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Optical Engineering

Novel adaptive digital signal processing algorithm for a stationary reticle seeker
Author(s): JeongSu Oh; KyoungSoo Doo; SurngGabb Jahng; DongSun Seo; Jong Soo Choi
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Paper Abstract

Conventional stationary reticle seeker uses an analog signal processing technology to extract a target position in the field of view. The analog technology is optimized for only frequency modulation signals, which makes it difficult to use various and adaptive signal processing, and causes the performance limit of the conventional technology. We propose a novel adaptive digital signal processing algorithm to overcome the performance limit. The proposed algorithm classifies the modulation signals into the FM and FM/AM signals and applies a different signal processing algorithm, which is optimized for the modulation characteristics of each signal. The algorithm also employs an adaptive clipping level to minimize the noise effect. Our simulation results show that the proposed algorithm is superior to the conventional one in terms of the linearity of the static gain curve, tracking performance, and robustness against noise.

Paper Details

Date Published: 1 October 2000
PDF: 7 pages
Opt. Eng. 39(10) doi: 10.1117/1.1290581
Published in: Optical Engineering Volume 39, Issue 10
Show Author Affiliations
JeongSu Oh, Chung Ang Univ. (South Korea)
KyoungSoo Doo, 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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