Application of Airborne Scanner - Aerial Navigation

Application of Airborne Scanner - Aerial Navigation

Bibliographic Details
Main Author: Campbell, Jacob L.
Language:English
Published: Ohio University / OhioLINK 2006
Subjects:
Terrain Referenced Navigation
Terrain Navigation
LIDAR
LADAR
Airborne Laser Scanner
Landing Approach System
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1147294952
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou11472949522021-08-03T05:43:40Z Application of Airborne Scanner - Aerial Navigation Campbell, Jacob L. Terrain Referenced Navigation Terrain Navigation LIDAR LADAR Airborne Laser Scanner Landing Approach System <p>This dissertation explores the use of an Airborne Laser Scanner (ALS) for use in aircraft Terrain-Referenced Navigation (TRN). Position estimation techniques developed in this dissertation enable the use of large sets of high accuracy ALS measurements to solve for position in real-time. The explored techniques were then used to design, implement, and - for the first time ever - fly a real-time ALS-based TERRain Aided Inertial Navigator (TERRAIN) precision approach system. During the flight tests, the system provided meter-level horizontal and vertical positioning accuracies in real-time.</p> <p>The ALS-based TRN techniques discussed in the dissertation are constrained to the information found in the terrain shape domain. The data acquisition, pre-processing, and position estimation techniques of ALS TRN vary significantly from traditional radar altimeter-based TRN primarily due to differences in the measurement mechanism used in both TRN systems. First, traditional radar altimeter-based TRN senses the terrain contours traversed in the along-track direction, whereas ALS-based TRN makes measurements in the along-track and in the cross-track directions. The second difference is that the ALS laser’s milli-radian beamwidth has sufficient resolution to identify not only the ground, but also objects on the ground such as buildings. A radar altimeter with a beamwidth of several degrees can not observe the same level of detail. These differences increase the spectral content of the ground measurement data in the ALS-based system thus permitting high-accuracy position estimates.</p> <p>The described ALS TRN navigation techniques include methods to estimate the position based on the best match between ALS data and a high resolution/accuracy terrain database. Finally, the dissertation explores the certification path for an ALS-based landing system.</p> 2006-09-12 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1147294952 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1147294952 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Terrain Referenced Navigation
Terrain Navigation
LIDAR
LADAR
Airborne Laser Scanner
Landing Approach System
spellingShingle Terrain Referenced Navigation
Terrain Navigation
LIDAR
LADAR
Airborne Laser Scanner
Landing Approach System
Campbell, Jacob L.
Application of Airborne Scanner - Aerial Navigation
author Campbell, Jacob L.
author_facet Campbell, Jacob L.
author_sort Campbell, Jacob L.
title Application of Airborne Scanner - Aerial Navigation
title_short Application of Airborne Scanner - Aerial Navigation
title_full Application of Airborne Scanner - Aerial Navigation
title_fullStr Application of Airborne Scanner - Aerial Navigation
title_full_unstemmed Application of Airborne Scanner - Aerial Navigation
title_sort application of airborne scanner - aerial navigation
publisher Ohio University / OhioLINK
publishDate 2006
url http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1147294952
work_keys_str_mv AT campbelljacobl applicationofairbornescanneraerialnavigation
_version_ 1719424182615277568

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