sine curve

The curve fitting method can precisely extract the 4 parameters of sine wave.

曲线拟合法能够精确地提取正弦信号的四个参数.

This paper presents a new precise evaluation method for time base and trigger characteristics of digital storage oscilloscope. By using sine wave curve-fit method, the time-base, the slope of trigger, trigger level, trigger delay, and the trigger jitter have been evaluated accurately.

本文提出了一种数字存储示波器时基和触发特性的精确评价方法，通过使用正弦波拟合法，其时基准确度、触发沿斜率、触发电平不确定度、触发延时误差以及触发沿晃动被精确评价；

Let's now examine the simplest wave from where the profile is a sine or cosine curve.

现在让我们来考察最简单的波形,它的剖面图是正弦或余弦曲线.