• Title/Summary/Keyword: BOO

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Implementation of Active Noise Canceller via Filtered-X LMS Algorithm (Filtered-X LMS 알고리즘을 사용한 적응 잡음 제거기의 구현)

  • Ahn, Doo-Soo;Kim, Jong-Boo;Lee, Tae-Pyo;Choi, Seung-Wook
    • Proceedings of the KIEE Conference
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    • 1996.07b
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    • pp.1066-1068
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    • 1996

  • This paper concerns about the active noise canceller via filtered-X LMS algorithm. There are various kinds of algorithms to implement a active noise canceller. Traditional LMS algorithms are not enough to implement a sharp noise cancellation characteristics. We simulates a filtered-X LMS algorithm and implements an algorithm to the TMS320C5x DSP processor and shows that result.

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Application of the Beam Propagation Method to the analysis of Dual-channel directional couplers (Dual-channel directional couplers 동작특성 해석을 위한 BPM의 적용)

  • Kang, Kyung-Woo;Kang, Hyung-Boo
    • Proceedings of the KIEE Conference
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    • 1993.07b
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    • pp.660-662
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    • 1993

  • We have numerically analyzed by using the Beam Propagation Method the Dual-channel directional couplers, which peforms a number of useful fuctions in thin-films devices, including power division, modulation, switching, frequency selection, and polarization selection. We also use the effective index method to reduce one dimension.

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2D Image Interpolation using Fuzzy Inference (퍼지 추론을 사용한 2D 영상의 보간)

  • Kang, Keum-Boo;Choi, Jae-Ho;Yang, Woo-S.
    • Proceedings of the KIEE Conference
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    • 2001.07d
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    • pp.2785-2788
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    • 2001

  • In this paper, we present a new interpolation scheme for image enhancement using fuzzy inference. In general, interpolation techniques are based on linear operators which are essentially lowpass filters, hence, they tend to blur fine details in the original image. In our approach, the operator itself balances the strength of its sharpening and noise suppressing components according to the properties of the input image data.

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UPFC Control for Power System Damping Reduction (계통동요 제어를 위한 UPFC제어기)

  • Yoon, Jong-Su;Yoon, Yong-Beum;Moon, Gun-Woo;Yoon, Seok-Ho;Choo, Jin-Boo
    • Proceedings of the KIEE Conference
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    • 1998.11a
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    • pp.256-258
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    • 1998

  • This paper presents a control system design for the UPFC of FACTS devices by optimal control scheme to enhance small-signal stability in the Power system. The feature of this UPFC controller is coordinated with generator exciter controller(AVR, PSS) to improve the total Power system stability and performance.

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