Block decision feedback equalizer

Details Block decision feedback equalizer Block decision feedback equalizer

1996-03-01

1998-08-04

Ghebretinsae, Temesghen

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

375232, 3647242, H03H 730

Patent

active

057905983

ABSTRACT:
A block decision feedback equalizer uses a Cholesky algorithm to factor a channel impulse response correlation matrix in order to solve for data received over a dispersive communications channel. While the Cholesky algorithm increases the computational complexity of the initial data symbol estimate (the result of a linear block estimation), its use allows the employment of a recursive update for computing successive data symbols with little additional computation. Further, the Cholesky algorithm is free of limitations that would restrict detection to cases where the channel span or memory is smaller than the probe segment following the data block to be detected. Additional functions such as diversity combining, incorporation of a time-varying channel response model and fractional baud-period sampling are provided in the block detector.

REFERENCES:
patent: 4365338 (1982-12-01), McRae et al.
patent: 4730343 (1988-03-01), Kanemasa et al.
patent: 5293401 (1994-03-01), Serfaty
patent: 5414734 (1995-05-01), Marchetto et al.
patent: 5436929 (1995-07-01), Kawas Kaleh
patent: 5465276 (1995-11-01), Larsson et al.
S. Crozier et al. "Short Block Equalization Techniques Employing Channel Estimation For Fading Time Dispersive Channel" 39 IEEE Vehicular Technology Conference, pp. 142-146, Mar. 5, 1989.
R. Ramesh "A Multirate Signal Processing Approach to Block Decision Feedback Equalizer" Globecom IEEE 90 pp. 1685-1690 vol. 3 of 3, 1990.
Williamson et al. "Block Decision Feedback Equalization" IEEE Transactions vol. 40, No. 2 pp. 255-266, Feb. 1992.

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