Patent ID: 8059709
Filing Date: 2011-11-15
Classification: H04B,H04L

Abstract:
1. Space-time coding method for an ultra wide band (UWB) transmission system comprising two radiation elements, said method comprising the steps of: coding a block of information symbols (S=(a characterised in that a first and a second of said vectors are obtained by means of a first linear combination of a first and a second pair of said symbols, and in that a third and a fourth of said vectors are obtained by means of a second linear combination of said first and second pairs of said symbols, the first and the second linear combinations using scalar coefficients ({tilde over (α)}, {tilde over (β)}, −{tilde over (β)}, {tilde over (α)}), of which the corresponding ratios are approximately equal to the Golden number and to its opposite, the components of one of said vectors also being permuted according to a cyclic permutation prior to modulating said pulse UWB signal.