Reduced logic correlator

Details Reduced logic correlator Reduced logic correlator

1993-06-25

1995-09-05

Mai, Tan V.

Boots, shoes, and leggings

36472411, G06F 15336, G06F 1531

Patent

active

054485070

ABSTRACT:
An improved correlator or matched filter for binary coefficients is provided which reduces the amount of logic required to indicate the receipt of a predetermined code word. The matched filter includes a plurality of stages of delay, where the number of stages in the delay is preferably equal to the product of the number of chips in the code word and the number of times each chip is sampled. Logic input locations are selected corresponding to transitions in the code word. Digital logic responds to signals available at each logic input for generating data indicating the change in the degree of match between the received signal samples and the code word. An integrator is the last element in the logic and is provided with the foregoing change information. The output of the integrator is then an indication of the degree of match between the most recent set of signal transitions corresponding to the number of transitions in the sampled code word and the code word itself.

REFERENCES:
patent: 3167738 (1965-01-01), Westerfield
patent: 3458694 (1969-07-01), Whitehouse et al.
patent: 3670151 (1972-06-01), Lindsay et al.
patent: 3760355 (1973-09-01), Bruckert
patent: 4244029 (1981-01-01), Hogan et al.
patent: 4285046 (1981-08-01), Henry
patent: 4771264 (1988-09-01), Childers
patent: 4829462 (1989-05-01), Freeman
Rappaport et al, "Spread-Spectrum Signal Acquisition: Methods and Technology", IEEE Communications Magazine, vol. 22, No. 6, Jun. 1984, pp. 6-21.

Affiliated with

Also associated with

Rating

Reduced logic correlator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reduced logic correlator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced logic correlator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-478271