Stationary phase approximation for performing Fourier Transforms 1.0

Date Added: April 24, 2013 | Visits: 455

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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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