DEVICE AND METHOD TO PROCESS ACTUAL SUBRANGE SIGNAL TO WEAKEN EFFECTS OF ALIASING Russian patent published in 2011 - IPC G10L19/02 

FIELD: information technologies.

SUBSTANCE: to process a subrange signal from a combination of actual subrange signals, which represent an actual signal of discrete time, generated by a bank of analysis filters, there is a weighing unit (10) to weigh a subrange signal with a weight ratio defined for a subrange signal, to produce a signal of weighed range (11). Besides, a unit (12) of a corrective member definition calculates a correction member, besides, the unit of the correction member definition is arranged with the possibility to calculate a corrective member with application of at least one signal of the second subrange and with application of the second weight ratio provided for the second subrange signal, besides, both these weight ratios are different. Then a corrective member is combined with a signal of the weighted subrange to produce a corrected subrange signal.

EFFECT: reduced aliasing, even if subrange signals are weighed differently.

31 cl, 21 dwg