대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2001년도 제14회 신호처리 합동 학술대회 논문집
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- Pages.95-98
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- 2001
Self-tuning 전처리필터를 이용한 적응 라인 인핸서
Adaptive Line Enhancer with Self-tuning Prefilter
- Park, Young-Seok (Communication & Signal Processing La., Division of Electronic and Computer Engineering Pohang University of Science and Technology) ;
- Shin, Hyun-Chool (Communication & Signal Processing La., Division of Electronic and Computer Engineering Pohang University of Science and Technology) ;
- Song, Woo-Jin (Communication & Signal Processing La., Division of Electronic and Computer Engineering Pohang University of Science and Technology)
- 발행 : 2001.09.01
초록
The adaptive line enhancer (ALE) is widely used for enhancing narrowband signals corrupted by broadband noise. In this paper, we propose novel ALE methods to improve the enhancing capability. The proposed methods are motivated by the fact that the output of the ALE is a fine estimate of the desired narrowband signal with the broadband noise component suppressed. The proposed methods preprocess the input signal using ALE filter to regenerate a finer input signal. Thus the proposed ALE is driven by the input signal with higher signal-to-noise ratio (SNR). The analysis and simulation results are presented to demonstrate that the proposed ALE has better performance than conventional ALE´s.
키워드