|
|
|
“On Blind Identification of A Band-Limited Nonminimum-Phase Channel from Its Output Autocorrelation”
by Yuanjie Chen and Chrysostomos L. Nikias
September 1992
It has been well established in the literature that when the input to a linear time invariant (LTI) channel (system) is a continuous-time white noise, the identification of the phase of the channel from its output autocorrelation is impossible. To make the channel identification from its output autocorrelation unique, we need to know a priori the whole phase response of the channel. In this paper, we show that when the input is a discrete-time white noise sequence, what is needed to make the channel identification from its output autocorrelation unique is reduced to the phase response in the frequency range of .