FIELD: information technologies.
SUBSTANCE: invention provides for coding/decoding of a digital signal, in particular, using transformation with closure by means of weighing windows. According to the invention, two serial units of signal count with equal size may be weighed by appropriate different serial windows. These two windows may be selected independently on each other in accordance with the criterion corresponding to signal characteristics (entropy, ratio of data transfer speed/distortion), which are determined for each of two units.
EFFECT: increased quality of coding due to accurate adaptation of windows to signal properties.
19 cl, 12 dwg
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