IMPROVEMENT OF TDOA MEASUREMENT USING WAVELET DENOISING WITH A NOVEL THRESHOLDING TECHNIQUE
Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45) › 32_Refereed conference paper (with ISBN/ISSN)
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Title of host publication | 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing |
| Subtitle of host publication | Plenary, Expert Summaries, Special, Audio, Underwater Acoustics, VLSI |
| Pages | 539-542 |
| Volume | 1 |
| Publication status | Published - Apr 1997 |
Publication series
| Name | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
|---|---|
| ISSN (Print) | 1520-6149 |
| ISSN (Electronic) | 0736-7791 |
Conference
| Title | 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) |
|---|---|
| Place | Germany |
| City | Munich |
| Period | 21 - 24 April 1997 |
Link(s)
Abstract
In this paper, wavelet denoising is applied in time delay estimation between signals received at two spatially separated sensors in the presence of noise. Prior to cross correlation, each of the sensor outputs is denoised according to a novel thresholding rule in order to increase the input signal-to-noise ratio. Unlike conventional generalized cross correlators (GCCs), it does not require spectral estimation of the source signal and the corrupting noises which may introduce large delay variance. It is proved that the delay estimate provided by the proposed method is globally convergent to the true value with a high probability. Computer simulations illustrate that the technique outperforms other GCCs for different SNRs when the sampling rate is sufficiently high.
Citation Format(s)
IMPROVEMENT OF TDOA MEASUREMENT USING WAVELET DENOISING WITH A NOVEL THRESHOLDING TECHNIQUE. / Wu, S. Q.; So, H. C.; Ching, P. C.
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing: Plenary, Expert Summaries, Special, Audio, Underwater Acoustics, VLSI . Vol. 1 1997. p. 539-542 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45) › 32_Refereed conference paper (with ISBN/ISSN)
