Name
Title | ||
|---|---|---|
TDOA estimation based on phase-voting cross correlation and circular standard deviation. |
Abstract | ||
|---|---|---|
This paper proposes a new TDOA estimation based on phase-voting cross correlation and circular standard deviation. Based on phase delay and kernel function, the proposed method generates a probability density function (PDF) of TDOA for each frequency bin. TDOA estimate is determined by voting the PDFs generated for all frequency bins. Peak positions of the bin-wise PDFs for the target signal are concentrated only at the target time difference because peak positions for the noise totally differ among bins and periodicity of peaks depends on frequency. Therefore, by voting the PDFs for all frequency bins, the peak position for the target can be easily identified. The kernel width of PDF is determined by circular standard deviation of cross spectral phase for each frequency bin. This width control enhances peaks of PDFs for high SNR frequency bins since phases for high SNR bins are more stable than those for low ones. Evaluation with ship and drone sounds shows that the RMSE of TDOA estimation by the proposed method reaches 0.37 times that by GCC-PHAT. |
Year | Venue | Field |
|---|---|---|
2017 | European Signal Processing Conference | Cross-correlation,Bin,Signal-to-noise ratio,Algorithm,Mean squared error,Group delay and phase delay,Statistics,Probability density function,Standard deviation,Mathematics,Kernel (statistics) |
DocType | ISSN | Citations |
Conference | 2076-1465 | 0 |
PageRank | References | Authors |
0.34 | 8 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Masanori Kato | 1 | 7 | 4.09 |
| Yuzo Senda | 2 | 24 | 4.05 |
| Reishi Kondo | 3 | 0 | 3.04 |