frequentiekarakteristiek

Frequentiekarakteristiek, also known as frequency response, describes how a system's output amplitude and phase relate to the frequency of its input signal. It is a fundamental concept in signal processing, acoustics, electronics, and control systems. Essentially, it tells you how a system will behave when subjected to different frequencies. For example, in audio, a loudspeaker's frequency characteristic indicates which frequencies it reproduces louder or softer. In electronics, a filter's frequency characteristic shows which frequencies it allows to pass through and which it attenuates. The characteristic is typically represented graphically, with frequency plotted on the horizontal axis and amplitude (often in decibels) and phase (in degrees) on the vertical axes. A flat frequency response implies that the system amplifies or attenuates all frequencies equally. Deviations from flatness indicate frequency-dependent behavior. Understanding the frequency characteristic is crucial for designing and analyzing systems to ensure they perform as intended across a desired range of frequencies. It helps in identifying resonances, distortions, and limitations of a system.