Pulse or digital communications – Repeaters – Testing
Patent
1989-11-20
1991-10-08
Gregory, Bernarr E.
Pulse or digital communications
Repeaters
Testing
341 81, 371 21, H04L 2730, H03M 700
Patent
active
050561057
ABSTRACT:
A psuedo-random interleaving method suitable for use in transmitting digital data. A pseudo-random pilot sequence is used for simultaneously reading from and writing to a vector of size Tv.gtoreq.Tc.times.Lm, the pilot sequence satisfying a minimum distance law Lm, except when blocking occurs. Deinterleaving is performed symmetrically by means of an inverse pilot sequence suitable for reconstituting successive code words.
REFERENCES:
patent: 4394642 (1983-07-01), Currie et al.
patent: 4547887 (1985-10-01), Gui
patent: 4559625 (1985-12-01), Berlekamp et al.
patent: 4759034 (1988-07-01), Nagazumi
patent: 4852102 (1989-07-01), Yamaguchi
IEEE International Conference on Communications, vol. 1, Jun. 19, 1983, Boston, Massachusetts, pp. 509-513; S. Y. Mui, "The Performance of Pseudorandum Interleaving in Conjunction with Viterby Decoding of convolutional Codes".
National Telecommunications Conference-NTC, vol. 3, Nov. 29, 1979, Washington, DC; J. B. Cain and J. M. Geist: "Interleaving Considerations for Convolutional Coding on Baussian Noise Channels with Burst Erasures", pp. 44.5.1-44.5.5.
Clarck and Cain: "Error Correcting Coding", 1981, Plenum Press, New York, pp. 349-352.
Darmon Marc
Harari Sami
Sadot Philippe
Alcatel Transmission par Faisceaux Hertziens
Gregory Bernarr E.
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