Steered Response Power Localization of Acoustic Passband Signals

作者：Cobos Maximo^*; Garcia Pineda Miguel; Arevalillo Herraez Miguel

来源：IEEE Signal Processing Letters, 2017, 24(5): 717-721.

DOI：10.1109/LSP.2017.2690306

• Acoustic source localization
• generalized cross-correlation functions with phase transform (GCC-PHAT)
• passband signals
• steered response power phase transform (SRP-PHAT)

The vast majority of localization approaches using phase transform (PHAT) consider that the sources of interest are wideband low-pass sources. While this may be the usual case for common audio signals such as speech, PHAT methods are affected negatively by modulation artifacts when the sources to be localized are passband signals. In these cases, steered response power PHAT localization becomes less robust. This letter analyzes the form of generalized cross-correlation functions with PHAT when passband acoustic signals are considered, proposing approaches for increasing the localization performance through the mitigation of these negative effects.

• 出版日期2017-5