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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 12 — Apr. 20, 2010
  • pp: 2262–2270

Experimental demonstration of a stripmap holographic aperture ladar system

Jason W. Stafford, Bradley D. Duncan, and Matthew P. Dierking  »View Author Affiliations

Applied Optics, Vol. 49, Issue 12, pp. 2262-2270 (2010)

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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.

© 2010 Optical Society of America

OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.3640) Remote sensing and sensors : Lidar
(280.6730) Remote sensing and sensors : Synthetic aperture radar
(090.1995) Holography : Digital holography
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Remote Sensing and Sensors

Original Manuscript: January 7, 2010
Revised Manuscript: March 5, 2010
Manuscript Accepted: March 13, 2010
Published: April 13, 2010

Jason W. Stafford, Bradley D. Duncan, and Matthew P. Dierking, "Experimental demonstration of a stripmap holographic aperture ladar system," Appl. Opt. 49, 2262-2270 (2010)

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