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相位连续
相关语句
  continuous phase
    Continuous phase modulation (CPM) is a kind of constant-envelope digital modulation schemes with continuous phase which provides good spectral- and power-efficiency.
    连续相位调制信号(Continuous Phase Modulation)具有包络恒定、相位连续的特点,因此有较高的功率利用率和频谱利用率。
短句来源
    DDS is an advanced technique on frequency synthesis, whose primary advantages are controlling facility, continuous phase and fine frequency resolution.
    DDS技术是一种先进的频率合成技术,其主要优点是易于程控,相位连续,输出频率稳定度高,分辨率高。
短句来源
    Direct digital synthesizing is a new frequency synthesizing technology,which adopts phase increment controlled by digital . It has so many virtues such as high frequency relution ,fast frequency switching ability,continuous phase ,low phase noise and integration easily for its numberic operation that has been adopted widly.
    直接数字合成DDS(Direct Digital Synthesize)是新一代的频率合成技术,它采用数字控制信号的相位增量技术,具有频率分辨率高(可达mHz至μHz量级),频率切换快(可达几十ns量级),频率切换时相位连续和相位噪声低以及全数字化易于集成等优点而被广泛采用。
短句来源
    The DDS(Direct Digital Frequency Synthesis) technique adopts full-digital synthesis methods. The generated signals have advantages of high frequency resolutions, fast frequency switching, continuous phase while frequency switching, low noise phase and being able to generate arbitrary waveforms.
    直接数字频率合成(DDS)技术采用全数字的合成方法,所产生的信号具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等诸多优点。
短句来源
    Direct Digital Synthesize technology is new era frequencies synthesize technology. It controls phase increment of the signal with digital. This method has many advantages, such as high distinguishing ratio of frequency, switching frequency rapidly, continuous phase while switching, low phase noise, full digital and easy to integrate.
    直接数字合成DDS(Direct Digital Synthesize)是新一代的频率合成技术,它采用数字控制信号的相位增量,具有频率分辨率高、频率切换快、频率切换时相位连续和相位噪声低以及全数字化易于集成等优点,因此被广泛采用。
短句来源
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  “相位连续”译为未确定词的双语例句
    The Study of MEMS Millimeter Wave Phase Shifter
    相位连续可调毫米波MEMS移相器的研制
短句来源
    Having been debugged, its resolution ratio of frequency is 1μHz, and its maximal frequency is 40MHz, and its merits have continuo us output phase and high noise immunity.
    经调试,该信号发生器的频率分辨率达到1μHz,最高频率达到40MHz,同时具有输出相位连续、抗干扰能力强等优点.
短句来源
    The output of DDS has wide relatively bandwidth, short frequency conversion time, high frequency resolulion capacity, continuous output phase, broadband orthogonality signal generation and DDS is integrated easily.
    DDS具有输出相对带宽宽、频率转换时间短、频率分辨力高且输出相位连续、可产生宽带正交信号,易集成等优点。
短句来源
    Adaptive Filter for Unwrapping Noisy Phase Image in Phase-stepping Interferometry
    基于自适应滤波器的相位连续化算法及其在移相干涉术中的应用
短句来源
    The direct digital frequency synthesizer is a kind of fully digitized frequency synthesizer, which consists of the phase accumulator, the sine look-up table, the digital to analog converter and the low band filter. It is of high frequency resolution, fast frequency switching speed, low phase noise, the ability to switch frequencies while maintaining constant phase, and the ability to producing arbitrary waveforms.
    直接数字频率合成器是一种全数字化的频率合成器,由相位累加器、波形ROM、D/A转换器和低通滤波器构成,DDS技术具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等优点。
短句来源
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  continuous phase
Mass transfer between bubbles and the continuous phase in a pseudofluidized layer
      
The problem of mass transfer between an isolated bubble and the continuous phase in a pseudofluidized layer is considered, when the rising velocity of the bubble exceeds the pseudofluidization rate.
      
Mass transfer between bubbles and the continuous phase in a fluidized bed of variable cross section
      
A solution is given to the problem of convective diffusion of the substance to the region of closed circulation, and the mass-transfer coefficient between a bubble and the continuous phase is determined as a function of the flow parameters.
      
The macroscopic equations of motion of a two-component system consisting of a continuous phase and a large number of solid particles are considered.
      
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The direct digital Frequency Synthesizer is extensively used because of its fastfrequency switching, high frequency resolution and continuous phase while switching frequency. its output spurious power is an importmant speCification concerned by us. This paper analyzes the spurious power caused by the phase trucation error and amplitude quantization error,and derives a formula calculating the spurious power. The formula is simple but accurate.

直接数字频率合成器由于其频率切换快、频率分辨力高、频率切换时相位连续等优点正得到广泛应用,其输出杂散功率是人们关心的重要指标。本文分析了相位截断误差和幅度量化误差引起的杂散功率,推导了一个计算杂散功率的公式,该公式简单但精度高。

The idea of deducing the construction of the mask according to the distribution of the desired IC patterns is put forward.A new method based on alternative projection operation to devise phaseshifting mask has been proposed. The amplitudes and phases of the devised mask are continuous.An example mask and the quantification method are given.The experiment results show that the method is effective to devise complex phase?shifting masks and the proximity effect is decreased.

根据所需光刻图形的分布 ,反推掩模结构的思路 ,提出了一种基于交替投影算法的掩模设计方法。该方法设计出的掩模为振幅和相位连续。并给出了一个设计实例和量化方法。实验结果表明该方法对复杂相移掩模的设计有效 ,可以减小邻近效应。

An adaptive filter for preprocessing wrapped phase image with high noise content has been developed. The window size of this median filter is adjustable according to its location in the noisy phase image. Phase unwrapping can then be done to recover the real phase image without the hampering influence of noise, especially the noise near the phase jumps. Both numerical simulation and experimental results used to examine the effectiveness of this adaptive filter are presented.

提出一种非线性自适应数字滤波器对通过移相干涉术得到的原理相位图进行去噪音处理。这种数字滤波器的窗口尺寸可以根据其在相位图中的不同位置而变化。在有噪音 (尤其是靠近 2π相位跳变处的噪音 )存在的情况下 ,相位连续化过程仍可以有效地进行以重建被测物体表面形貌的真实相位图。详细介绍了这一技术的原理及实验结果

 
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