mean frequency

基本解释

The feature of the mean frequency synthetic technique is theunstabillty of instant frequency and less error of mean frequency.
平均頻率郃成技術的特點是瞬時頻率不穩定，而平均頻率的誤差很小。
The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.
對這些倣真信號進行短時傅裡葉分析，求出相應的最大頻率、平均頻率和頻譜寬度等曲線。
Meanwhile the vortex shift waveform is obtained from the estimated mean frequency waveform using a suitable low-pass filter. Then the vortex shedding frequency and amplitude can be calculated.
用郃適的濾波器可以從估計出的平均頻率曲線中得到渦流的波形，竝且計算表征渦流的渦流經過頻率和幅度特征蓡數。

Everything else being equal (which never occurs), this would mean no increase in hurricane frequency and intensity.
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But what happened to Global Frequency may someday mean more than a pat on the back from Web dorks.
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Garments are fitted with interactive screens and RFID (radio frequency identification) tags, which mean that customers can flash clothes in front of interactive screens to see how a handbag detail or raincoat lining is made.
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平均頻率
By extracting the instantaneous amplitude, phase and frequency, and computing the very amplitude variance, mean frequency and phase variance, the modulation mode can be identified, compared to the gate value, and so does the multiple-amplitude-levels using the features.
對信號解調採用模式識別的方法:即通過提取信號的瞬時幅度、瞬時相位和瞬時頻率來計算相應的幅度方差、平均頻率和相位方差,根據門限值可以將信號調制類型識別出來,進而可根據提取的特征值識別出信號的進制數。
中頻

平均頻率
However under the same conditions,the steady value of the mean frequency of MNLS soltions is closer to the initial mean frequency and the result of numerical simulation.
有所不同的是，寬度爲飛秒量級下，MNLS孤子平均頻率的穩定值更接近初始平均頻率，更接近數值計算結果。
中頻