微机控制测量系统中数字滤波器设计

在传统数字滤波器算法的基础上,本文论述了微机控制测量系统滤除高频随机干扰时新的数字滤波器的设计思路和设计算法,该数字滤波方法是利用测量误差理论中的肖维勒准则来剔除异常干扰值,用以削弱高频随机干扰尖脉冲。仿真表明,本方法优于传统的去除最大、最小值的平均值方法,是一个较为理想的测量系统滤波方法,有应用和研究价值。

Design of digital filter in the measuring system

The design step and mentality of wave filter are proposed when the system for eliminating high frequency random interference, and digital filter method used for weakening high frequency random disturbing pulse in the measurement system is discussed in this paper. The method uses Chauvenel criteria in the theory of measurement error to eliminate the abnormal interference values. The imitation shows that this method surpasses the mean value method, which removes the maximum and the minimum value, the result is satisfactory and available.