FIELD: physics.
SUBSTANCE: data signal quantisation for information value sequence involves frequency-selective filtering of information value sequence to obtain filtered information value sequence, and quantisation of filtered information values to obtain quantised information value sequence via quantising step function converting filtered information values to quantised information values, with the function course more steep under threshold information value than over it.
EFFECT: improved data compression for information signal.
10 cl, 15 dwg
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