Accession Number : ADD004349

Title :   Digital Correlator.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Roth,Albert

Report Date : 28 Jun 1977

Pagination or Media Count : 7

Abstract : A digital correlator which will detect a digital pattern in the presence of noise. In an n bit pseudo-noise (PN) sequence, comparison is made of the input word with m desired PN coded word patterns; a flag is raised when a pattern is detected and identified. In one embodiment all possible (six) PN code words are programmed in a ROM (Read Only Memory). The input word is compared with all six code words in a parallel sequential search mode. In another embodiment, comparison is made of a 31 bit input word with a programmed PN code word in a single parallel comparison. (Author)

Descriptors :   *Patents, *Correlators, Digital systems, Pattern recognition, Pseudo noise systems, Data transmission systems, Coding, Read only memories

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE