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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 5, Iss. 11 — Nov. 10, 2007
  • pp: 639–641

Modified maximum likelihood registration based on information fusion

Yongqing Qi, Zhongliang Jing, and Shiqiang Hu  »View Author Affiliations

Chinese Optics Letters, Vol. 5, Issue 11, pp. 639-641 (2007)

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The bias estimation of passive sensors is considered based on information fusion in multi-platform multi-sensor tracking system. The unobservable problem of bearing-only tracking in blind spot is analyzed. A modified maximum likelihood method, which uses the redundant information of multi-sensor system to calculate the target position, is investigated to estimate the biases. Monte Carlo simulation results show that the modified method eliminates the effect of unobservable problem in the blind spot and can estimate the biases more rapidly and accurately than maximum likelihood method. It is statistically efficient since the standard deviation of bias estimation errors meets the theoretical lower bounds.

© 2007 Chinese Optics Letters

OCIS Codes
(200.3050) Optics in computing : Information processing
(220.1140) Optical design and fabrication : Alignment
(350.2660) Other areas of optics : Fusion

Yongqing Qi, Zhongliang Jing, and Shiqiang Hu, "Modified maximum likelihood registration based on information fusion," Chin. Opt. Lett. 5, 639-641 (2007)

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