VDA 2008 (02/2007) English - withdrawn

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VDA 2008: Geometrical Product SPecifications: Surface Texture - "Robust Gaussian Regression Filter" Definition and Application (Version 02/2007) - Gruppenlizenz (group license), AGB (GTC) Art. 10, 2 - Language of the document English

Withdrawn / Zurückgezogen: This VDA recommendation no longer describes the current state of the art. It is still available as a historical edition for purchase on request.


This VDA Recommendation describes the application of the robust Gaussian regression filter for surface profiles according to ISO DTS 16610-31. Utilizing the robust Gaussian regression filter allows for the determination of a reliable reference line for the roughness of plateau-like surface profiles of manufactured components. The filter does not take into account deep pores and protruding peaks, which may lead to a falsification of the reference line's position. It works without running-in and running-out lengths and is able to approximate form components with up to second-degree accuracy.

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