A high-resolution quadratic time-frequency distribution for multicomponent signals analysis
- 1 October 2001
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Signal Processing
- Vol. 49 (10) , 2232-2239
- https://doi.org/10.1109/78.950779
Abstract
The paper introduces a new kernel for the design of a high resolution time-frequency distribution (TFD). We show that this distribution can solve problems that the Wigner-Ville distribution (WVD) or the spectrogram cannot. In particular, the proposed distribution can resolve two close signals in the time-frequency domain that the two other distributions cannot. Moreover, we show that the proposed distribution is more accurate than the WVD and the spectrogram in the estimation of the instantaneous frequency of a stepped FM signal embedded in additive Gaussian noise. Synthetic and real data collected from real-world applications are shown to validate the proposed distribution.Keywords
This publication has 13 references indexed in Scilit:
- Instantaneous frequency estimation of polynomial FM signals using the peak of the PWVD: statistical performance in the presence of additive gaussian noiseIEEE Transactions on Signal Processing, 1999
- Aircraft flight parameter estimation based on passive acoustic techniques using the polynomial Wigner–Ville distributionThe Journal of the Acoustical Society of America, 1997
- Generalized instantaneous parameters and window matching in the time-frequency planeIEEE Transactions on Signal Processing, 1997
- S-class of time–frequency distributionsIEE Proceedings - Vision, Image, and Signal Processing, 1997
- Alias-free generalized discrete-time time-frequency distributionsIEEE Transactions on Signal Processing, 1992
- Kernel design for reduced interference distributionsIEEE Transactions on Signal Processing, 1992
- The use of cone-shaped kernels for generalized time-frequency representations of nonstationary signalsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1990
- Estimation of instantaneous frequency using the discrete Wigner distributionElectronics Letters, 1990
- Improved time-frequency representation of multicomponent signals using exponential kernelsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- An efficient real-time implementation of the Wigner-Ville distributionIEEE Transactions on Acoustics, Speech, and Signal Processing, 1987