centre frequency 中间频率
mean carrier frequency centre difference 平均中心差分
centre frequency error 中心频率偏差
centre frequency offset 中心频率偏差
centre carrier frequency 载波中心频率
audio centre frequency 伴音中心频率
octave centre frequency 八音度中心频率
Two parameters are used to specify the characteristics of a BPF: passband centre frequency and resonance bandwidth.
带通滤波器的特性通过两个参数表示：带通中心频率和共鸣带宽。
It is shown experimentally that a method available for compensating for the diffraction by centre frequency in narrow band filters can effectively improve their stopband characteristics.
本文介绍适用于窄带滤波器的中心频率衍射补偿方法。实验表明，此方法可以有效地改善滤波器的阻带特性。
Furthermore, the influences of SAWF center frequency are display by the curves, as a result, this cutting error have a kind of influences on centre frequency of SAWF.
计算结果表明，这种切割误差对声表面波滤波器中心频率有一定影响。
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