zero-crossing
1Zero crossing — is a commonly used term in electronics, mathematics, and image processing. In mathematical terms, zero crossing basically means the changing of sign (e.g. from positive to negative), that is represented with a crossing of the axis (zero value) in …
2zero crossing — nulio perėjimas statusas T sritis radioelektronika atitikmenys: angl. zero crossing; zero passage vok. Nulldurchgang, m rus. проход через нуль, m; прохождение через нуль, n pranc. passage par zéro, m …
3Zero-crossing rate — The zero crossing rate is the rate of sign changes along a signal, i.e., the rate at which the signal changes from positive to negative or back. This feature has been used heavily in both speech recognition and music information retrieval and is… …
4Zero Crossing Rate — Le Zero Crossing Rate (souvent utilisé sous sa forme abrégée ZCR) est le taux de changement de signe d un signal. Le ZCR a beaucoup été utilisé en reconnaissance de la parole et en Recherche d information musicale. Il est défini par: où s est un… …
5Zero crossing threshold detector — A zero crossing threshold detector is an electronic circuit that consists of an operational amplifier with an input voltage at its positive input (see circuit diagram). Often used in conjunction with other circuit elements, it usually functions… …
6zero passage — nulio perėjimas statusas T sritis radioelektronika atitikmenys: angl. zero crossing; zero passage vok. Nulldurchgang, m rus. проход через нуль, m; прохождение через нуль, n pranc. passage par zéro, m …
7Crossing number (graph theory) — A drawing of the Heawood graph with three crossings. This is the minimum number of crossings among all drawings of this graph, so the graph has crossing number cr(G) = 3. In graph theory, the crossing number cr(G) of a graph G is the… …
8Crossing number (knot theory) — In the mathematical area of knot theory, the crossing number of a knot is the minimal number of crossings of any diagram of the knot. It is a knot invariant. By way of example, the unknot has crossing number zero, the trefoil knot three and the… …
9Reconstruction from zero crossings — The problem of reconstruction from zero crossings can be stated as: given the zero crossings of a continuous signal, is it possible to reconstruct the signal (to within a constant factor)? Worded differently, what are the conditions under which a …
10passage par zéro — nulio perėjimas statusas T sritis radioelektronika atitikmenys: angl. zero crossing; zero passage vok. Nulldurchgang, m rus. проход через нуль, m; прохождение через нуль, n pranc. passage par zéro, m …
