传感器测得信号经过操作系统处理,最终得到数据,而这些数据往往是一些离散的样点,这就要求作出一条光滑曲线,使其通过或尽可能地靠近这些样点。在实践中,则需要在计算机的协助下,用数学方法自动进行,以往采用的方法多为多项式 The signals measured by the sensor are processed by the operating system to eventually get the data, which tends to be discrete samples, which requires a smooth curve to pass through or as close as possible to these samples. In practice, you need to use the computer with the help of mathematical methods automatically, the method used in the past mostly polynomial