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James Kirk


Durham

Active since 2015

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Question


Comparing The Frequency of Two Signals With Periodogram
I have a series of distorted sine waves that I am trying to determine the frequency of. It would appear that the periodogram fun...

meer dan 8 jaar ago | 0 answers | 0

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Question


Very Slow LaguerreL Function (mupadmex (MEX-file))
I have a function that generates a Laguerre-Gaussian profile, using the built in laguerreL on a meshgrid of X-Y values. I have n...

bijna 9 jaar ago | 1 answer | 0

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Question


How does Matlab handle the edge of an array?
I have some code to preform the Crank-Nicolson Method on on arrays in both 1D and 2D, and while I was testing it for the case fo...

bijna 9 jaar ago | 0 answers | 0

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Question


Successive FFT2 transforms cause an increase in amplitude even though each individual transform is normalised.
I will be very grateful if anyone can help here. I have some code to simulate Fourier Optics and need to achieve this with a ser...

bijna 9 jaar ago | 0 answers | 0

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FFT result looks nothing like analytic result
Forgive me if I am missing understanding something simple here but I am confused by exactly what the FFT function returns in Mat...

bijna 9 jaar ago | 1 answer | 0

1

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Converting Scales after FFT
I was hoping someone could help me understand exactly how Matlab's FFT function deals with scaling axes. I am developing some Di...

bijna 9 jaar ago | 1 answer | 0

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