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- Firstly, the structure and output spectrum of DDS is analyzed. 首先分析了DDS的原理、输出频谱的特性。
- The Collins formula and tensor ABCD law in spatial frequency domain provide the relation between the input spatial Fourier spectrum and the output spectrum directly. 空间频率域中的柯林斯公式和张量ABCD定律直接给出了像散光束的空间傅里叶频谱的传输规律。
- We fabricated two kinds of PhC micro-cavity: D1 and D2, and investigated the L-I curve, output spectrum, coupled efficiency and Q factor of D1 and D2. 我们制作两种不同的微共振腔D1、D2，比较雷射的L-I曲线、输出频谱、耦合效率与Q值。
- Non-uniform well-thickness multi-quantum wells (MQWs) materials were adopted to widen the output spectrum of superluminescent diodes (SLDs). 为提高半导体超辐射发光管的光谱宽度,采用非均匀阱宽多量子阱(MQW)材料拓宽超辐射器件的输出光谱。
- In this paper, the relationship between the output spectrum of a direct digital signal synthesizing system and the DFT of the corresponding waveform sequence is analyzed. 在利用直接数字式合成方法产生周期信号时,信号的频率分辨率和带宽直接受限于合成系统的工作频率和存储容量。
- The superiority of the method is the pectinate filter characteristic, that is, the power ratio of the two output arms changes fast with the Bragg wavelength while in the rising or falling edge of the output spectrum. 该方法主要是基于 MZ 干涉仪的梳状滤波特性,即在输出光谱的上升或下降沿两输出臂的功率比值随波长变化很快,通过调整干涉仪臂长差,得到具有陡峭边沿的滤波器。
- The PLL (phase lock loop) is realized by form of charge pump, its loop filter is passive two-order LPF. Compared to other form of active filter, this CP PLL has less noise, which does some good to its output spectrum. 微波锁相环采用电荷泵的形式,其环路滤波器为无源二阶低通滤波器,相比采用有源滤波器的锁相环,它不会附加有源噪声,而且滤波器结构简单,便于调试。
- Two different structures of waveguide interference filters are investigated and the output spectrum of a two-cavity structure with 27 periodic layers and the field distributions of a single-cavity structure are calculated. 根据这种方法优化设计了两种波导干涉滤波器单元器件,并且以27层开放式波导干涉滤波器双腔结构为例,计算了垂直入射时的输出光谱和单腔结构滤波后的场强分布。
- A Novel Interleaver with Different Output Spectrum Bandwidth 一种不等带宽光学梳状滤波器
- Hard copy is computer output on paper, printing or graphics. 硬拷贝是出现在纸上、印刷上或图表上的电脑输出。
- Effect on Output Spectrum of DDS in Presence of Phase Truncation 相位舍位对DDS谱分布的影响
- The average output of the factory is 20 cars a day. 该工厂的平均产量是每天20辆汽车。
- Abstract: Based upon instantaneous output spectra of xenon flashlamp, a unique dynamic modeling program has been constructed to predict the gain performance of multisegment Nd: glass laser amplifiers. 摘 要： 运用随时间变化的氙灯辐射光谱模型，建立了组合式钕玻璃片状激光放大器动态增益特性的模拟程序，实现了从氙灯放电到引出激光的全过程动态模拟。
- Keywords: F-P semiconductor laser micromachining output spectrum; 关键词:F-P半导体激光器微加工输出光谱;
- The survey covered a broad spectrum of topic. 这本简史涉及的话题范围很广。
- This country ranks last in industrial output. 这个国家的工业生产排名最後。
- As a result, daily output has doubled. 结果日产量翻了一番。
- OPEC freezes output, sees prices easing. 石油输出国家组织冻结石油输出，价格看涨。
- Our grain output will be3.7 times that of1960. 我们的粮食产量将是1960年的3。7倍。
- Output picked up again in the following year. 第二年产量又开始上升了。
