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 14 of 14 for “"GPS/INS"”.
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A Hardware Architecture for GPS/INS-Enabled Wireless Sensor Networks
… location of the nodes in such networks. Although GPS localization has consistent long-term accuracy, it is limited by the inherent dependency on a direct line of sight to 4 or more external satellites. The increasing demand for an embedded system providing reliable navigation solutions regardless …
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In-flight estimation of environmental and aerodynamic modeling errors for a GPS-INS guided artillery shell in a GPS-jamming environment
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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Airborne protected military satellite communications : analysis of open-loop pointing and closed-loop tracking with noisy platform attitude information
… aircraft disturbances and random errors from the GPS/INS. The rate of performance improvement as a function of the number of hops is independent of the antenna aperture size and the GPS/INS unit. Pointing performance relative to the HPBW is independent of the antenna aperture size and GPS/INS unit …
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Stereo Vision Based Aerial Mapping Using GPS and Inertial Sensors
… systems are capable of doing just that, the GPS/INS aided stereo vision system also has integrated 3-axis accelerometers, 3-axis gyros, 3-axis magnetometer, and GPS receiver allowing for the measurement of the system's position and orientation in global coordinates. This capability provides …
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Full season navigation and control of ultra-compact autonomous ag-bot in GPS denied environment
… only a 2-D Hokuyo UST-10LX LiDAR and an RTK GPS as the primary sensors for navigation. Its purpose is to ensure that the robot can navigate through rows of crops without damaging the plants in narrow row-based and high-leaf-cover semi-structured crop plantations, such as corn (Zea mays), …
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Optimal Kalman Filter Integration of a Global Positioning System Receiver and an LN-94 Inertial Navigation System
… of a Phase III Global Positioning System (GPS) five-channel receiver and an LN-94 Inertial Navigation System (INS). The GPS provides highly accurate position and velocity information in low dynamic environments. An INS provides position and velocity information with lower accuracy over long …
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Maritime Object Detection, Tracking, and Classification Using Lidar and Vision-Based Sensor Fusion
… through the integration of a high-fidelity GPS/INS system, 3D LiDAR sensors, and a pair of cameras. After rotating LiDAR returns into a global reference frame, they are reduced to a 3D occupancy grid. Objects are then extracted and classified with a Support Vector Machine (SVM) classifier. …
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Statistical methods for 2D-3D registration of optical and LIDAR images
… Using an initial registration comparable to GPS/INS accuracy, we demonstrate the utility of our algorithms with a collection of urban images. Our analysis begins with three basic methods for measuring mutual information. We demonstrate the utility of the mutual information measures with a …
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Neural Network Fusion of Multi-Modal Sensor Data For Autonomous Surface Vessels
… multi-modal sensing platform for ASVs utilizing GPS/INS, LiDAR, LWIR cameras, HDR camera, and high-resolution cameras. The sensing platform is designed to maximize the overlap of sensors for multi-modal research and provides accurate intrinsic and extrinsic calibration between each sensor. …
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A Localization Solution for an Autonomous Vehicle in an Urban Environment
… using simple dead reckoning or an off-the-shelf GPS with differential corrections. However, as the surroundings become more complex, so does the localization problem. The urban environment is a prime example of a situation in which a vehicle's surroundings complicate the problem of position …
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Distributed Sensing Testbed Development for Wavelet Based Global Map Estimation
… with a rugged suspension cushions onboard instruments from vibrations. The large battery capacity can sustain at least eight hours of hard use, including powering all onboard electronics. The MAGV is fitted with a high accuracy GPS/INS system for centimeter-accuracy localization and a …
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GNSS Signal Processing Techniques for Spoofing Resiliency
… which involves authenticating the civilian L1C GPS signal using a digital signature in the navigation message and punctures in the spreading code. This method can be used to distinguish authentic and spoofed signals, however, a delay between the time the signal is tracked by the receiver and the …
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Design and development of advanced control techniques for an unmanned ground vehicle
… technique based on the integration of GPS/INS for combat vehicles is developed. The developed algorithm is able to provide an accurate and reliable vehicle positioning information, even if the number of visible satellites is less than four, due to the harsh vehicle operation …
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Indoor Geo-location And Tracking Of Mobile Autonomous Robot
… the increase in urban-warfare robot tracking inside buildings and in cities form a very important application. The numerous applications range from munitions tracking to replacing soldiers for reconnaissance information. Fire fighters use robots for survey of the affected area. Tracking robots …