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Time domain is a term used to describe the analysis of mathematical functions, or physical signals, with respect to time. In the time domain, the signal or function's value is known for all real numbers, for the case of continuous time, or at various separate instants in the case of discrete time. An oscilloscope is a tool commonly used to visualize real-world signals in the time domain. Speaking non-technically, a time domain graph shows how a signal changes over time, whereas a frequency domain graph shows how much of the signal lies within each given frequency band over a range of frequencies.

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Up to date as of January 14, 2010

From Wikiversity

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The most common representation of signals and waveforms is in the time domain. However, most signal analysis techniques work only in the frequency domain. The time domain representation of a typical Continuous-time Signal is s(t) and that for a typical Discrete-time signal is s[n].

Raghav vs 06:52, 6 February 2008 (UTC)

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