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Published 1994 | Submitted
Book Section - Chapter Open

Spatio-Temporal Blind Identification Of FIR Channels For Multiple Users


A new method is proposed for blind identification of possibly nonminimum phase FIR channels with multiple users. The technique exploits the structure of the signals received by an antenna array in both the temporal and spatial frequency domains. Although in the single antenna case it is necessary to use cyclostationary signals or higher order statistics to identify the magnitude and phase of the channel, we circumvent such a requirement by exploiting certain multichannel features of the array. We show that if multiple users are present, the nonminimum phase channels associated with each user can still be identified from the second-order statistics, provided additional spatial structure exists.

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©1994 Princeton University. This work was supported in part by the Advanced Research Projects Agency of the Department of Defense and was monitored by the Air Force Office of Scientific Research under contract F19620-93-1-0085. Support was also provided by the Army Research Office under grant DAAH04-93-G-0029.

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August 20, 2023
August 20, 2023