Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2011-08-16
2011-08-16
Vuong, Quochien B (Department: 2618)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S350000, C375S355000, C455S063100, C455S067130, C455S296000, C455S307000
Reexamination Certificate
active
08000420
ABSTRACT:
A system and method in a radio receiver for joint synchronization and noise covariance estimation of a received signal. A spatially and temporally stacked signal model, whereby successive samples of temporally adjacent received signal vectors and corresponding training vectors are stacked, is used in the derivation of the estimation problem. The Toeplitz structure of the channel response matrix is neglected in the formulation of the estimation problem. The resulting estimator jointly estimates a synchronization position, a channel response matrix, and a noise covariance matrix. An estimate of a whitened channel is then computed based on the noise covariance matrix and the estimate of the channel response matrix.
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David Astely, Adnreas Jakobsson, A. Lee Swindlehurst, Burst Synchronization on Unknown Frequency Selective Channels with Co-Channel Interference Using an Antenna Array, Vehicular Technology Conference, May 16-20, 1999. Online vol. 3, May 16, 1999, pp. 2363-2367.
Hafeez Abdulrauf
Hui Dennis
Burleigh Roger S.
Telefonaktiebolaget L M Ericsson (publ)
Vuong Quochien B
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