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)

13 Scopus Citations
View graph of relations

Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publication1997 IEEE International Conference on Acoustics, Speech, and Signal Processing
Subtitle of host publicationPlenary, Expert Summaries, Special, Audio, Underwater Acoustics, VLSI
Pages539-542
Volume1
Publication statusPublished - Apr 1997

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149
ISSN (Electronic)0736-7791

Conference

Title1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
PlaceGermany
CityMunich
Period21 - 24 April 1997

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)