fresnel
Example of input parameters to run start using Fresnel data.
Contents
Syntax and Example
inseti = 'fresnel';
start
- General information about using inseti are in example.html
- Make sure that the experimental data from Institute Fresnel are in the correct folder, in this case: inexpdata/fresnel_opus_1/twodielTM_8f.exp.
- Real-world data from Institute Fresnel are not part of this package. You have to download them separately, see readRAWData.html.
Input Arguments
Specific input arguments to use the computational framework with data from Institute Fresnel:
- seti.expData = 'fresnel'; : in general to use experimental data from Institute Fresnel (currently no other data is available).
- seti.nuMax : 2*nuMax+1 coefficients are computed for polynomial approximation, see matchIncField.html for details.
- seti.ampCalc : method to compute coefficients, we recommend 1, see matchIncField.html for details.
- seti.fresnelFreq : Frequency in Hz (make sure that data for this frequency is available, see [1] and [2])
- seti.fresnelFile : Path to *.exp-file with data from Institute Fresnel
For other fields in struct seti see setiRef.html.
References
- [1] Kamal Belkebir and Marc Saillard. Special section on testing inversion algorithms against experimental data. Inverse Problems, 17(6):1565-1571, 2001. URL: https://doi.org/10.1088/0266-5611/17/6/301.
- [2] Jean-Michel Geffrin, Pierre Sabouroux, and Christelle Eyraud. Free space experimental scattering database continuation: experimental set-up and measurement precision. Inverse Problems, 21(6):S117, 2005. URL: https://doi.org/10.1088/0266-5611/21/6/s09.
See Also
Code
% -- setGrid seti.dim = 2; seti.rCD = 0.2; seti.nCD = 256; % -- setKernel seti.model = 'helmholtz'; % -- setExpData seti.expData = 'fresnel'; seti.nuMax = 10; seti.ampCalc = 1; % -- reconstruction seti.beta = 1E-5; seti.alpha = 500; seti.tau = 1.6; seti.physBounds = [-1,3,0,1]; seti.nOut = 20; seti.useDis = 1; seti.pdaStepsize = 'fix'; seti.pdaN = 10; % -- figures and files seti.usecbarlim = 1; seti.cbarlim = [-0.40,2.40]; seti.plotPublish = 1; seti.plotFreq = 10; seti.plotFreqiPda = 0; seti.savedata = 0; % -- Fresnel: 2 dielectrics with 5 GHz seti.delta = 0.25; seti.fresnelFreq = 5*1E9; seti.fresnelFile = 'inexpdata/fresnel_opus_1/twodielTM_8f.exp';