Document Type
Conference Paper
Publication Date
4-2016
Publication Source
Proceedings of SPIE: Signal Processing, Sensor/Information Fusion, and Target Recognition XXV
Abstract
A sector-based angular scanning system intended to identify and spatially locate relatively small objects scattered over a large terrain is described in this paper. The system is modeled as a planar surface on the horizontal (XY) plane, with an acousto-optic Bragg cell on board an unmanned aerial vehicle (UAV) operating in the XZ plane.
The Bragg cell is excited by a chirped RF signal with a designed frequency ramp. As the scanning beam reflects off the horizontal surface, a detector placed strategically at a suitable altitude (in the analysis shown to be on board the UAV itself) picks up the reflected wave and thereafter evaluates the refractive index of the material at the location using the Fresnel reflection coefficient.
For large area coverage, the UAV makes alternate 180-degree turns at the end of each row-scan, thereby after several row scans, a practical surface area is covered. The usefulness and limitations of this scanning method are discussed.
Inclusive pages
98421C-1 to 98421C-12
ISBN/ISSN
0277-786X
Document Version
Published Version
Copyright
Copyright © 2016, Society of Photo-optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited.
Publisher
Society of Photo-optical Instrumentation Engineers
Place of Publication
Baltimore, MD
Volume
9842
Peer Reviewed
yes
eCommons Citation
Chatterjee, Monish Ranjan and Bugoffa, Salaheddeen G., "Large-area Object Search and Recovery using Sector-based Aerial Acousto-optic Scanning and Reflection Sensing" (2016). Electrical and Computer Engineering Faculty Publications. 357.
https://ecommons.udayton.edu/ece_fac_pub/357
Included in
Computer Engineering Commons, Electrical and Electronics Commons, Electromagnetics and Photonics Commons, Optics Commons, Other Electrical and Computer Engineering Commons, Systems and Communications Commons
Comments
This document is provided for download in compliance with the publisher's policy on self-archiving. Permission documentation is on file.
DOI: http://dx.doi.org/10.1117/12.2229024