Two-error-location for quadratic residue codes
Russell John Higgs, John F. Humphreys · IEE Proceedings - Communications · 2002
A formula is found in terms of the syndromes for finding the locations of two errors in a received word of an e error-correcting quadratic residue code with e≥2. This formula is independent of the characteristic of the underlying field. All quadratic residues codes for which the formula is applicable are described.