A new adaptive constrained LMS time delay estimation algorithm
Signal Processing
Rapidly Adapting Machine Vision for Automated Vehicle Steering
IEEE Expert: Intelligent Systems and Their Applications
Voice Source Localization for Automatic Camera Pointing System in Videoconferencing
ICASSP '97 Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '97) -Volume 1 - Volume 1
Real-time sound localization using field-programmable gate arrays
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1
Acoustic source location in noisy and reverberant environment using CSP analysis
ICASSP '96 Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 02
| Hi-index | 0.00 |
The cross power-spectrum phase (CSP) method plays an important role in time delay estimate due to its efficiency in acoustic source localization. Generally, impacted by the spatial noise and reverberation in a room, the positioning accuracy could be greatly enhanced. However, this method could hardly lead to results when the energy of signal is small. In this paper, a new method is proposed: covariance matrix that from the multi-channel signals were applied and the characteristic of the coherent function was employed. Experiments under various conditions were carried out to demonstrate the new method's novelty, including adding background music to simulate the real environments. The 240 groups' data we achieved reached localization accuracy of 97.5% in normal experiments. We also obtained 85.42% and 83.75% correct rate in low and strongly musical environments, respectively.