Accession Number : ADD010681

Title :   Pseudo-Random Convolutional Interleaving.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Mui,S Y

Report Date : 30 Nov 1983

Pagination or Media Count : 15

Abstract : A method and apparatus for interleaving and deinterleaving pseudo-randomly a digital signal which is transmitted over a transmission channel is disclosed. A received bit stream is interleaved such that the order of the bits is varied in a non-random manner. The order of the interleaved bits is permutated in a pseudo-random manner and the bits are then transmitted over a transmission channel. The received bits are inverse permuted so as to return the order of the received bits to the order of the bits after the non-random interleaving step. The inverse permuted bits are then deinterleaved in the reverse order in which they were interleaved so as t reconstitute the original bit stream. (Author)

Descriptors :   *Patent applications, *Channels, *Information theory, Digital systems, Errors, Signals, Transmittance

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE