Experimental Demonstration of a Stripmap Holographic Aperture Ladar System
Document Type
Article
Publication Date
2010
Publication Source
Applied Optics
Abstract
By synthesizing large effective apertures through the translation of a smaller imaging sensor and the subsequent proper phasing and correlation of detected signals in postprocessing, holographic aperture ladar (HAL) systems seek to increase the resolution of remotely imaged targets. The stripmap HAL process was demonstrated in the laboratory, for the first time to our knowledge. Our results show that the stripmap HAL transformation can precisely account for off-axis transmitter induced phase migrations. This in turn allows multiple pupil plane field segments, sequentially collected across a synthetic aperture, to be coherently mosaiced together. As a direct consequence, we have been able to confirm the capability of the HAL method to potentially provide substantial increases in longitudinal cross-range resolution. The measurement and sampling of complex pupil plane field segments, as well as target related issues arising from short laboratory ranges, have also been addressed.
Inclusive pages
2262-2270
ISBN/ISSN
1559-128X
Copyright
Copyright © 2010, Optical Society of America
Publisher
Optical Society of America
Volume
49
Issue
12
Peer Reviewed
yes
eCommons Citation
Stafford, Jason W.; Duncan, Bradley D.; and Dierking, Matthew P., "Experimental Demonstration of a Stripmap Holographic Aperture Ladar System" (2010). Electro-Optics and Photonics Faculty Publications. 33.
https://ecommons.udayton.edu/eop_fac_pub/33
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