frequency-response curve
Noun: 1. In electronics and signal processing, a graphical representation that shows the relationship between the frequency of an input signal and the magnitude (amplitude or gain) of the output signal from a system, such as an amplifier, filter, or speaker. It is a plot of gain (or attenuation) versus frequency.
The term is used to analyze and describe how a system behaves across different frequencies. It is a fundamental tool in engineering design and testing. * The engineer analyzed the frequency-response curve to determine the amplifier's bandwidth. * A flat frequency-response curve in an audio system indicates that all frequencies are reproduced with equal gain. * Designing a filter requires carefully shaping its frequency-response curve.
- Bode Plot: A specific type of frequency-response curve that plots both magnitude (gain) and phase shift against frequency on logarithmic scales.
- The concept can be extended beyond electronics to describe the behavior of any linear time-invariant system, such as in mechanical or acoustic engineering.
- Frequency Response (n): The broader characteristic of a system that the curve describes.
- Magnitude Response (n): Often used synonymously, emphasizing the amplitude/gain aspect.
- Transfer Function (n): The mathematical representation from which a frequency-response curve is derived.
- Gain-frequency characteristic
- Magnitude plot (in context)
- To plot a frequency-response curve: To create the graph through measurement or calculation.
- The curve shows/indicates/demonstrates: Common verbs used when describing what the graph reveals about system performance.
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(electronics) a graph of frequency response with signal amplitude or gain plotted against frequency
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