描述
程序判断滤波适用于对采样信号因受到随机干扰或传感器不稳定而引起的失真进行滤波。设计时根据经验确定两次采样允许的最大偏差,若先后两次采样的信号差值大于偏差,表明输入是干扰信号,应去掉,用上次采样值作为本次采样值。若差值不大于偏差,则本次采样值有效。
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