Time domain
This article needs additional citations for verification. (August 2012) (Learn how and when to remove this template message) 
Time domain is the analysis of mathematical functions, physical signals or time series of economic or environmental data, 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 realworld signals in the time domain. A timedomain graph shows how a signal changes with time, whereas a frequencydomain graph shows how much of the signal lies within each given frequency band over a range of frequencies.
Origin of term
The use of the contrasting terms time domain and frequency domain developed in U.S. communication engineering in the late 1940s, with the terms appearing together without definition by 1950.^{[1]} When an analysis uses the second or one of its multiples as a unit of measurement, then it is in the time domain. When analysis concerns the reciprocal units such as Hertz, then it is in the frequency domain.
See also
References
 ^ Lee, Y. W.; Cheatham, T. P., Jr.; Wiesner, J. B. (1950). "Application of Correlation Analysis to the Detection of Periodic Signals in Noise". Proceedings of the IRE 38 (10): 1165–1171. doi:10.1109/JRPROC.1950.233423.

This mathematicsrelated article is a stub. You can help Wikipedia by expanding it. 
This statisticsrelated article is a stub. You can help Wikipedia by expanding it. 
Return to Fuhz Home  This article covering Time domain is enhanced for the visually impaired.
The text of this Fuhz article is released under the GNU Free Documentation License
Privacy Policy  Latest Page William Tragni SCAM