OSA's Digital Library

Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 22, Iss. 3 — Mar. 1, 2005
  • pp: 529–538

Amplitude-based height-reconstruction techniques for synthetic aperture ladar systems

Curtis W. Chen and Scott Hensley  »View Author Affiliations


JOSA A, Vol. 22, Issue 3, pp. 529-538 (2005)
http://dx.doi.org/10.1364/JOSAA.22.000529


View Full Text Article

Acrobat PDF (712 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We examine the performance of amplitude-based height-estimation techniques for use with airborne synthetic aperture ladar (SAL) sensors in generating three-dimensional reconstructions of ground targets. Such techniques lend themselves to implementation more readily than phase-based techniques and are also more tolerant to phase instabilities that might be associated with SAL systems. For pairwise amplitude-comparison monopulse processing, we present analyses of the expected height sensitivity and bias of SAL systems in terms of the system parameters. We verify this analysis with simulations, and we also provide an overview of other SAL phenomena that affect height-estimation accuracy. We then propose an array-based joint-processing approach that can be applied instead of pairwise monopulse processing. We show that the joint-processing approach represents the maximum-likelihood estimator for obtaining the target height, and we demonstrate that the proposed approach significantly reduces bias-induced errors.

© 2005 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(120.2830) Instrumentation, measurement, and metrology : Height measurements
(280.3640) Remote sensing and sensors : Lidar

Citation
Curtis W. Chen and Scott Hensley, "Amplitude-based height-reconstruction techniques for synthetic aperture ladar systems," J. Opt. Soc. Am. A 22, 529-538 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-3-529

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited