信道间隔

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。

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 .

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。

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

针对我国航空通信中VHF（VeryHighFrequency）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。

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 .

根据ITU-T建议的DWDM最小信道间隔标准，定量分析了DWDM传输系统的信道串扰与信道间隔及与信道带宽的关系。

Based on the minimum channel interval specification recommended by ITU T , the relations between channel crosstalk , channel interval and channel bandwidth in DWDM transmission system are quantitatively analyzed .

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。

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 .

在此基础上，研究色散平坦光纤中4×10Gb／sDWDM系统的偏振模色散特性，并且进一步研究了偏振模色散对不同信道间隔的4×10Gb／sDWDM系统的影响。

The characteristics of polarization mode dispersion in 4 + 10Gb / sDWDM system in dispersion-flattened fibers is studied .

实验上获得了信道间隔为100GHz的初步实验结果。

The interleaver demonstrates channel spacing of 100 GHz .

具有相当的色散斜度补偿能力；相邻信道间隔度的理论值是无穷大的。

Good dispersion compensation ability and infinite isolation in theoretically .

融熔型窄复用信道间隔波分复用器的研制

Fabrication of Fused Narrow Channel Wavelength Division Multiplexing Fiber Couplers

信道间隔为12.5kHz的集群系统在电力系统中的应用

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

结果表明，相对注入强度越小，信道间隔越大，系统同步的性能越好；

The results show that the system can get better synchronization quality with less relative injection strength and more channel interval .

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。

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

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。

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

公比值随光纤的有效作用距离、总的初始输入光子通量和对应于信道间隔的喇曼增益系数而变化。

The common ratio varies with the effective length and the total input photon fluxes and the Raman gain coefficient of the channel separation .

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。

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

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。

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 .

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。

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 .

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。

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 .

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。

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 .

MIMO水声信道分数间隔自适应均衡的研究

Analysis of adaptive equalizer of MIMO channels with fractionally-spaced in underwater acoustic communication

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。

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 .

设计了一种新颖的60km色散补偿8信道50GHz信道间隔的啁啾光纤Bragg光栅（CFBG）梳状滤波器。

A novel chirped fiber Bragg grating ( CFBG ) comb filter for eight-channel 50 GHz DWDM-channel separations and 60 km dispersion compensation was proposed .

非周期扩频的同步CDMA系统下行信道的分数阶间隔信道估计

Fractionally Spaced Channel Estimation for Synchronous DS-CDMA Downlink with Aperiodic Spreading Code

TD-SCDMA物理层的传输信道以传输时间间隔为单位接收数据，经过信道编码与复用的处理将数据映射到物理信道发送。

Physical layer of TD-SCDMA could receive data by the unit of transmission time interval .

该文提出一种应用于非周期扩频的同步CDMA系统的下行信道的分数阶间隔信道估计的算法。

An algorithm for fractionally spaced channel estimation of a synchronous CDMA system is proposed that uses aperiodic spreading code .

DWDM传输系统信道串扰与信道间隔及信道带宽的关系

Relations between channel crosstalk and channel interval and channel bandwidth in DWDM transmission system

提出一种应用于非周期扩频的CDMA系统下行信道的分数阶间隔信道估计算法，以及在信道估计结果基础上得到的均衡算法。

In the paper , fractionally spaced channel estimation and equalization algorithms are proposed for a synchronous CDMA system that uses aperiodic spreading code .

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；

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

然后，研究了基于信道估计的分数间隔判决反馈均衡器，其性能优于一般的基于LS准则的自适应递归算法和基于信道估计的波特间隔判决反馈均衡器，而且计算复杂度较低。

Secondly , fractionally spaced decision feedback equalizer via channel identification algorithm is investigated with significantly improved performance compared with the recursive algorithm based on LS criterion and symbol spaced decision feedback equalizer via channel identification , and has low complexity .

它把信道时间分成固定间隔的时隙。

It divides channel into fixed distant time intervals .