• An example of L-band amplifier is given.

    文中还给L波段放大器实例

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  • We proved that C-band seed light can promote L-band EDFA's pump conversion efficiency.

    实验证实,加入C带种籽L放大器泵浦转换效率可以有较大的提高

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  • Also a design example of wideband low-IF radar receiver application in L-band radar is put forth.

    该文还给出了一部应用L波段宽带中频雷达接收机设计实例

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  • In this paper, a low profile, L-band printed dipole element antenna with broad bandwidth is developed.

    本文介绍一种剖面L波段宽带印刷振子天线单元

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  • In order to develop the application of mobile phone TV in Shanghai, we adopt L-band for T-DMB trial in Shanghai.

    为了上海开展手机电视业务,选用L波段在上海市区进行T -DMB标准的覆盖试验

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  • For the increase of wavelength for the DWDM system, we find that it is necessary to expand the C-band to the L-band even to S-band.

    随着DWDM系统波长要求增加传统c波段已经不能满足通信系统的需要波长扩展l波段甚至s波段成为必然的趋势。

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  • The L-band secondary windfinding radar is the new generation of 701 windfinding radar, it is more advanced and automatic than ever.

    L波段二次雷达701型测风雷达更新换代产品,701测风雷达相比技术更为先进自动化程度更高。

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  • Experiments demonstrate that L-band EDFA will achieve high flat gain by employing a gain flat filter based on fiber loop mirror (FLM).

    使用光纤环形镜(FLM)作为增益平坦滤波器进行L波段掺铒光纤放大器的增益平坦化实验实现了高增益值的平坦输出。

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  • The L-band secondary windfinding radar and the L-band wind profiler are the most essential equipments of the windfinding systems currently.

    波段二次雷达和风线雷达目前两种主要测风手段。

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  • This paper gives four models to simulate effects of phase fluctuation, refraction and amplitude scintillation due to ionosphere on L-band ISAR.

    论文针对L波段ISAR,通过四个数学模型仿真电离层引起目标回波相位起伏折射效应以及回波幅度闪烁ISAR图像的影响

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  • Accuracy of the algorithm is examined, and some Monte-Carlo simulation is performed for L-band microwaves scattered by wind-driven ocean surfaces.

    这种算法精度问题进行分析,后对海洋表面散射进行模拟

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  • The effectiveness of this method is demonstrated using an L-band fully polarimetric SAR image of San Francisco, acquired by the NASA/JPL AIRSAR sensor.

    JPL实验室AIRSAR系统获取L波段旧金山极化SAR数据实验结果验证了该文方法有效性

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  • The TESLA positron injector linac with a L-band TW normal conducting structure has been studied, which offers both higher shunt impedance and larger aperture.

    TESLA行波正电子注入器采用L波段常温加速结构同时具有高分路阻抗孔径的优点。

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  • Using the method and formula above, a L-band synthesizer has been finished. It has satisfactory performance on phase noise, frequency jump speed and spur rejection.

    相位噪声、调频速度杂散抑制等方面性能指标较高

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  • Then L-band fiber laser is discussed in detail. Factors that influenced the output of laser, such as resonance length, erbium-doped length are analyzed theoretically.

    进而L波段光纤激光器进行深入探讨,并分析了影响激光器输出因素谐振腔、掺光纤长度,且做了相应的理论分析。

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  • In this paper, taking L-band as the core, a design Compatible Multi-band Up-converter for radio frequency is introduced, and the real circuit is accomplished and tested.

    L波段为主,论述设计兼容波段变频器,并且完成实际电路的制作调试。

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  • Even though the window at L-band is the best choice for salinity remote sensing, the sensitivity of brightness temperature to SSS is lower than that of the other variables.

    盐度被动微波辐射遥感虽然L波段灵敏度最高,但是L波段的灵敏度低于其它许多变量,因此盐度反演模型精度要求很高。

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  • The main components of the ESRI system include a set of L-band ESR spectrometer, the three dimensional gradient magnetic field system and the imaging reconstruction software.

    系统主要L波段ESR谱仪梯度磁场装置、数据处理及图像重建软件组成

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  • The International Telecommunications Union reserves a special radio band in the 1400-1427 MHz range, called the L-band, especially for Earth-observing satellites and space astronomy.

    国际电信联盟保留了1400- 1427MHz范围内特殊无线电频段,亦L -频段,特别地球探测卫星太空天文使用。

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  • The effects of pump ratio and fiber length arrangements on the output characteristics of the L-band SFS in terms of mean wavelength, spectral linewidth, and output power are analyzed.

    分析了比例以及光纤长度分配光源平均波长光谱线宽和输出功率影响

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  • The device can also be configured in universal L-band switch mode for backward compatibility with legacy STBs and with dish alignment measurement equipment typically used by installers.

    设备可以普及L波段开关模式传统机顶盒通常使用安装对准测量设备向后兼容配置

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  • An L-band safety remote control system is introduced which is composed of three stations and one center in order to increase coverage and overcome the limit of earth curvature to intervisibility.

    本文介绍L频段系统中心”组成,三站无线接力方法提高覆盖范围解决地球曲率视的限制

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  • A novel two-stage Er-doped ase broadband light source with two output bands, i. e. C-band and L-band was designed and demonstrated based on the analysis of the principle of the L-band ase spectrum.

    分析L波段放大自发辐射(ase)产生原理基础设计一种新颖双级结构掺光纤ase宽带光源,该光源可两个端口分别输出高功率的C波段L波段的ASE

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  • This paper analyzes some breakdown examples through daily use and maintenance for the L wave band radar, and explores the overhauling methods for the L wave band radar.

    通过L波段雷达使用维护,将其中一些故障个例提取出来进行分析从中探索L波段雷达维修方法

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  • Soon she was being sought out by a jazz band that wanted her to sing standards on the L. A. hotel circuit.

    一家爵士乐队很快找上门来,请洛杉矶各酒店巡演中演唱流行歌曲。

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  • The radiation at L band has a good linear relation with the bright temperature.

    波段微波辐射值和根据辐射理论计算出的亮温值具有好的线性关系

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  • An L-shaped band elimination filter on the T-shaped joint part is also used for restricting the resonance of the frequency multiplication of the first resonance frequency.

    位于T形接合部L滤波器用来抑制第一谐振频率倍频的谐振。

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  • This paper describes the composition of an L - band traveling wave feeding network, and focuses on the design and implementation of its critical component—directional coupler.

    天线单元设计馈电网络设计、天线阵列的设计、波束赋形技术的研究

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  • This paper describes the composition of an L - band traveling wave feeding network, and focuses on the design and implementation of its critical component—directional coupler.

    天线单元设计馈电网络设计、天线阵列的设计、波束赋形技术的研究

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