OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 34 — Dec. 1, 2010
  • pp: H20–H26

Varied threshold with laser flight time in scannerless range-gated ladar

Long Wu, Yuan Zhao, Liping Liu, Yong Zhang, and Jie Wu  »View Author Affiliations


Applied Optics, Vol. 49, Issue 34, pp. H20-H26 (2010)
http://dx.doi.org/10.1364/AO.49.000H20


View Full Text Article

Enhanced HTML    Acrobat PDF (979 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We present a method based on maximum-likelihood estimation to calculate the threshold of the number of converted photoelectrons according to Poisson and Gaussian statistics. The calculations for detection and false-alarm probabilities are given including a proposal of error probability. An efficient approach of setting threshold according to laser flight time is discussed as the laser power decreases in propagation. Comparison of the fixed threshold and the varied threshold in Poisson and Gaussian statistics is provided. The varied threshold approach tends to keep the error probability at the lowest level. This varied threshold approach is found to have a similar effect on ranging accuracy as a threshold-fixed approach.

© 2010 Optical Society of America

OCIS Codes
(110.6880) Imaging systems : Three-dimensional image acquisition
(150.6910) Machine vision : Three-dimensional sensing
(280.3400) Remote sensing and sensors : Laser range finder

ToC Category:
SIGNAL RECOVERY AND COMPUTATIONAL SENSING AND IMAGING

History
Original Manuscript: April 29, 2010
Revised Manuscript: August 26, 2010
Manuscript Accepted: August 29, 2010
Published: September 22, 2010

Citation
Long Wu, Yuan Zhao, Liping Liu, Yong Zhang, and Jie Wu, "Varied threshold with laser flight time in scannerless range-gated ladar," Appl. Opt. 49, H20-H26 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-34-H20

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. Figure files 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