| 摘要 |
The invention relates to a method and device for the conversion of digital signals comprising a phase involving modulation with the aid of a vector lattice encoder. The inventive method comprises iterative steps which are performed on N output candidates, consisting in filtering (Hx, Hq), determining the difference between the filtered signals (Ref3, Ref6), calculating two possible evolutions for said options, pre-selecting (PRESEL) the candidates that minimise the difference, weighting the difference with a cost function (W), marking the candidates eliminated for a subsequent iteration, and selecting (SEL) the best candidate over a period determined by a historical decision dimension. The invention also relates to the use thereof in relation to a digital audio signal amplifier. |
