Sampled data subsampling apparatus

Details Sampled data subsampling apparatus Sampled data subsampling apparatus

1988-02-16

1989-04-04

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

375103, 3647241, H04B 166

Patent

active

048192520

ABSTRACT:
An antialias filtering and subsampling system incorporates a compound accumulator including three cascade connected accumulator circuits conditioned to integrate and dump the integrated values of n input samples. The integrated values from the three integrators are scaled, delayed and combined to produce substampled values of a signal which has been filtered according to the transfer function [sin(n.pi.ft)
sin(.pi.ft)].sup.3.

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N. Kouvaras et al., "Realisation of Nonrecursive Delta-Modulation Filters Using Look-Up Tables" IEEE Proceedings, vol. 134, Pt.G, No. 3, June 8; pp 127-131.

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