag-vs-Energy Profile. Journal of Guidance, Control and Dynamics, 17(5), 916–920. https://doi.org/10.2514/3.21290
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      Welsch, M., & Fichter, W. (2021). Ground-Based Turn Coordination for VTOL Vehicles with Wind Compensation. AIAA Scitech 2021 Forum. AIAA Scitech 2021 Forum, Virtual. https://doi.org/10.2514/6.2021-0255
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      Notter, S., Schimpf, F., & Fichter, W. (2021). Hierarchical Reinforcement Learning Approach Towards Autonomous Cross-Country Soaring. Proceedings of the AIAA Scitech 2021 Forum. https://doi.org/10.2514/6.2021-2010
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      Özkurt, S., Rath, T., Fichter, W., Dieterich, O., Priems, M., Nooij, S. A. E., & Bülthoff, H. H. (2020). From Helicopter Vibrations to Passenger Perceptions: A Closer Look on Standards. Proceedings of the 76th Annual Forum.
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      Welsch, M., & Fichter, W. (2020). Control of Large Multicopters with Rate-Limited Electric Motors. Proceedings of AIAA Scitech 2020 Forum. AIAA Scitech 2020 Forum, Orlando, FL. https://doi.org/10.2514/6.2020-1832
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      Stephan, J., & Fichter, W. (2020). Active Battery Charge Drift Stabilization for Redundant Multirotors. Proceedings of the AIAA Scitech 2020 Forum. https://doi.org/10.2514/6.2020-1833
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      Stephan, J., Notter, S., Pfeifle, O., Pinchetti, F., & Fichter, W. (2020). Spline Trajectory Planning and Guidance for Fixed-Wing Drones. Proceedings of the AIAA Scitech 2020 Forum. https://doi.org/10.2514/6.2020-0372
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      Richter, T., Rothaupt, B., Steinwandel, A., Fichter, W., & Grebing, B. (2020). Stability Augmentation System for Coaxial Ultralight Helicopters. Proceedings of the VFS International 76th Annual Forum.
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