Title :
Robust STFT with adaptive window length and rotation direction
Author :
Wei, Yongmei ; Bi, Guoan
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
This paper presents a short time Fourier transform that uses windows with adaptive length and rotation direction for signals that contain both linear and nonlinear components. Experiments show that the proposed method is robust against impulse noise and provides a good resolution.
Keywords :
Fourier transforms; Gaussian noise; chirp modulation; impulse noise; signal resolution; time-frequency analysis; adaptive window length; impulse noise; linear component; nonlinear component; short time Fourier transform; signal resolution; signal rotation direction; time-frequency analysis; Bismuth; Chirp; Discrete transforms; Fourier transforms; Linearity; Low pass filters; Noise robustness; Signal analysis; Signal resolution; Time frequency analysis;
Conference_Titel :
Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on
Print_ISBN :
0-7803-8185-8
DOI :
10.1109/ICICS.2003.1292572
