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Investigation of Dual Airborne Laser Scanners for Detection and State Estimation of Mobile Obstacles in an Aircraft External Hazard Monitor

Smearcheck, Mark A.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1212687342

Abstract Details

2008, Master of Science (MS), Ohio University, Electrical Engineering (Engineering and Technology).
To ensure aircraft safety during precision approach procedures detailed information pertaining to hazards located on the runway and surroundings area must be known. In order to identify possible safety threats, aircraft could be equipped with sensors capable of detecting all significant hazards in a variety of weather conditions and landing scenarios. An analysis of potential hazards and sensor capabilities serves as the basis of this research. One such hazard monitoring implementation is proposed that makes use of two airborne laser scanners, GPS, and an inertial measurement unit. The goal of this implementation is to detect a ground vehicle driving on the runway during aircraft precision approach. Capabilities of the system include accurate geo-referencing of laser footprints, hazard detection and classification, and hazard state estimation. These goals are accomplished with digital surface modeling using sensor and navigation information, a measurement classification method using a windowed weighted least squares algorithm, and unsupervised clustering. Experimental flight-testing has been performed to collect aircraft navigation data, laser measurements of a vehicle in motion on the runway, and vehicle position truth data. Results indicate geo-referencing accuracy of approximately 2 m in most cases, along with successful hazard classification, and hazard velocity estimates accurate to within 2.8 m/s.
Maarten Uijt de Haag, PhD (Advisor)
Frank van Graas, PhD (Committee Member)
Jeff Dill, PhD (Committee Member)
124 p.
Electrical Engineering
Hazard Detection; Aircraft; Airborne Laser Scanner; LIDAR; GPS; IMU;

Recommended Citations

Citations

  • Smearcheck, M. A. (2008). Investigation of Dual Airborne Laser Scanners for Detection and State Estimation of Mobile Obstacles in an Aircraft External Hazard Monitor [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1212687342

    APA Style (7th edition)

  • Smearcheck, Mark. Investigation of Dual Airborne Laser Scanners for Detection and State Estimation of Mobile Obstacles in an Aircraft External Hazard Monitor. 2008. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1212687342.

    MLA Style (8th edition)

  • Smearcheck, Mark. "Investigation of Dual Airborne Laser Scanners for Detection and State Estimation of Mobile Obstacles in an Aircraft External Hazard Monitor." Master's thesis, Ohio University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1212687342

    Chicago Manual of Style (17th edition)

ohiou1212687342
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© 2008, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.