In phase-coherent communication system, phase-locked loop is always used to yield coherent reference signal.
相位相干通信系统中，通常采用锁相环路来产生相干参考信号。
Neither the coherent optical input image nor the Fourier transform hologram of the reference image is required by this system.
这个系统既不需要相干光输入图像，也不需要基准图像的付氏变换金息图。
The distribution of interference light intensity generated by multiple coherent laser beams on reference plane is derived in theory and the numerical calculation is carried out.
对参考平面上相干光产生的干涉光强分布进行理论推导和数值计算，从理论上定量地分析了多束相干光的波矢量、偏振态对干涉光强分布的影响。
It is not coherent if it has faulty parallel constructions, pronouns with ambiguous reference, dangling or misplaced modifiers, confusing shifts in person and number, or in voice, tense, and mood.
如果有错误的并列结构，指代不明，修饰悬挂或错位，人和数字变动、语态、时态、语气混乱，这就是不连贯句。
In this part five types of cohesion: reference, substitution, ellipsis, conjunction and lexical cohesion are introduced and applied to the analysis of how the novel is made coherent.
本章介绍了语篇连贯的五种手段：指称、连接、省略、替代和词汇连贯，并运用这些手段对作品的篇章结构进行分析。
Because the coherent light has a consistent frequency and wavelength, itis used as a reference with which to measure the differences in the reflected light.
相干光具有稳定的频率和连续的波长，所以用来作为参照，以衡量不同反射光之间的差异。
Two methods to chose coherent accumulation time and non-coherent accumulation times are proposed and simulated. The methods and simulation results can be used as a reference in GNSS DE sign.
提出了两种相干累加时间与累加次数的选取方法并进行了仿真，该方法和仿真结果可作为GNSS系统信号捕获与跟踪过程方案设计的参考依据。
Two methods to chose coherent accumulation time and non-coherent accumulation times are proposed and simulated. The methods and simulation results can be used as a reference in GNSS DE sign.
提出了两种相干累加时间与累加次数的选取方法并进行了仿真，该方法和仿真结果可作为GNSS系统信号捕获与跟踪过程方案设计的参考依据。
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