title: A frequency measurement algorithm for non-stationary signals by using wavelet transform.
abstract: Scalogram is widely used to measure instantaneous frequencies of non-stationary signals. However, the basic property of the scalogram is observed only for stationary sinusoidal functions. A property of the scalogram for non-stationary signal is analytically derived in this paper. Based on the property, a new frequency measurement algorithm is proposed. In addition, a filter that can separate two similar frequency signals is developed based on the wavelet transform.
authors.affiliation: KSTAR Research Center, NFRI, Daejeon 34133, South Korea.
authors.forename: Seong-Heon
authors.initials: SH
authors.lastname: Seo
authors.affiliation: KSTAR Research Center, NFRI, Daejeon 34133, South Korea.
authors.forename: Dong Keun
authors.initials: DK
authors.lastname: Oh