Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 121 for “"autonomous navigation"”.
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Autonomous Navigation without HD Prior Maps
Most fielded autonomous driving systems currently rely on High Definition (HD) prior maps both to localize, and to retrieve detailed geometric and semantic information about the environment. This information is necessary to enable safe operation of many downstream driving components including, …
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Autonomous navigation in unknown environments using machine learning
… thesis, we explore the problem of high-speed autonomous navigation for a dynamic mobile robot in unknown environments. Our objective is to navigate from start to goal in minimum time, given no prior knowledge of the map, nor any explicit knowledge of the environment distribution. Faced with …
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Autonomous navigation with mobile robot using ultrasonic rangefinders
In this thesis, I designed and implemented an autonomous navigation system for a four-wheeled mobile robot with ultrasonic sonar sensors and a National Instruments myRIO real-time controller. LabVIEW code was developed to control the motors with PWM signals based on sensor feedback. A low-pass …
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Algorithms for robust autonomous navigation in human environments
Today's robots are designed for humans, but are rarely deployed among humans. This thesis addresses problems of perception, planning, and safety that arise when deploying a mobile robot in human environments. A first key challenge is that of quickly navigating to a human-specified goal - one with …
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Improving Autonomous Navigation and Estimation in Novel Environments
Efficient autonomous navigation in novel environments is crucial to enable embodied agents to reach more sophisticated levels of autonomy. We are interested in improving autonomous navigation and estimation in unknown environments of vehicles carrying lightweight electro-optical sensor payloads. …
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Energy efficient accelerators for autonomous navigation in miniaturized robots
… is considered the computation bottleneck in autonomous navigation systems because of the high dimensionality of the problem. For example, multi-scale object detection is desired for robustness, which requires significant data expansion. Additionally, a 3D map size grows overtime while the …
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Autonomous navigation of distributed spacecraft using intersatellite laser communications
Autonomous navigation refers to satellites performing on-board, real-time navigation without external input. As satellite systems evolve into more distributed architectures, autonomous navigation can help mitigate challenges in ground operations, such as determining and disseminating orbit …
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MapLite : autonomous navigation in rural environments without detailed prior maps
Most autonomous vehicle systems currently rely on high-definition prior maps in order to localize and navigate in their environment. In this work, we present MapLite: a one-click autonomous navigation system capable of piloting a vehicle to an arbitrary desired destination point given only a sparse …
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A systems architecture framework towards hardware selection for autonomous navigation
The inclusion of autonomous vehicles into our transportation networks requires methods for evaluation and certification of systems on the vehicle. Adding sensors or computing capabilities to the vehicle might improve performance for specific tasks, or resilience, but can also be accompanied with an …
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Machine Learning for Perception and Autonomous Navigation of Service Mobile Robots
L'abstract è presente nell'allegato / the abstract is in the attachment
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Autonomous Navigation for Unmanned Aerial Systems - Visual Perception and Motion Planning
L'abstract è presente nell'allegato / the abstract is in the attachment
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Efficient computing for autonomous navigation using algorithm-and-hardware co-design
Autonomous navigation algorithms are the backbone of many robotic systems, such as self-driving cars and drones. However, state-of-the-art autonomous navigation algorithms are computationally expensive, requiring powerful CPUs and GPUs to enable them to run in real time. As a result, it is …
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A Comparison of Autonomous Navigation Methods for Earth-Moon Halo Orbits
… Therefore, a reliable method of performing autonomous navigation in lunar space is required to facilitate this new interest. Many methods of performing this autonomous navigation have been devised, but little work has been done to compare these methods to one another using standardized, …
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Autonomous Navigation of a Ground Vehicle to Optimize Communication Link Quality
… foundation is developed that allows an autonomous ground vehicle to serve as an adaptive communication node in a larger network. The vehicle may perform other functions, but its primary role is to constantly reposition itself to maintain optimal link quality for network communication. …
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Sensors for autonomous navigation and hazard avoidance on a planetary micro-rover
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Linear covariance analysis trade study of autonomous navigation schemes for cislunar missions
… (DSN) antennas which provided ground based navigation state updates to spacecraft of the Apollo era are aging and overtaxed. The over-reliance on this ground based system for high accuracy navigation of deep space vehicles presents a distinct challenge. One viable solution to this dilemma is …
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Autonomous Navigation, Perception and Probabilistic Fire Location for an Intelligent Firefighting Robot
… in developing firefighting robots that autonomously locate a fire inside of a structure that is not in the direct robot field of view. The commonly used sensors for robots cannot properly function in fire smoke-filled environments where high temperature and zero visibility are present. …
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Development and Implementation of a Self-Building Global Map for Autonomous Navigation
Students at Virginia Tech have been developing autonomous vehicles for the past five years. The purpose of these vehicles has been primarily for entry in the annual international Intelligent Ground Vehicle Competition (IGVC), however further applications for autonomous vehicles range from …
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Autonomous Navigation and Simultaneous 3D Mapping with a UGV in an Open-Ended Environment
… this research is the development of an advanced autonomous navigation system that integrates Detectron2's Panoptic FPN model with multi-sensor fusion and simultaneous 3D mapping capabilities for the Clearpath Husky A200 unmanned ground vehicle (UGV) operating in complex outdoor environments. By …
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