Digital correlation receiver

Details Digital correlation receiver Digital correlation receiver

1977-02-03

1978-09-05

Gruber, Felix D.

Boots, shoes, and leggings

178 691, 179 15BS, 3401462, 364769, G06F 1534, H04B 719

Patent

active

041124987

ABSTRACT:
A digital correlation receiver, particularly for satellite communications transmission, wherein the signal channels or bursts, from various ground stations, combined in a time division multiplex (t.d.m.) arrangement and provided with a preamble comprising a synchronizing word, are time-staggered at the satellite end, and, relative to the reference burst which marks the beginning of the frame, are combined to form a frame and retransmitted with time division multiplex access (TDMA); in which a shift register receives the incoming bit flow at the receiving end and comparators are connected to the individual cells of the shift register, and at whose second comparator inputs a logic state exists representing the synchronizing word to which the received word should correspond, the output of the respective comparators being supplied, in respective combinations, to successive groups of adder stages which are interconnected over corresponding stores, with the respective addition results being supplied to an analysis circuit from which the correlation peak is derived.

REFERENCES:
patent: 3346844 (1967-10-01), Scott et al.
patent: 3363233 (1968-01-01), Petzold
patent: 3656109 (1972-04-01), Conway
patent: 3760355 (1973-09-01), Bruckert
patent: 3796868 (1974-03-01), Kaul et al.
patent: 3947673 (1976-03-01), Jordan et al.
patent: 4006302 (1977-02-01), Reisinger
patent: 4010420 (1977-03-01), Reiner et al.

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