One bit matched filter with low complexity and high speed

Details One bit matched filter with low complexity and high speed One bit matched filter with low complexity and high speed

1998-10-14

2000-12-05

Vo, Don N.

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

708422, H04L 2706

Patent

active

061576840

ABSTRACT:
Described is an one bit matched filter for generating a sequences of correlations between a signal bit stream and a sample stream of n sample bits. The n sample bits are arranged in a rang of n bit positions n, n-1, . . . , 2, 1. Among the n sample bits, m boundary positions are defined based on the bit pattern of the sample stream, where m<n. At a specific time T(k), the m boundary positions are used to generate a Contribution (k) for a section of signal bits that are shifted into the n bit positions. At the time T(k), a Correlation (k) is generated by adding the Contribution (k) with the Correlation (k-1) that was generated at the previous time T(k-1).

REFERENCES:
patent: 4989009 (1991-01-01), Zerkowitz
patent: 5239496 (1993-08-01), Vancraeynest
patent: 5684727 (1997-11-01), Campbell et al.

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