Rotationally invariant coding

Details Rotationally invariant coding Rotationally invariant coding

1992-04-16

1995-12-05

Beausoliel, Jr., Robert W.

Excavating

371 371, 371 377, 375303, 375308, 375329, H04L 522, H04L 2516

Patent

active

054736218

ABSTRACT:
In a modulation scheme involving differential encoding and Reed-Solomon encoding, the differential encoding is performed before the Reed-Solomon encoding in the transmitter. In the receiver, a differential decoding operation is performed after an RS decoding operation. The overall coding scheme and the RS decoding are so arranged as to ensure that the RS decoding will be proper in the presence of phase rotations, notwithstanding the fact that the differential encoding is performed before the RS encoding in the transmitter and the fact that the RS decoding is performed before the differential decoding in the receiver.

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patent: 5329551 (1994-07-01), Wei
A. M. Michelson and A. H. Levesque, Error-Control Techniques for Digital Communication, John Wiley & Sons, 1985, Chapter 6.

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