- 更多网络例句与差频相关的网络例句 [注：此内容来源于网络，仅供参考]
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This beat frequency of light is analogous to two different audio frequencies which combine to produce a third difference frequency.
这个拍频光的是类似于两个不同的音频频率相结合产生的第三差频。
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Using finite difference time domain method, the electromagnetic field distribution of THz wave is simulated in a THz 2D PC splitter and by plane wave expansion method the dispersion relation and defect modes are achieved in a THz rotated PC waveguide.5. A woodpile three-dimensional (3D) PC with face-centered-tetragonal symmetry is one of the most popular 3D PCs because of its favorable band gap characteristics. Based on the woodpile fct lattice structure, we propose a novel woodpile THz lattice structure with comparatively decreased symmetry, better band gap properties and easy fabrication by varying some structure parameters.
计算结果为利用非线性光学差频方法产生THz辐射源的实验研究提供了深入和全面的理论基础；四、利用平面波展开法，通过改变二维THz光子晶体的结构参数，对二维THz光子晶体完全带隙进行了优化，分析出两种适合工作在THz波段的二维光子晶体结构；采用时域有限差分法和平面波展开法，计算出THz波在二维光子晶体"T"型分束波导，45度旋转波导中传输的电磁场分布以及缺陷模；五、Woodpile面心立方四角结构是三维光子晶体中被研究最广泛的结构之一。
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This paper points out that as the peak of the first order wind spectrum situated at a region of very low frequency, the contribution of the sum_frequency part to the second order wind spectrum is no longer negligible.
本文指出，由于风速谱与波浪谱不同，它的能量峰值位于极低频率处，因此二阶风速谱中和频项的贡献不能忽略，为此本文首先导出了保留和频项情况下的二阶风速谱表达式，并将和频项与差频项在数值上作了比较。
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A simple of improving the differential frequency by D flip-flop is introduced. The method is verified by timing analysis. Numberical application conditions are given out. The reason for the error production is analyzed and the maximum error range are calculated.
介绍了D触发器差频的方法和应用条件，用最基础的时序分析的方法，对D触发器差频做一个理论上的验证，定量给出应用条件，并分析了产生误差的原因和最大的误差范围。
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A new way of distance measurement is introduced in this paper, it is similar to traditional measurement way, and has its origination. In the new measurement way, the rough measurement of the distance is realized by countering high frequency pulses filled in discriminable phase pulses. Discriminable phase pulses go through integral circuits, and then are sampled by Analogue Digital Converter, so the accurate measurement of the system is obtained by the sampling value.
本文提出了一种新的测距方法，该方法与常规相位测距仪比较，既有相似之处也有其创新之处，常规相位测距仪一般使用多波长测尺频率组合、差频数字测相的方法，本系统虽然也采用多波长测尺频率组合，但并不采用差频数字测相，该方法摒弃了传统的内外光路的切换方式及电路的混频，粗测采用对鉴相脉冲填充高频脉冲的办法实现，精测则利用鉴相脉冲对积分电路进行积分，然后由ADC 对积分电平进行转换，通过对ADC 的输出值的计算处理实现精测。
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Developed two computer software namedSEMA and MMEA, which can calculate the single line mooring force and thestiffness matrix of the whole mooring system. And use these softwares to compute theforce-excursion relationship of a four lines moored Spar platform in different intialhorizontal force conditions, shown the influences of the intial horizontal force to themooring stiffness. 3. The Spar can be simplified as a large diameter, truncated cylinder, we focus onthe diffraction problem in bichromatic incident waves, and the boundary integralequation method is applied.
