Journal Articles

N. R. Rypkema, A Preliminary Study on the Feasibility of Through-Ice Acoustic Communications on Europa. Pre-Print, 2023.

N. R. Rypkema, H. Schmidt, E. M. Fischell, Synchronous-Clock Range-Angle Relative Acoustic Navigation: A Unified Approach to Multi-AUV Localization, Command, Control and Coordination. Field Robotics, 2, 774–806, 2022.

N. R. Rypkema, E. M. Fischell, H. Schmidt, Memory-Efficient Approximate Three-Dimensional (3D) Beamforming. The Journal of the Acoustical Society of America (JASA), vol. 148, iss. 6, pp. 3467-3480, 2020.

E. M. Fischell*, N. R. Rypkema*, H. Schmidt, Relative Autonomy and Navigation for Command and Control of Low-Cost Autonomous Underwater Vehicles. IEEE Robotics and Automation Letters (RA-L), 2019. *Equal First Author; Accepted for Presentation at ICRA 2019.

Conference Proceedings

N. R. Rypkema, S. Randeni, M. Sacarny, M. Benjamin, M. Triantafyllou, Perseus AUV: Towards Linear Convoying of Agile A-sized AUVs Through Acoustic Track-and-Trail. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2023. Acceptance Rate: 43.3%

D. Fourie, N. R. Rypkema, P. V. Teixeira, S. Claassens, E. Fischell, J. Leonard, Towards Real-Time Non-Gaussian SLAM for Underdetermined Navigation. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2020. Acceptance Rate: 47.0%

N. R. Rypkema, H. Schmidt, Passive Inverted Ultra-Short Baseline (piUSBL) Localization: An Experimental Evaluation of Accuracy. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2019. Acceptance Rate: 44.4%

M. Y. Cheung, D. Fourie, N. R. Rypkema, P. V. Teixeira, H. Schmidt, J. Leonard, Non-Gaussian SLAM utilizing Synthetic Aperture Sonar. IEEE International Conference on Robotics and Automation (ICRA), 2019. Acceptance Rate: 45.4%

S. A. T. Randeni P., N. R. Rypkema, E. M. Fischell, A. L. Forrest, M. R. Benjamin, H. Schmidt, Implementation of a Hydrodynamic Model-Based Navigation System for a Low-Cost AUV Fleet. IEEE OES Autonomous Underwater Vehicle Symposium (AUV), 2018.

N. R. Rypkema, E. M. Fischell, H. Schmidt, Closed-Loop Single-Beacon Passive Acoustic Navigation for Low-Cost Autonomous Underwater Vehicles. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2018. Acceptance Rate: 46.7% Winner of IROS ICROS Best Application Paper Award

N. R. Rypkema, E. M. Fischell, H. Schmidt, One-Way Travel-Time Inverted Ultra-Short Baseline Localization for Low-Cost Autonomous Underwater Vehicles. IEEE International Conference on Robotics and Automation (ICRA), 2017. Acceptance Rate: 41.0%

N. R. Rypkema, H. Schmidt, Formation Control of a Drifting Group of Marine Robotic Vehicles. Distributed Autonomous Robotic Systems (DARS), 2016, (Pre-Print). Acceptance Rate (Oral): 39.2%

O. A. Viquez, E. M. Fischell, N. R. Rypkema, H. Schmidt, Design of a General Autonomy Payload for Low-Cost AUV R&D. IEEE/OES Autonomous Underwater Vehicles (AUV), 2016.

A. Anderson, E. Fischell, T. Howe, T. Miller, A. Parrales-Salinas, N. Rypkema, D. Barrett, M. R. Benjamin, A. Brennen, M. DeFillipo, J. J. Leonard, L. Paull, H. Schmidt, N. Wang, A. Yaari, An Overview of MIT-Olin's Approach in the AUVSI RobotX Competition. Field and Service Robotics (FSR) - Results of the 10 International Conference,  61-80, 2015. Acceptance Rate (Oral): 45.0%

T. S. Bird, N. Rypkema, K. W. Smart, Antenna Impedance Matching for Maximum Power Transfer in Wireless Sensor Networks. IEEE SENSORS, 2009.

Meeting and Workshop Talks

N. R. Rypkema, E. M. Fischell, H. Schmidt, Relative Navigation for Command and Control of Multiple Low-Cost Autonomous Underwater Vehicles. Acoustical Society of America 176th Meeting, 2018.

N. R. Rypkema, E. M. Fischell, H. Schmidt, Passive Acoustic Navigation and Command of a Low-Cost Autonomous Underwater Vehicle. IEEE Underwater Acoustic Signal Processing Workshop, 2017.

N. R. Rypkema, E. M. Fischell, H. Schmidt, Autonomous Underwater Vehicle Self-Localization Using a Tetrahedral Array and Passive Acoustics​. Acoustical Society of America Acoustics 2017, 2017.

E. M. Fischell, N. R. Rypkema, H. Schmidt, Relative Acoustic Navigation for Sensing with Low-Cost AUVs. ICRA 2016 Workshop on Marine Robot Localization and Navigation, 2016.

N. R. Rypkema, H. Schmidt, Distributed Autonomy and Formation Control of a Drifting Swarm of Autonomous Underwater Vehicles. MOOS Development and Applications Working Group (MOOS-DAWG), 2015.

Theses

N. R. Rypkema, Underwater & Out of Sight: Towards Ubiquity in Underwater Robotics. Ph.D. Thesis, MIT-WHOI Joint Program, 2019. (Defense Slides)

N. R. Rypkema, Distributed Autonomy and Formation Control of a Drifting Swarm of Autonomous Underwater Vehicles. S.M. Thesis, MIT-WHOI Joint Program, 2015.

Technical Manuscripts

N. Rypkema, A Straightforward Derivation of the Matched Filter. Technical Manuscript, 2019.

N. Rypkema, Investigation of Wireless Power Transfer. Technical Report, CSIRO ICT Centre, 2009.