대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 D
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- Pages.2718-2720
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- 2002
신호의 리샘플링에 의한 실시간 주파수 계측 알고리즘
A real-time frequency measuring algorithm by resampling of a signal
- 윤재현 (원광대학교 전기공학과) ;
- 이승주 (원광대학교 전기공학과) ;
- 김기영 (원광대학교 전기공학과) ;
- 이현철 (원광대학교 전기공학과) ;
- 윤양웅 (원광대학교 전기공학과) ;
- 박형준 (원광대학교 전기공학과)
- Yoon, Chae-Hyun (Dept. of Electrical Engineering, Wonkwang University) ;
- Lee, Seung-Ju (Dept. of Electrical Engineering, Wonkwang University) ;
- Kim, Ki-Young (Dept. of Electrical Engineering, Wonkwang University) ;
- Lee, Hyun-Chul (Dept. of Electrical Engineering, Wonkwang University) ;
- Yoon, Yang-Woung (Dept. of Electrical Engineering, Wonkwang University) ;
- Park, Hyung-Jun (Dept. of Electrical Engineering, Wonkwang University)
- 발행 : 2002.07.10
초록
The algorithm that can estimate frequency in real-time by using the resampling of a signal which was known frequency band like biological signals, was suggested in this study. A sinusoid signal is simulated as a practical measured signal. The sinusoid signal is sampled by using the impulse-train, and is subtracted the backward sample from forward by the sampled signals. The continuous sign, such as positive, negative or zero is counted from the calculation result of the subtraction, and those is stored. Therefore, the measured frequency is estimated by using the magnitude of continuous sign and the sampling period. The algorithm designed in this study is proven through the computer simulation.
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