지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국지능시스템학회 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGENT SYSTEMS INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGENT SYSTEMS Vol.12 No.2
- 발행연도
- 2012.6
- 수록면
- 162 - 166 (5page)
이용수
초록· 키워드
오류제보하기
The instantaneous amplitude (IA) based on the higher order differential energy operator is proposed. And its general form for arbitrary order is also proposed. The various definitions of the IA and the instantaneous frequency (IF) estimators are considered. The IA and IF estimators based on the energy operators need less computational cost than the conventional IF and IA estimators exploiting the Hilbert transform. The IF and IA estimators are compared in terms of the frequency and amplitude tracking accuracy of the AM-FM signals. For noiseless case, the IA and IF estimators based on the Teager-Kaiser energy operator show better tracking performance than the IF and IA estimators based on the higher energy operators. However, under noisy condition, the IF and IA estimator based on the higher order energy operators with the order 3 and 4 show better tracking than the Teager-Kaiser energy based estimators. The IF and IA estimators are applied to signals in the various power anomalies to show their usefulness as the disturbance detectors.
목차
Abstract
1. Introduction
2. Instantaneous Frequency and Amplitude Estimators
3. Tracking Performance of Instantaneous Frequency and Amplitude Estimators
4. Application to Power Disturbances
5. Conclusions
References
참고문헌 (13)
참고문헌 신청
1. [학술지(정기간행물)] - F. Hlawatsch / 1990 / Linear and quadratic time-frequency representations / IEEE Signal Processing Magazine
2. [학술지(정기간행물)] - L. Qiu / 1995 / Fundamental frequency determination based on instantaneous frequency estimation / Signal Processing 44 : 233 ~ 241
3. [학술지(정기간행물)] - L. Qiu / 1995 / Fundamental frequency determination based on instantaneous frequency estimation / Signal Processing 44 : 233 ~ 241
4. [학술지(정기간행물)] - P. Maragos / 1993 / On amplitude and frequency demodulation using energy operators / IEEE Trans. Signal Processing 41 : 1532 ~ 1550
5. [학술지(정기간행물)] - P. Maragos / 1993 / Energy separation in signal modulations with application to speech analysis / IEEE Trans. Signal Processing 41 : 3024 ~ 3051
2. [학술지(정기간행물)] - L. Qiu / 1995 / Fundamental frequency determination based on instantaneous frequency estimation / Signal Processing 44 : 233 ~ 241
3. [학술지(정기간행물)] - L. Qiu / 1995 / Fundamental frequency determination based on instantaneous frequency estimation / Signal Processing 44 : 233 ~ 241
4. [학술지(정기간행물)] - P. Maragos / 1993 / On amplitude and frequency demodulation using energy operators / IEEE Trans. Signal Processing 41 : 1532 ~ 1550
5. [학술지(정기간행물)] - P. Maragos / 1993 / Energy separation in signal modulations with application to speech analysis / IEEE Trans. Signal Processing 41 : 3024 ~ 3051
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UCI(KEPA) : I410-ECN-0101-2013-028-003496343