论文信息 - Instantaneous and frequency-warped techniques for source separation and signal parametrization

Instantaneous and frequency-warped techniques for source separation and signal parametrization

This paper summarizes several contributions to the study of audio signal parameterization and source separation. The philosophy of frequency-warped signal processing provides powerful means for separating the AM and FM contributions to the MS bandwidth of a complex-valued, frequency-varying sinusoid p[n], transforming it into a signal with slowly-varying parameters. The use of frequency- and harmonic-locked loops to track the phase variation of analytic signals provides the necessary accurate instantaneous frequency information to drive frequency-warped filtering.

A. L. Wang

[1] Ronald N. Bracewell,et al. The Fourier Transform and Its Applications , 1966 .

[2] Ramdas Kumaresan,et al. RISC: An Improved Costas Estimator-Predictor Filter Bank For Decomposing Multicomponent Signals , 1994, IEEE Seventh SP Workshop on Statistical Signal and Array Processing.

[3] Boualem Boashash,et al. Estimating and interpreting the instantaneous frequency of a signal. I. Fundamentals , 1992, Proc. IEEE.

[4] John P. Costas. Residual Signal Analysis - A Search and Destroy Approach to Spectral Analysis , 1980 .

[5] L. Mandel. Interpretation of Instantaneous Frequencies , 1974 .