Pulse or digital communications – Receivers – Interference or noise reduction
Patent
1994-08-09
1996-10-08
Chin, Stephen
Pulse or digital communications
Receivers
Interference or noise reduction
375229, H04B 110, H03H 1700
Patent
active
055639194
ABSTRACT:
A high-throughput filtering method and corresponding apparatus in which each output sample sn is determined by weighting N input samples xi by multiplying the input samples by N coefficients, where the N coefficients are each decomposed into a set of coordinates, each coordinate corresponding to P bits of the coefficient. Essentially, input samples are multiplied by the coordinates of each of the coefficients in a pre-processing operation where the output signals corresponding to the resulting products for a coefficient are added in an adding block. A plurality of adding blocks are provided corresponding respectively to the coefficients such that each block includes the summation result of the products for a corresponding coefficient. The summation result from a previous adding block is added to the summation result of a current block, and the result of this addition is supplied to the next adding block. The output signal is obtained in this manner.
REFERENCES:
Philips Journal of Research, vol. 30, No. 1, Feb. 1975, Einhoven, NL, pp. 73-84; T. A. Claasen E. A.: "Some Considerations on the Implementation of Digital Systems for Signal Processing".
IEEE Acoustics, Speech, and Signal Processing Magazine, vol. 25, No. 3, Jun. 1977, New York, US, pp. 256-257; Genya Kishi E. A.: "A New Realization Scheme of Digital Filters-Row-Wise Addition Configuration".
Technische Rundschau, vol. 81, No. 25, Jun. 23, 1989, Bern, Switzerland, pp. 52-55; Daniel Luthi: "Hochleistungs-DS-Prozessoren in ASIC".
Belis Eric
Gayrard Jean-Didier
Marguinaud Andre
Rousset Daniel
Alcatel Espace
Chin Stephen
Phan Hai H.
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