Smoothing of tensile signals of yarns

A smoothing algorithm for the processing of tensile signals of yarns is proposed. Our algorithm consists of three-stage smoothing B-spline interpolations and broken-point rectification (BPR) which corrects the time delay of broken-points of tensile signals. Smoothing B-spline interpolation transforms discrete signals into continuous B-spline space, in which discrete B-spline coefficients represent continuous signals so that correct tensile results can be calculated based on the continuous signals. The proposed smoothing algorithm raises the SNR of a sample tensile signal from 21 dB to 45 dB and the BPR algorithm reduces the time delay of broken-points on the smoothed tensile signals from 14 ms to 2.5 ms