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提出了一个在线实时估计中值频率的算法．这个算法是建立在通过控制采样频率实现截止频率可调的数字滤波器的基础上．为检验算法的有效性，文中给出了输入试验信号测试结果．
An online real-time algorithm for estimating the median frequency is proposed. The algorithm is based on a digital filter with adjustable cutoff frequency by controlling the sampling frequency. In order to test the validity of the algorithm, the input test signal test results are given in this paper.