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。
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.
本文采用基于傅立叶变换(DFT)的频谱分析方法，计算流量信号的频率和相位差。
This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).
本文叙述了用频谱分析仪测量相位噪声的方法，步骤和应注意的问题。
This paper describes some methods, steps and attentions using a spectrum analyzer in phase noise measurement.
本文介绍了一种利用雷达回波幅度信号频谱相位信息进行角度超分辨的方法。
A method which makes use of the phase information of spectrum of radar echo amplitude signal to make azimuth super resolution is given.
经过实践证明，该模拟器产生的信号相位稳定，频谱纯度高，并具有复杂波形生成的能力。
According to practice, this simulator has stable signal phase, pure signal spectrum, and ability to produce any complex waveform.
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。
As we know, spurious noise of a DDS resulted from phase truncation degrades its spectral characteristics.
色散能够改变混沌信号每个频谱分量相位，但不影响混沌信号频谱形状；
The dispersion can change the phase of frequency spectrum component of the chaotic signal, however, it cannot affect the spectrum shape of the chaotic signal.
分析了相位连续与不连续移频信号的频谱并比较了它们的带宽。
In this paper, the frequency spectrum and the bandwidth of the frequency shift signal with continuous and discontinuous phase are analyzed.
本文介绍利用频谱分析仪测量信号相位噪声的方法。
A method of how to measure the signal 's phase noise by spectrum analyzer is introduced.
该方案用平滑的波形来替换前后码元的不连续跳变，从而得到相位连续的时域波形，波形平滑、频谱主瓣窄、滚降速度快。
This scheme uses smooth wave instead of discontinuous wave, so the wave in time field is continuous phase and has good frequency spectrum characteristics.
连续相位调制由于其具有恒定包络幅度且对任意的调制信息序列能保持信号的相位连续，从而能够有效的改进信号的频谱特性。
The continuous phase modulation has the constant amplitude and its phase is continuous, which make the signal has a very good power spectrum.
针对传统数字调制信号频谱扩展问题，提出具有相位突变特性的时相调制(TPM)方式。
Aiming at the spectrum spread problem of traditional digital modulation signals, a time-phase modulation (TPM) method with abrupt phase change characteristic is proposed.
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。
To estimate signal frequency and amplitude exactly under noisy circumstances, the excellent property of all-phase DFT restraining spectral leakage is mathematically proved.
对线性调频信号的旁瓣抑制介绍了经典海明窗加权处理方法、频谱修正以及相位预矫正几种方法。
For LFM signal, we demonstrate the method of employing Hamming weighting, spectrum correcting and phase modulation distortion.
集约化过程包括反褶积、常相位滤波、纯相位滤波、频谱外推以及叠加处理等。
The parsimonious processing includes deconvolution, constant phase filtering, pure phase filtering, frequency spectrum extrapolation, stacking and so on.
本文给出了由频谱的相位函数重建原始信号的新方法。
A new method of the original signal reconstruction from phase function of the spectrum is presented in this paper.
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。
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.
为了补偿数字电视发射机的频谱畸变与相位失真，以得到最佳的VSB频谱特性，可以在调制器中加入预均衡网络对频谱进行预畸变。
To minimize the frequency and phase distortion in a DTV transmitter in order to achieve best VSB frequency performance, a pre equalizer can be inserted into the modulator.
研究了基于相位差的频谱校正方法的基本原理，提出一种利用相位差校正的新方法———窗中心平移法。
The principle of spectrum correction based on difference is studied. A novel method by use of phase phase difference, namely the method of translation of window center is proposed.
对基于频谱分析仪的相位噪声测试原理和方法进行了介绍，并对引起测试系统不确定度的因素及其评定方法进行了讨论。
This article introduces the principle and method how to measure phase noise with spectrum analyzer, and discusses the uncertainty factor and its evaluating method.
为了提高频谱分析的精度，要求对振动信号进行整周期等相位采样。
In order to improve the accuracy of spectrum analysis, it's better to sample the vibration signals in the way of full cycle and equal phase.
独特的向5372a （相比，与5371a ）是更深的记忆体，硬体直方图，和FFT能力高的性能和更复杂的抖动频谱分析和相位噪声的研究。
Unique to the 5372A (compared with the 5371A) are deeper memory, hardware histograms, and FFT capabilities for high-performance and more sophisticated jitter spectrum analysis and phase noise studies.
本文设计了一种一维准周期衍射光栅，理论计算结果表明该光栅的衍射频谱具有自相似性。文中还研究了不同相位子强度对结构因子的影响。
A kind of one -dimensional quasi-periodic grating is designed. Theselfsimilar diffraction spectra are evaluated and the influence of the phason strength onthe structure factor is studied.
首先，本文从信号参数(幅度、频率、相位)估计入手，研究了直接法、细化频谱法和高精度FFT法等算法。
First of all, starting with the estimate of signal parameter (e. g. amplitude, frequency and phasic), it makes a research in algorithms of direct, subdivide the spectrum, high-precision FFT and so on.
结果表明：自相位调制不影响混沌信号脉冲的形状，但能产生非线性相移使混沌信号频谱展宽；
Self-phase modulation of fiber does not affect the pulse shape of chaotic signal, however, its product of nonlinear phase shift can widen the chaotic signal spectrum.
对相位舍位误差信号作了分析，得到了其频谱分布的规律。
The phase error signal due to the phase truncation is analyzed, and the regularity of its spectral lines is obtained.
根据相位噪声的定义，给出频谱分析仪相关测量参数的换算关系，进而得到计算方法。
The conversion relation of some spectrum analyzer's correlative measuring parameters from the definition of the phase noise is given, then the method to calculate the phase noise is gained.
根据相位噪声的定义，给出频谱分析仪相关测量参数的换算关系，进而得到计算方法。
The conversion relation of some spectrum analyzer's correlative measuring parameters from the definition of the phase noise is given, then the method to calculate the phase noise is gained.
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