What is the physical significance of alpha value in Half Quadratic Filter for denoising EBSD data?

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Mustafa Rifat

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Jul 19, 2020, 11:25:54 PM7/19/20

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I am currently working on Nickel superalloy data. To denoise the EBSD data I am using half quadratic filter. The default alpha value is 0.5, which is giving me a maximum KAM of 2.31 degrees. On the other hand, if I set the alpha value equal to 0.1, I get a KAM value of 2.49 degrees. What is the physical significance of this alpha value?

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