Phase derivative variance map 相位导数方差图
phase-derivative 相位微分
phase derivative 位相梯度法
phase derivative FFT 相位微商快速傅里叶变换
phase-derivative standard deviation 相位导数标准偏差
Derivative of Chitosan oligosaccharide C60 was synthesized in heterogeneous phase alkalescent system.
在非均相碱性体系中，合成了C60 -低聚壳聚糖衍生物。
The auditory perception effect of the reconstructed speech is mainly dependent on the amplitude of the derivative of the additive phase with respect to frequency.
重建语音的听觉感知效果主要取决于附加相位对频率的导数的起伏幅度。
A novel way is suggested to narrow the bandwidth of a Fabry-Perot (FP) cavity through increasing the derivative of one round-trip phase shift with respect to the frequency.
本文提出用增加腔的环程相移对频率的倒数的方法来获得窄带宽。
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