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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.6
- 수록면
- 443 - 449 (7page)
- DOI
- 10.5302/J.ICROS.2021.20.0197
이용수
초록· 키워드
오류제보하기
This paper proposes a novel multiple frequency rejection technique based on the STFT (Short-Time Fourier Transform) and APNF (All-Pass filter-based Notch Filter). Because a non-adaptive multiple notch filter cannot track the target frequencies, an adaptive filter is often used. However, the existing adaptive notch filters cannot accurately identify the number of frequencies, which may deteriorate the filtering performance. Furthermore, a time-frequency analysis can be performed to simultaneously estimate the number of target frequencies and track them. Therefore, a novel adaptive multiple notch filtering method is developed, adopting the STFT at the front end of APNF. In particular, an interpolation scheme is adopted to compensate for the low frequency resolution of STFT. This framework exhibits a smaller amplitude response distortion for the pass-band compared to that in cascade-type multiple notch filters and can thus reject the time-varying frequencies. A MATLAB simulation is performed to verify the performance of the proposed method. The results confirm that the proposed scheme outperforms the conventional adaptive notch filter in removing chirp signals and temporary signals.
목차
Abstract
I. 서론
II. STFT를 이용한 다중 주파수 추적
III. APNF를 이용한 다중 주파수 제거
IV. 시뮬레이션
V. 결론
REFERENCES
참고문헌 (15)
참고문헌 신청
J. Piskorowski, “Suppressing harmonic powerline interference using multiple-notch filtering methods with improved transient behavior,” Measurement, vol. 45, no. 6, pp. 1350-1361, Jul. 2012.
B. Widrow, J. R. Glover, J. M. McCool, J. Kaunitz, C. S. Williams, R. H. Hearn, and R. C. Goodlin, “Adaptive noise cancelling: Principles and applications,” Proc. of the IEEE, vol. 63, no. 12, pp. 1692-1716, Dec. 1975.
T. Yan, D. Lu, X. H. Tang, and J. Xiang, “High-selectivity UWB bandpass filter with a notched band using stub-loaded multi-mode resonator,” AEU-International Journal of Electronics and Communications, vol. 70, no. 12, pp. 1617-1621, Dec. 2016.
B. H. Kim and M. Y. Kim, “An adaptive filtering technique for vibration reduction of a rotational LOS control system and frequency noise reduction of an imaging system,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 20, no. 10, pp. 1014-1022, Oct. 2014.
K. Kim, S. Yun, S. Moon, and S. Kwon, “Transfer alignment filter based on quaternion matching,” Journal of Institute of Control, Robotics and Systems, vol. 25, no. 4, pp. 346-352, Apr. 2019.
B. Widrow, J. R. Glover, J. M. McCool, J. Kaunitz, C. S. Williams, R. H. Hearn, and R. C. Goodlin, “Adaptive noise cancelling: Principles and applications,” Proc. of the IEEE, vol. 63, no. 12, pp. 1692-1716, Dec. 1975.
T. Yan, D. Lu, X. H. Tang, and J. Xiang, “High-selectivity UWB bandpass filter with a notched band using stub-loaded multi-mode resonator,” AEU-International Journal of Electronics and Communications, vol. 70, no. 12, pp. 1617-1621, Dec. 2016.
B. H. Kim and M. Y. Kim, “An adaptive filtering technique for vibration reduction of a rotational LOS control system and frequency noise reduction of an imaging system,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 20, no. 10, pp. 1014-1022, Oct. 2014.
K. Kim, S. Yun, S. Moon, and S. Kwon, “Transfer alignment filter based on quaternion matching,” Journal of Institute of Control, Robotics and Systems, vol. 25, no. 4, pp. 346-352, Apr. 2019.
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