By analysis it is shown that the maximal modulation sensitivity comes from an appropriate end reflection coefficients of OWFPM for a certain light source spectrum width.
由分析得到,对于确定的光源光谱宽度,波导端面反射率只有取合适的值,才能取得最灵敏的调制效果。
We can monitor many parameters and characteristics by measuring TEN, such as surge frequency, spectrum width, threshold current, mode jump and stability of output light power.
通过对激光的电噪声的测量可以监测激光器的诸多参数和特性,如弛豫频率,谱线宽度,阈值电流,模式跳变及输出光功率是否稳定等。
Fixing the spectrum width of the weather echo signals, we change theirs mean Doppler frequency and filter them using regression filter. After filtering, we analyze the attenuation of them.
在天气回波信号谱宽固定的情况下,通过改变天气回波信号的平均多普勒频率,分析了回归滤波器对它的衰减情况。
Meanwhile, some special problems, such as test materials, spectrum band width (SBW), wavelength reproducibility, and expressing method of photo-metric accuracy, ard discussed.
根据实践,对与光度准确度测试有关的几个问题,例如:测试材料、光谱带宽、波长重复性等,进行了初步讨论。
The spectrum was found to be an exponential decay followed by a stretched exponential decay, with a decreasing width parameter.
发现其动态光散射谱在初始的指数衰减之后是伸展指数衰减。
The frequency spectrum and characteristics of pulse interval and width modulation (PIWM) are derived in detail.
推导了非同步型脉冲间隔与宽度双重调制(P I W M)的频谱及其特点。
The relationship between spectrum band width and absorbance error was discussed.
研究了光谱带宽与分析测试误差的关系。
This article by the actual result, introduced the changing of spectrum band width to the spectrum luminosity test affect.
本文以实测结果,介绍了光谱带宽变化对光谱光度测量的影响。
But as the well width increase, level filling is the main reason for the red-shift of spectrum, Auger recombination and carrier delocalization are the main reason for lower efficiency.
当阱宽较大时,能级填充是导致光谱红移的主要原因,俄歇复合与载流子离域是导致效率下降的主要原因。
With the increase of the periods and the absolute value of refractive index difference, the full width at half maximum of spectrum decreases.
介质折射率差的绝对值越大、周期数增加都使透射波谱宽度变窄。
By using laser Raman spectrum method, the samples full width at half maximum (FWHM) and depolarization ratio of laser Raman spectrum at stretching vibration were measured.
运用激光喇曼光谱的分析方法,测量了它们的激光喇曼谱在伸缩振动喇曼峰处的半峰全宽,同时也测量了样品在伸缩振动喇曼峰处的退偏振度。
The Du-conversion is one that converse the signal from time domain to gate-width domain and uses the wide spectrum density of the signal to show its characteristics.
杜氏变换是一种将信号从时域到门宽域的变换,用信号的宽谱密度来描述信号的特征。
By laser Raman spectrum method, the samples' full width at half maximum (FWHM) and depolarization ratio of laser Raman spectrum at stretching vibration were measured.
运用激光拉曼光谱的分析方法,测量了它们的激光拉曼谱在伸缩振动拉曼峰处的半峰全宽,同时也测量了样品在伸缩振动拉曼峰处的退偏振度。
Cyclic period chat spectrum estimation is used on parameters estimation such as carrier frequency, chip width and amplitude.
参数估计主要对直扩信号的载频、码片时宽和幅度进行了估计。
Compared with the case of positive refractive index structural defects, the influence of the interaction between defects on defect modes is stronger, the spectrum-width of defect mode is broader.
与正折射率缺陷情形相比较,负折射率缺陷间的相互作用对缺陷模的影响更大,局域模谱线更宽。
But the resolving power of radar is in inverse proportion to the pulse-width. The pulse is the narrower in width , then the wider frequency spectrum is, it is the more accurate to find range.
但作用距离的分辨率却与发射脉宽成反比,脉冲宽度越窄,则频谱越宽,测距越精确。
The band width of the radio-frequency signal for the spread spectrum communication can be spreaded to several times or even thousands of times the band width of the information signal.
扩频通信的射频信号频带宽度,可扩展到信息信号频带宽度的数倍乃至数千倍。
Good wave spectrum lines only could be acquired with all those techniques which ensure the value of full width at half maxium to be within the given range of the system.
只有尽一切技术手段使得半高宽在系统提示的范围之内,才有可能获得好的谱线。
Good wave spectrum lines only could be acquired with all those techniques which ensure the value of full width at half maxium to be within the given range of the system.
只有尽一切技术手段使得半高宽在系统提示的范围之内,才有可能获得好的谱线。
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