Astrophysics (index)

Time Series Analysis

(analysis of data points collected uniformly separated times)

Time Series Analysis is analysis of data representing a function of time, collected at specific points in time that are separated by a uniform interval. Such analysis is used in astronomy and numerous other fields, including signal processing, communications engineering, and weather forecasting.

There are many techniques, which can be classified as:

  • Frequency domain (e.g., spectral analysis).
  • Time domain.

In astronomy, data is often collected at irregular intervals, so the "time series analysis" used must accommodate that. Intervals involved can be fractions of a second or can be years, e.g., using historical data.


(mathematics,method)
http://en.wikipedia.org/wiki/http://en.wikipedia.org/wiki/Time_series

Referenced by:
Secular
Spectral Density

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