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Application of airborne laser scanne...

Campbell, Jacob L.

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Application of airborne laser scanner - aerial navigation.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Application of airborne laser scanner - aerial navigation./
Author:	Campbell, Jacob L.
Description:	134 p.
Notes:	Source: Dissertation Abstracts International, Volume: 67-07, Section: B, page: 3654.
Contained By:	Dissertation Abstracts International67-07B.
Subject:	Geodesy. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3226706
ISBN:	9780542778285

Application of airborne laser scanner - aerial navigation.
Campbell, Jacob L.

Application of airborne laser scanner - aerial navigation. - 134 p.

Source: Dissertation Abstracts International, Volume: 67-07, Section: B, page: 3654.

Thesis (Ph.D.)--Ohio University, 2006.

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.

ISBN: 9780542778285Subjects--Topical Terms:

550741
Geodesy.

Application of airborne laser scanner - aerial navigation.
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245 1 0 $a Application of airborne laser scanner - aerial navigation.
300 $a 134 p.
500 $a Source: Dissertation Abstracts International, Volume: 67-07, Section: B, page: 3654.
500 $a Advisers: Maarten Uijt de Haag; Frank van Graas.
502 $a Thesis (Ph.D.)--Ohio University, 2006.
520 $a 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.
520 $a 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.
520 $a 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.
590 $a School code: 0167.
650 4 $a Geodesy. $3 550741
650 4 $a Engineering, Aerospace. $3 1018395
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790 1 0 $a van Graas, Frank, $e advisor
790 $a 0167
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3226706