A four-parameter sine wave curve-fit method is intro - duced, which is based on the three-parameter sine wave curve-fit method and its an absolute convergent course.
介绍一种用三参数正弦波拟合算法实现的、绝对收敛的四参数最小二乘正弦波拟合算法，给出了其收敛区间、绝对收敛判据以及实现过程。
The uncertainty of evaluation results of delay between channels of linear measurement system by using the least mean square four-parameter sine-wave curve-fit method is described.
介绍了用正弦波拟合法评价测量系统通道间延迟时间差不确定度的分析和评定过程。
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