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Stationary phase approximation for performing Fourier Transforms 1.0

  Date Added: April 24, 2013  |  Visits: 243

Stationary phase approximation for performing Fourier Transforms

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This function allows one to calculate the Fourier transform of a chirped function evaluated at specific points using the stationary phase approximation.Imagine a pulse with a large time-bandwidth produce: this would require a large amount of data points in order to evaluate the Fourier transform. Lets imagine that you only needed to know the FT at specific points, or over a limited range, then clearly a DFT (FFT) would result in unwanted calculations and may not be possible due to memory constraints. Proper use of this function can result in a dramatic reduction in calculation time and memory requirements.

Requirements: No special requirements
Platforms: Matlab
Keyword: Calculations Evaluate Imagine Limited Needed Order Range Result Unwanted
Users rating: 0/10

License: Shareware Size: 10 KB
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