An improved peak-frequency-shift method for Q estimation
Ning Tu, Wen‐kai Lu · 2009
There are mainly two frequency-shift methods developed for Q estimation: the centroid-frequency-shift method and the peak-frequency-shift method. Both of the two methods have advantages and disadvantages. Here we discuss and compare the two methods in detail and propose a novel frequency-shift method for Q estimation, which can improve Q estimates by combining the benefits of the two methods together and avoiding their shortcomings.