channel spacing

Numerical simulation on flow and heat transfer in rotating channel with small spacing pin-fin arrays

旋转对小间距扰流柱通道内的流动换热影响

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However, in previously reported work with these holographic devices the diffraction efficiency and wavelength selectivity were not so satisfactory, which affected the insertion loss and channel spacing of the device respectively.

但是目前已报导的工作中还存在着衍射效率不高、选择性差等问题，它们分别影响着器件的插入损耗和通道间隔。

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Considering the shortage of VHF ( Very High Frequency) radio frequencies in aeronautical telecommunication in China, a method of decreasing channel spacing from 25 kHz to 8.33 kHz is presented.

针对我国航空通信中VHF（Very High Frequency）频率资源紧张的现状，提出将信道间隔从25kHz减小到8.33kHz的解决方法。

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The results show that FWM, XMP and SRS respectively take different effect under the different channel numbers and spacing;

结果表明，在信道数和信道间隔不同时，FWM、XPM和SRS分别起不同作用；

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A realization method of a multi-channel filter based on large channel spacing linear chirped fiber grating has been presented, which applies amplitude and phase samplings and is based on rectangle function sampling form without apodization.

提出了一种基于光纤光栅大信道间隔的多信道滤波器实现方法，采用了振幅采样结合相位采样的线性啁啾光纤光栅，基于矩形函数的采样形式，不需要作单个采样的切趾。

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A grating multiplexer and a grating demultiplexer with a channel spacing of 2 nm and a capacity of 18 channels are employed in the system.

系统使用了具有18个频道的能力且频道间隔为2nm的光栅合、分波器，作为波分复用和解复用器。

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At the same time, the impact of radiation are considered, and channel spacing, PCB board enclosure thermal conductivity and other factors on the impact of multi-channel which considered radiation, and compared the temperature difference inside the channel with radiation and without radiation.

并且引入辐射的影响，分析通道间距、PCB板的导热等因素对封闭腔内多通道辐射作用的影响，比较了考虑辐射和未考虑辐射时通道内的温差。

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The results show that different antenna array structures affect the ccdfs differently in LOS indoor environments and the less antenna spacing is, the more capacities change of the MIMO channel will be.

结果表明视距的室内传播环境中不同的天线阵列结构对MIMO系统容量ccdfs有不同的影响，而且天线间隔越小，影响越显著。

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An 8 × 8 silica-based arrayed waveguide grating ( AWG) with the central wavelength of 1.55 μ m and the channel spacing of 0.8 nm is designed and fabricated.

在Si基SiO2材料上设计并制作了中心波长为1.55μm、通道间隔为0.8nm的8×8阵列波导光栅（AWG）。

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In order to increase the bandwidth of tunable fiber laser, a large channel spacing and bandwidth multi-channel filter with same reflection peak is required.

为了增加可调谐光纤激光器的调谐带宽，需要一种具有大信道间隔、大的总带宽、各信道的峰值反射率在带内保持均匀而在带外迅速下降的多信道滤波器。

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Chirped sampled fiber Bragg grating ( CSFBG) can be used for multi-channel dispersion compensator. The multiple-phase-shift ( MPS) technique, in which multiple phase shifts are introduced in sampled fiber gratings can reduce the channel spacing and increase the number of wavelength channels.

取样啁瞅光栅（CSFBG）可以实现对多个倌道进行色散补偿，在取样光栅中插入多相移（MPS）可以减小信道间隔，密集倌道数目。

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The wider channel spacing is realized by circulating the odd-order Stokes signals in the Brillouin gain medium through a four-port circulator.

由于奇数阶斯托克信号通过一个四端口环形器中在布里渊增益介质中循环，实现了更宽的信道间隔。

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Channel Spacing Assignment and Crosstalk Analysis of Optical Fiber Frequency-Division-Multiplexed Communication Systems

光频分复用光纤通信系统的频道布置及串扰分析

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Development of Fiber Interleave Filter with 50 GHz Channel Spacing

50GHz光纤梳状滤波器的研制

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Any channel spacing fiber grating can be realized in one phase mask by this method.