按照上述理论和方法编制了计算单根系泊索系泊力的SEMA程序和计算系泊刚度的MMEA程序，并利用这两套程序，在不同预张力的初始条件下，对一座四索系泊Spar平台的系泊系统进行了分析，揭示了Spar平台整体系泊力随位移变化的规律， 3、将Spar平台主体简化为大尺度的直立浮动圆柱体，对双频入射波作用下平台主体的绕射问题进行了深入的理论研究，并且采用边界积分方程法，对二阶差频波浪力进行了求解。
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Based on solving the coupler mode equarions of PPLN wavelength converter, the scheme of controlling the PPLN wavelength converter using electrooptical effect is proposed for the first time.
分析了PPLN波导中基于级联倍频与差频全光波长变换特性，在模拟求解PPLN倍频耦合波方程的基础上，提出了这种器件的电光调控方案，并首次论证了作为电光开关的可能性。
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Secondly, the paper has carried on the analysis to the millimeter wave blasting fuse near field target characteristic, and has produced a RCS measuring technique. The analysis is that non- atmosphere window triangle wave modulation millimeter wave blasting fuse slip frequency spectrum, which has completed under the triangle wave modulation slip frequency signal time domain and the frequency range analysis.
随后对毫米波引信近场目标特性进行了分析，并给出了一种RCS的测量方法，并系统分析了非大气窗口三角波调制毫米波引信的差频频谱，完成了三角波调制下的差频信号时域和频域分析。
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By the import of indirect differential frequences conception, numeric differential frequences method with improves the absolute measurement distance 1 times is present.
通过将间接差频测距概念引入连续光源三维成像系统，提出了数值差频三维测距法，将绝对测距量程提高到原来的3倍。
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This paper mainly analyses dispersion frequency signals time and frequency property of triangle wave modulation. Real 5mm dispersion frequency signal is collected. The theory data and real data are compared and analyzed. It shows 5mm radar forepart is practicable, it also supplies theory base to design back signal processing circuit.
主要完成了三角波调频体制下的差频信号在时域和频域两方面的特性分析，并采集了5mm波段实际的三角波调制差频波形，通过将理论值与实测值的比较分析，表明5mm样机前端部分的可靠性，为后面的信号处理电路设计作准备。
- 更多网络解释与差频相关的网络解释 [注：此内容来源于网络，仅供参考]
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beat frequency：差频
一、简介 液晶显示器的背光源有两种,一种是以发光二极体 (LED)作为显示器的背光而且无法同步驱动功率开关,形成电路的差频(beat frequency)现象,导致电磁干扰光方面,采用断续脉波型(burst m ode)的调光方法,其主要系采用固定频率与固定
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beat frequency：差频,拍频
beat counter 差频式计数器 | beat frequency 差频,拍频 | beat frequency electrotherapy unit 差频电疗机
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beat frequency oscillator：差频振荡器
beat frequency electrotherapy unit 差频电疗机 | beat frequency oscillator 差频振荡器 | bed cage 床上护架
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beat frequency detector：拍频检波器,差频检波器
beat frequency 拍频[频] | beat frequency detector 拍频检波器,差频检波器 | beat frequency interferometry 拍频干涉测 量学
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beat frequency detector：频差检测器
beat back 驶回 | beat frequency detector 频差检测器 | beat frequency oscillator 差频振荡器
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beat frequency meter：差频频率计
beat frequency detector 拍频检波器 | beat frequency meter 差频频率计 | beat frequency oscillator 拍频振荡器
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beat frequency meter：差频计
beat frequency meter 差频测试计,差频频率计 | beat-frequency meter 差频计 | beat frequency oscillator 差频振荡器
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beat frequency meter：差频测试计,差频频率计
beat frequency detector 拍频检波器 | beat frequency meter 差频测试计,差频频率计 | beat-frequency meter 差频计
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difference frequency instantaneous power：差频瞬时功率
difference frequency fluctuation 差频起伏 | difference frequency instantaneous power 差频瞬时功率 | difference frequency rms power 差频实效值功率
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beat Cepheids：差频造父[型]变星
bearing 航向;方位 | beat Cepheids 差频造父[型]变星 | beat period 拍合周期