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Supercontinuum with an ultra-broad bandwidth of 380 nm to 1750 nm was generated by injecting 250 kHz, 200 fs optical pulses produced from a regeneratively amplified Ti:sapphire laser into a 2.5 m-long polarization-maintaining photonic crystal fiber.

在800 mW的输入功率下得到了超连续谱的输出功率为60 mW；采用钛宝石放大器泵浦保偏PCF得到了谱宽为380 nm-1750 nm的超连续谱，带宽超过了两个倍频程。

To obtain efficient survivability, this paper presents a novel restorable lightpath selection algorithm based on the automatically switched optical network frame. A numerical simulation is made in term of this routing selection algorithm. The result shows that the traffic has an obvious balancing trend; the block probability of connection requests has been reduced. At the same time, this algorithm has an excellent performance on bandwidth utility and sharing of the restoration resources.

摘要为了获得高效的网络生存性能，基于自动交换光网络的框架，该文提出了一种新型的可恢复路径选择算法-联合可变权重可恢复路径选择算法，并进行了数值仿真分析，仿真结果表明，此恢复路径选择算法具有明显的业务量均衡能力，并降低了动态连接请求的阻塞概率，同时具有良好的带宽利用率和恢复资源共享效率。

In anFDD wireless system, the duplex spacing between uplink and downlink islarger than the coherence bandwidth of the mobile radio channel, thus theuplink and the downlink small-scale fading is uncorrelated. Moreover, thearray response is correlated with the frequency of the signal carrier. So it isimpossible to resue the uplink weights for downlink beamforming. As aresult, the application of smart antenna for the downlink is a difficult problem.

在频分双工系统中，由于上、下行载波的频率差大于相干频带，上、下行信道衰落是不相关的，而且阵列响应也与信号的载波频率有关，因此，上行信道不能直接用来估计下行信道，故智能天线应用于下行链路是一个难点。

Ricker wavelet whose predominant frequency is 200Hz was chosen as the exciting wave, and the character parameters (predominant amplitude, predominant frequency and frequency bandwidth) of its reflected wave were calculated.

选择主频为200Hz的雷克子波，理论计算原始地震反射波的特征参数（主振幅、主频率、频带宽度）。

The simulation analysis has indicated that the bandwidth of ridged waveguide slot array has been greatly improved, and it is consistent with the result of thoery.

仿真分析表明脊波导裂缝阵列的带宽有较大的改善，这与理论分析的结果是一致的。

We can also achieve many other new SAs by extending ISP. These new SAs include a multicast algorithm—EISP, a priority algorithm—OSP, which supports DiffServ, and a bandwidth reservation algorithm—RISP, which supports IntServ.

通过对ISP算法进行扩展，本文又提出了支持组播的EISP算法、支持区分服务／优先级调度的OSP算法和支持集成服务／带宽预约的RISP算法。

This method is simple, practical, and the redundant degree of data in the network could be decreased to a great extent. Samely, it could save storage resources and bandwidth occupation of the network.

该方法简单、实用，大大降低了整个网络内的数据冗余度，节省了大量的存储资源和网络带宽。

This device allows dynamic provisioning settable in 1 GHz increments for both the center wavelength and bandwidth of the filter.

该设备允许进行动态配置，中心波长和滤波器的带宽可设定为1Ghz 的增量。

Results show that the YBCO high temperature superconductive light detector, which works under the temperature of liquid nitrogen, has properties of fast response, high sensibility, good wide bandwidth and good stability.

实验表明，在液氮温度下工作的YBCO高温超导光探测器不仅具有快速响应、较高灵敏度的特点，而且具有良好的宽带特性和较好的稳定性。

Kinds of coding mode was researched and the MPEG-4 which transmit the video with the given bandwidth syllabify was selected to the system.

研究了多种视频编码方式，比较其优劣，并选择出适合本系统的MPEG-4编码标准，利用了有效的带宽传输了清晰的视频流。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。