The pulse duration and the spectral phase are measured by SPIDER.
利用SPIDER装置测量了出射脉冲的脉宽和光谱相位。
This paper studies the problem of signal reconstruction from spectral phase.
研究了由相位谱重构有限长离散信号，即幅度补偿问题。
The information eavesdropping techniques of spectral phase-coded OCDMA system were investigated.
针对光谱相位编码光码分多址系统（OCDMA）的信息侦听技术进行了研究。
Extracting spectral phase differences between two linear chirped pulse from the spectral interferogram is simulated based on Fourier Transform Spectral Interferometry.
在超快光学瞬态相移的测量中，结合线性啁啾脉冲与频谱干涉技术，可以获得啁啾脉冲相移随频谱的变化规律。
Based on further studies on spectral phase interferometry for direct electric-field reconstruction from both hardware and software, SPIDER phase measurement system is built.
在对光谱相位相干直接电场重构法硬件和软件进行深入研究的基础上，建立了光谱相位相干直接电场重构法测量系统。
The numerical analyses have been conducted for characterizing femtosecond laser pulses with the spectral phase interferometry for direct electrical field reconstruction (SPIDER).
对用光谱位相相干直接电场重建法（SPIDER）测量飞秒光脉冲啁啾特性的光谱位相干涉仪进行了数值模拟；
Based on further studies on spectral phase interferometry for direct electric-field reconstruction (SPIDER) from both hardware and software, SPIDER phase measurement system is built.
在对光谱相位相干直接电场重构法(SPIDER)硬件和软件进行深入研究的基础上，建立了光谱相位相干直接电场重构法测量系统。
In the technology maturation phase, Raytheon's jammer will be developed and tested to ensure spectral precision, power, reactive speed and directivity.
在技术成熟阶段，雷神的干扰机将进行研发测试，以确保频谱精度、功率、反应速度和定向能力。
This information normally exists in the form of signal amplitude (absolute or relative), frequency or spectral content, phase, or timing relationships with respect to other signals.
通常，信息的存在在形式是信号幅度绝对幅度或相对幅度、频率或频谱成分、相位或者和其他信号之间的时序关系。
This information normally exists in the form of signal amplitude (absolute or relative) frequency or spectral content phase or timing relationships with respect to other signals.
通常，信息的存在在情势是信号幅度尽对幅度或绝对幅度、频率或频谱成分、相位或者跟其余信号之间的时序关联。
There are two distinct methods in optical fiber sensor system for the observation of such fringe pattern and these can be identified as spectral domain processing, and phase domain processing.
这里研究用两种不同的方法在光纤传感器系统来观察这样的条纹图样，即光谱域处理方法和相位域处理方法。
In addition, a new result for reconstruction of mixture phase signal from FT spectral magnitude is obtained.
文中还给出了由幅谱重建混合相位有限长信号的新结果。
Methods to isolate the constituents by reverse phase chromatography, and characterize their structures by the analysis of chemical property and spectral data.
方法利用反相层析的方法进行分离纯化，根据化合物的化学性质与光谱数据鉴定其结构。
As we know, spurious noise of a DDS resulted from phase truncation degrades its spectral characteristics.
由于相位舍位会导致直接数字频率合成器(DDS)的输出产生杂散，使其频谱特性恶化。
To estimate signal frequency and amplitude exactly under noisy circumstances, the excellent property of all-phase DFT restraining spectral leakage is mathematically proved.
为精确估计噪声环境中的信号频率和幅值，数学证明了全相位DFT优良的抑制频谱泄漏的性质。
The frequency and amplitude and phase of discrete spectral lines can be calculated through two DFT analyses one after another, which is one complex time domain signal analysis virtually.
相继两次DFT分析（实为一次复时域信号分析）可精确确定诸分立谱线的频率、幅度与相位。
With same input signal to excite two systems, the results show that the power spectral density of the output can't identify non-minimum phase signal.
用相同的激励信号作用，结果显示，功率谱密度无法分辨非最小相位信号。
The results indicate that the LPWA has much better reproducibility and accuracy than the major frequency of power spectral density in reflecting the properties of bubble phase.
结果表明，它具有比传统的功率谱主频好得多的统计重复性，能更准确地反映气泡相的特性。
By changing the number of relative carrier-envelope phase, broader spectral broadening and higher spectral intensity, especially the spectral intensity of high frequency components, can be obtained.
通过改变相对载波包络位相的数值可以获得更宽的频谱宽度及更高的光谱强度特别是高频分量的光谱强度。
This paper analyzes the spectral characteristic of the synthesized waveform by use of the Fourier Series, and discusses the spurious spectrum of the phase truncation errors.
本文用傅里叶级数的方法分析了合成波形的频谱特性，并对由于相位截断引起的杂散谱作了讨论。
Affected by higher Rayleigh wave modes in the surface wave field, the effective phase velocity obtained by spectral analysis of surface waves SASW.
由分层介质表面两不同点响应互谱分析(SASW)得到的有效相速度并不对应于面波基阶模态相速度，它与波场中高阶模态能量分配比例有关。
Flicker noise is approximately simulated by power law model of phase noise spectral density.
根据相位噪声功率谱的幂律模型，近似地模拟了相位噪声。
A dispersive white-light spectral interferometer for precise measurements of the phase properties of multilayer thin film structures is built.
本文搭建了一个用于精确测试光学薄膜位相特性的色散式白光频谱干涉仪。
Numerical results demonstrate that the phase variations caused by multipath time delays may influence accuracy of the mean of time synchronization error spectral estimation.
数值计算结果表明，多径分量的相位变化会影响时间同步误差谱估计均值的准确性。
The phase error signal due to the phase truncation is analyzed, and the regularity of its spectral lines is obtained.
对相位舍位误差信号作了分析，得到了其频谱分布的规律。
With the increase of demand for thin film structures with specific phase properties, this white-light spectral interferometer can play an important role in future thin film industry.
随着对于薄膜位相调制特性要求的提高，该系统将可望在未来的薄膜工业中扮演比较重要的角色。
Moreover, since the all-phase preprocessing can suppress the individual harmonics' spectral interference on the fundamental wave, the accuracy is greatly enhanced.
由于全相位预处理抑制了各次谐波对基波的干扰，因而大大提高了测量精度。
Moreover, since the all-phase preprocessing can suppress the individual harmonics' spectral interference on the fundamental wave, the accuracy is greatly enhanced.
由于全相位预处理抑制了各次谐波对基波的干扰，因而大大提高了测量精度。
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