Improved phase estimation based on complete bispectrum and modified group delay

In this paper, a new method for extracting the system phase from the bispectrum of the system output has been proposed. This is based on the complete bispectral data computed in the frequency domain and modified group delay. The frequency domain bispectrum computation improves the frequency resolution and the modified group delay reduces the variance preserving the frequency resolution. The use of full bispectral data also reduces the variance as it is used for averaging. For the proposed method at a signal

• Type: Journal
• Year: 2008
• Where: SIVP
• Authors: S. V. Narasimhan, Nandini Basumallick, Ratana Chaitanya
• Keywords: Frequency Domain, Frequency Resolution, Group Delay, SIVP 2008