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Optical Engineering

Target position extraction based on instantaneous frequency estimation in a fixed-reticle seeker
Author(s): Sung-Hyun Han; HyunKi Hong; SurngGabb Jahng; DongSun Seo; Jong Soo Choi
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Paper Abstract

To extract a precise target position in the presence of infrared countermeasures and significant noise, we propose a new algorithm based on the instantaneous frequency (IF) estimation of the sinusoidal frequency modulation (SFM) signals for a fixed-reticle seeker. To estimate the IF for target position extraction, the proposed algorithm maps the multicomponent sFm signal into the time-frequency plane to examine its time-frequency distribution, and then applies the Hough transform. The simulation results show that the proposed algorithm can extract the target position efficiently in the presence of flare countermeasures and noise.

Paper Details

Date Published: 1 September 2000
PDF: 6 pages
Opt. Eng. 39(9) doi: 10.1117/1.1287390
Published in: Optical Engineering Volume 39, Issue 9
Show Author Affiliations
Sung-Hyun Han, Chung-Ang Univ. (South Korea)
HyunKi Hong, Chung-Ang Univ. (South Korea)
SurngGabb Jahng, Chung-Ang Univ. (South Korea)
DongSun Seo, Myong-Ji Univ. (South Korea)
Jong Soo Choi, Chung-Ang Univ. (South Korea)

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