OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 1 — Jan. 1, 2014
  • pp: 44–50

Impact of a distance estimation error inducing a visualized zone gap on the target illuminance in range-gated active imaging

Alexis Matwyschuk  »View Author Affiliations


Applied Optics, Vol. 53, Issue 1, pp. 44-50 (2014)
http://dx.doi.org/10.1364/AO.53.000044


View Full Text Article

Enhanced HTML    Acrobat PDF (921 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Some stand-alone airborne systems of target reconnaissance such as a missile seeker head use range-gated laser active imaging to visualize a target in the scene. To center the visualized zone on the target, it is important to know the distance between the active imaging system and the target. However, as this exact distance is not known before the detection of the target, it can be only estimated. This estimated distance can be erroneous (max500m) with some technological drifts (gyrometric drift, accelerometric drift, missile position error, etc.). To be able to evaluate the impact of a distance estimation error on target illuminance in active imaging, the expressions of the illuminance attenuation ratio according to the decentered target position with regard to the visualized zone were determined. These different equations will be used to determine, in future stand-alone reconnaissance systems, the target signal-to-noise ratio as a function of the localization error. Generally speaking, two modes of visualization were used: first by using a fixed width of the visualized zone, and second by increasing the width of the visualized zone as a function of the distance. The defined different expressions allowed us to study the illuminance behavior of the target with regard to the value of the gap (difference between the estimated distance and the real distance) for each mode of visualization. The results showed that from a target distance of about 1 km, the visualization mode with variable zone width allowed us to decrease the target illuminance less during a gap caused by an estimation error of the target distance.

© 2013 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(120.1880) Instrumentation, measurement, and metrology : Detection
(100.4999) Image processing : Pattern recognition, target tracking
(010.7295) Atmospheric and oceanic optics : Visibility and imaging

ToC Category:
Imaging Systems

History
Original Manuscript: October 22, 2013
Revised Manuscript: November 29, 2013
Manuscript Accepted: December 2, 2013
Published: December 23, 2013

Virtual Issues
Vol. 9, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Alexis Matwyschuk, "Impact of a distance estimation error inducing a visualized zone gap on the target illuminance in range-gated active imaging," Appl. Opt. 53, 44-50 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-1-44


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. E. Repasi, P. Lutzmann, O. Steinvall, M. Elmqvist, B. Göhler, and G. Anstett, “Advanced short-wavelength infrared range-gated imaging for ground applications in monostatic and bistatic configurations,” Appl. Opt. 48, 5956–5969 (2009). [CrossRef]
  2. G. R. Fournier, D. Bonnier, J. L. Forand, and P. W. Pace, “Range-gated underwater laser imaging-system,” Opt. Eng. 32, 2185–2190 (1993). [CrossRef]
  3. D. Bonnier and V. Larochelle, “A range-gated active imaging system for search and rescue, and surveillance operations,” in Proc. SPIE 2744, 134–145 (1996). [CrossRef]
  4. H. Steingold and R. E. Strauch, “Backscatter effects in active night vision systems,” Appl. Opt. 8, 147–154 (1969). [CrossRef]
  5. P. Andersson, “Long-range three-dimensional imaging using range-gated laser radar images,” Opt. Eng. 45, 034301 (2006). [CrossRef]
  6. D. Monnin, A. Schneider, F. Christnacher, and Y. Lutz, “A 3D outdoor scene scanner based on a night-vision range-gated active imaging system,” in 3rd IEEE International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT’06) (2006), pp. 939–945.
  7. M. Laurenzis, F. Christnacher, N. Metzger, E. Bacher, and I. Zielenski, “Three-dimensional range-gated imaging at infrared wavelengths with super-resolution depth mapping,” Proc. SPIE 7298, 729833 (2009). [CrossRef]
  8. L. F. Gillespie, “Apparent illumination as a function of range in gated, laser night-viewing systems,” J. Opt. Soc. Am. 56, 883–887 (1966). [CrossRef]
  9. O. Steinvall, H. Olsson, G. Bolander, C. Carlsson, and D. Letalick, “Gated viewing for target detection and target recognition,” Proc. SPIE 3707, 432–448 (1999).
  10. R. L. Espinola, E. L. Jacobs, C. E. Halford, R. Vollmerhausen, and D. H. Tofsted, “Modeling the target acquisition performance of active imaging systems,” Opt. Express 15, 3816–3832 (2007). [CrossRef]
  11. G. M. Siouris, Missile Guidance and Control Systems (Springer, 2004).
  12. G. C. Holst, Electro-Optical Imaging System Performance (SPIE, 1995).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited