Flatness of Scanner Data

Performance objective for sheet forming processes is to maintain uniformity or flatness in (Y - The target matrix represents y T for 

A similar transformation of all scan data residuals, i.e., columns of is accomplished by and B = Y j where = [P1P2] and 

Sheet forming processes have univariate MD and multivariate CD controllers. Process dynamics for both are dominated by gain and time delay. Most of the appreciable dynamics arise from the design of signal filters and 

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