Abstract
This paper develops nonnegative, high-resolution time-frequency representations (TFRs) that correspond with intuitive notions of energy distribution. These so-called consistent TFRs require the desired representation to be consistent with a set of spectrogram-based energy measurements. By formulating the desired representation as the solution to a constrained optimization problem, it can be solved using a gradient-projection technique. The consistent TFR demonstrates superior performance compared to existing techniques on a variety of test signals and biological data. The result is a high-resolution, nonnegative, intuitively-satisfying TFR that should prove to be an excellent tool for exploratory data analysis.
Original language | English (US) |
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Pages (from-to) | 445-448 |
Number of pages | 4 |
Journal | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
Volume | 6 |
State | Published - 2003 |
Externally published | Yes |
Event | 2003 IEEE International Conference on Accoustics, Speech, and Signal Processing - Hong Kong, Hong Kong Duration: Apr 6 2003 → Apr 10 2003 |
ASJC Scopus subject areas
- Software
- Signal Processing
- Electrical and Electronic Engineering