| 摘要 |
Presented is a digital signal processing method for accurate detection of position and amplitude of digitized analog signals coming out of optical or magnetic pick up heads The least-square parametric fit of a second-or fourth-degree polynomial curve to 4 or more data points at a time, and minimization of the sum of square residuals allow for precise determination of peak top position and amplitude for the purpose of recordin g quality diagnostics. The method has been proven very reliable and noise-resistant.</ SDOAB>
|
