全波傅氏算法是基于周期信号推导出来的,当采样信号中含有衰减直流分量时,将会产生误差。
The decaying DC component in the sampling signal will bring errors to the full-wave Fourier algorithm, which is derived with periodic signal.
在线型固定衰减器采用全光纤结构,性能稳定可靠。
Line - type fixed attenuator using all fiber structure, stable and reliable performance.
介绍一个二能级原子在全带隙光子晶体带边附近的衰减动力学行为。
The characteristics of the decay kinetics of a two-level atom near the band edges of photonic crystals with absolute gaps are analyzed.
例如,总是需要的过滤器,以对带外的信号鉴别和衰减下来,以非常低的水平,同时保持全功率在感兴趣的频带。
For example, filters are always needed to discriminate against out-of-band signals and attenuate them down to very low levels while preserving full power in the bands of interest.
单分子灵敏度是通过全内反射荧光显微镜(TIRF)实现的,用一个精心设计的激光产生快速衰减的倏逝波。
Single molecule sensitivity is achieved through total internal reflectance fluorescence (TIRF) microscopy, in which a precisely angled laser generates a fast-decaying, evanescent wave.
通常全合成机油不含粘度指数改进剂所以添加剂衰减情况轻。
Generally, the synthetic oils do not have VI improvers so have less to lose.
采用时间增益补偿技术,补偿超声波在空气中的衰减,减少回波信号的起伏;由有源全波整流电路和微分电路等组成峰值时间检测电路,可正确检测回波的峰值到达时间。
The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.
采用时间增益补偿技术,补偿超声波在空气中的衰减,减少回波信号的起伏;由有源全波整流电路和微分电路等组成峰值时间检测电路,可正确检测回波的峰值到达时间。
The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.
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