This new method reduces the influence of time response of Fourier filtering on frequency measurement and improves the accuracy of transient frequency measurement.
新的算法有效地补偿了富氏滤波的时间响应对频率测量造成的影响，提高了算法的暂态测频精度。其程序和计算非常简单。
Considering the characteristic of filtering error which occur mutation when there is a transient signal, the met.
根据暂态时滤波误差发生突变的特征，提出误差比阈值法判断暂态过程的起止时间。
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