Fáziskésleltetés

Fáziskésleltetés, a signal processing term, refers to the delay that occurs between the input and output of a system, specifically when this delay varies with frequency. In essence, different frequency components of a signal do not experience the same amount of time delay as they pass through the system. This means that the phase relationship between the input and output signals changes depending on the frequency.

A system with zero fáziskésleltetés would have an output that is a perfect, time-shifted replica of the input, with all frequency components delayed by the same amount. However, most real-world systems, such as electronic circuits, acoustic spaces, and communication channels, exhibit some degree of fáziskésleltetés. This non-uniform delay can lead to undesirable effects like signal distortion, especially in applications involving complex waveforms or multiple signals that need to maintain precise timing relationships.

Understanding and quantifying fáziskésleltetés is crucial in fields like audio engineering, where it can affect the perceived sound quality and spatial imaging. In telecommunications, excessive fáziskésleltetés can degrade the reliability of data transmission. Techniques exist to analyze and sometimes compensate for fáziskésleltetés to ensure the integrity and desired characteristics of the processed signal.