用所提出方法可以实现一块模板设计任意信道间隔的光纤光栅。

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The interleaver demonstrates channel spacing of 100 GHz.

实验上获得了信道间隔为100GHz的初步实验结果。

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The simulation results show that the channel capacity will change as a function of the elements spacing. The impacts of the element spacing and spread angular on the channel capacity are different in Uncorrelated High Rank ( UHR) and Uncorrelated Low Rank ( ULR) models.

试验结果表明，信道容量随天线阵元间距变化的曲线、天线阵元间距和散射角度扩展的变化对UHR模型和ULR模型的信道容量的影响不同。

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Considering the AWG on SOI we analyze how to reduce its polarization insensitive by using special waveguide structure. We also calculate a 16 channel, 0.8 nm spacing AWG demultiplexer. The results show that the polarization insensitive is less than 0.06 nm.

本文针对SOI材料的阵列波导光栅，分析了如何采用特殊的波导结构来减小它的偏振相关性，并对16通道、间隔为0.8nm的AWG解复用器进行了计算，结果表明其偏振敏感性低于0.06nm。

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A novel scheme is proposed, in which the aberrations in the off-axis holographic lenses used as demultiplexers are reduced to a low enough level for relatively small channel spacing.

本文提出了一种能够将解复用器用离轴全息透镜的像差减小到足以适用于相对较小的信道间隔的新方案。

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The relationships among the threshold power, channel numbers, channel spacing and the cascaded EDFA numbers under the influence of fiber nonlinear-effects are obtained in condition with the equal spacing channel.

在信道间隔相等的条件下，得出了光纤非线性响应影响下的阈值功率、信道数、信道间隔和EDFA级联数等之间的关系。

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For SCM/ WDM optical fiber communication systems, nonlinear interference between subcarrier channels is severe because channel spacing is very narrow.

在SCM/WDM光纤通信系统中由于各相邻射频信号的信道间隔非常窄，因而光纤的非线性效应对系统的影响很严重。

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For SCM/ WDM system, the nonlinear interference between subcarrier channels is severe because the channel spacing is very narrow and the interference components fall into the signal frequencies.

在SCM/WDM光纤通信系统中，由于相邻光波信道的间隔非常窄，所以相邻光波信道间的非线性效应很严重而且产生的干扰信号会落入有用信号的信道内形成寄生干扰。

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The applicaton of trunked communication system with channel spacing of 1.25 kHz in power system

信道间隔为12.5kHz的集群系统在电力系统中的应用

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The results show that the effect of high frequency pump noise is greater than the low frequency ones, moreover, the consumption and fluctuation of pump powers will make the performance of the system with larger channel spacing degrade further.

研究结果表明，相对于低频泵浦噪声，高频泵浦噪声对系统性能的影响更大一些，并且泵浦的损耗和波动可以使信道间隔大的系统性能进一步恶化。

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The results show that the filter has many advantages such as insensitive to temperature, wide wavelength span, tunable channel spacing and so on.

分析结果表明，该滤波器具有温度不敏感、工作波长范围宽、信道间隔可调谐的优点。

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With the Fourier series method and the Fourier transform method, results and conclusions which describe the peak wavelengths or the channel spacing are derived. The transfer matrix method is then adopted to verify the derived results or conclusions.

运用Fourier级数法、Fourier变换法推导得到信道中心波长、滤波信道间隔的理论结论，再用传输矩阵法数值验证结论的正确性。

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The relation between channel spacing and effect of XPM and FWM in DWDM system was analyzed, and a new solution for simulation of high speed and long haul DWDM system was derived.

本文分析了DWDM系统中XPM和FWM效应随信道间距变化的关系，并提出了大容量长距离DWDM系统仿真的解决方案。

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