{"693594":{"#nid":"693594","#data":{"type":"event","title":"PhD Proposal by Marilyn Braojos","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E:\u0026nbsp; \u0026nbsp; Resilient Navigation and Perception to Increase Autonomy in Space Systems\u003Cbr\u003E\u003Cstrong\u003EDate\u003C\/strong\u003E:\u0026nbsp; \u0026nbsp;Wednesday, October 28th, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime\u003C\/strong\u003E: \u0026nbsp;2PM - 3PM ET\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EVirtual Link\u003C\/strong\u003E: \u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/2205202324560830?p=ujaza5yWTRsOGWnxsv\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/2205202324560830?p=ujaza5yWTRsOGWnxsv\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EMarilyn Braojos\u003C\/p\u003E\u003Cp\u003ERobotics PhD Student\u003C\/p\u003E\u003Cp\u003ESchool of Aerospace Engineering\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee members\u003C\/strong\u003E\u003C\/p\u003E\u003Cul\u003E\u003Cli data-list-item-id=\u0022e524e160529c62cd309d25a8d18e2bc34\u0022\u003EDr. E. Glenn Lightsey (advisor), School of Aerospace Engineering, Georgia Institute of Technology\u003C\/li\u003E\u003Cli data-list-item-id=\u0022e8709cf1d2c6b5338de42e2e26ef8090d\u0022\u003EDr. Yashwanth Nakka,\u0026nbsp;School of Aerospace Engineering, Georgia Institute of Technology\u003C\/li\u003E\u003Cli data-list-item-id=\u0022ee224d791571f0656ce0ce2279c12513d\u0022\u003EDr. Sean Wilson, School of Electrical and Computer Engineering, Georgia Tech Research Institute\u003C\/li\u003E\u003Cli data-list-item-id=\u0022ef64ecc54f0ec3c92e4598045f6ce7d95\u0022\u003EDr. Julie Wertz, Jet Propulsion Laboratory\u003C\/li\u003E\u003Cli data-list-item-id=\u0022e8adcef7cd607922447b1a743fe66b070\u0022\u003EDr. Kar-Ming Cheung,\u0026nbsp;Jet Propulsion Laboratory\u003C\/li\u003E\u003C\/ul\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ESummary\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ESpacecraft rely on state estimation robust to dynamic environments for increased autonomy. This proposal presents predictive modeling frameworks that increase spacecraft awareness and resilience. The first aim of this work addresses navigation challenges from extended periods of radio communication outages. Global LSTM-based architectures were benchmarked with ARIMA architectures to model GPS satellites\u2019 clock bias for extended 6-hour horizons at \u0026lt; 2 ns accuracy. The second aim of this proposal transitions to mobile vehicle uncertainty awareness from proprioceptive sensor information. To mitigate the limitations of exteroceptive sensors, this aim demonstrates an uncertainty-aware terrain classification mechanism based on an evidential deep learning architecture. Extracting accurate uncertainty from out-of-distribution sensor data provides further insight into system faults and terrain hazards. The final aim of this proposed work integrates the uncertainty-aware mechanism into an adaptive extended Kalman filter to achieve real-time state estimation in the Husky A200. This capability will be demonstrated by dynamically scaling the EKF\u2019s measurement noise covariance matrix in ROS Gazebo as the mobile robot traverses pre-defined trajectories with varying friction characteristics to represent different terrain types. Together, these aims deliver a comprehensive framework capable of safe and reliable state estimation resilient to dynamic environments and unexpected sensor faults.\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EResilient Navigation and Perception to Increase Autonomy in Space Systems\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Resilient Navigation and Perception to Increase Autonomy in Space Systems"}],"uid":"27707","created_gmt":"2026-10-28 17:55:41","changed_gmt":"2026-10-28 17:56:15","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-10-28T14:00:00-04:00","event_time_end":"2026-10-28T15:00:00-04:00","event_time_end_last":"2026-10-28T15:00:00-04:00","gmt_time_start":"2026-10-28 18:00:00","gmt_time_end":"2026-10-28 19:00:00","gmt_time_end_last":"2026-10-28 19:00:00","rrule":null,"timezone":"America\/New_York"},"location":"TEAMS","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}