A new nonparametric method for linear system phase recovery frombispectrum
Ye Li; Zhi Ding
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
Volume 41, Issue 6, Jun 1994 Page(s):415 - 419
Digital Object Identifier   10.1109/82.300202
Summary:For input signals with nonzero third order moment, the phase of a linear system transfer function can be identified from the bispectrum of its output signal. Instead of using partial bispectrum phase information which is more sensitive to noises and measurement errors, a new nonparametric method is proposed to utilize all the available bispectrum phase information. The proposed new method is computationally simple. It does not require finding the pseudo-inverse of a gigantic matrix as some existing methods do. Its effectiveness is demonstrated through computer simulations

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