Blind adaptive filtering method for receivers of...

Pulse or digital communications – Equalizers – Automatic

Reexamination Certificate

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Reexamination Certificate

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07050490

ABSTRACT:
A blind adaptive filtering method for receivers of communication systems without need of training sequences, and whose performance is close to that of the non-blind linear minimum mean square error (LMMSE) receivers with training sequences required in practical environments of finite signal-to-noise (SNR) and data length. This algorithm is an iterative batch processing algorithm using cumulant based inverse filter criteria with super-exponential convergence rate and low computational load. The receivers to which the presented algorithm can be applied are (but not limited to) equalizers of conventional time division multiple access (TDMA) digital communication systems, and smart antennas based on space-time processing for wireless communication systems.

REFERENCES:
patent: 6049574 (2000-04-01), Noonan et al.
Chi et al., Blind Equalization Using Cumulant Based MIMO Inverse Filter Criteria for Multiuser DS/CDMA Systems in Multipath Proceedings of the 11th IEEE Signal Processing Workshop on Statistical Signal Processing, Aug. 6-8, 2001.
Inouye et al., “Super-Exponential Algorithms for Multichannel Blind Deconvolution”, IEEE Transactions on Signal Processing, vol. 48, No. 3, Mar. 2000.

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