The auto power spectrum of phase function commonly has two extreme frequencies, and the corresponding frequency components decide the peak characteristics of phase function.
相函数的自功率谱一般具有两个峰值频率，其相应的频率分量决定相函数的波峰特征。
Using frequency spectrum analysis of phase function to calculate its auto power spectrum can reflect its frequency structure.
利用相函数的频谱分析求其自功率谱，可以反映它的频率结构。
This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).
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。
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.
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；
Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
首先介绍从信号幅度、相位、频率及功率谱等特性中提取的三种特征参数，应用这三种参数采用人工神经网络对模拟调制信号进行了识别。
The purpose of this project is to design a wide frequence band, fine frequency step, low phase noise and low spur synthesis sweeping source suited for the spectrum analyser.
本课题的目的是设计一个适用于该频谱分析仪的宽频率范围、精细频率步进、低相噪及低杂散的合成扫频源。
In induced polarization method, multi-frequency relative phase spectrum method use above signal as field source, showed the advantage of PRMF signal used as field source for electrical exploration.
多频激电相对相位谱法采用上述信号作为场源，充分反映了该信号作为电法勘探场源的优点。
The parsimonious processing includes deconvolution, constant phase filtering, pure phase filtering, frequency spectrum extrapolation, stacking and so on.
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 Angle spectrum analysis of self-image of double frequency grating is given. The grating duplication and the measurement of lens focus are obtained by Tablot effect of holographic phase grating.
本文给出了双频光栅自成象的角谱分析，并利用位相型的全息双频光栅的太保效应来进行复制光栅和测定透镜焦距等。
The hardware constitution of a low phase noise frequency synthesizer using AD9854 and the measured performances of system phase noise and spurious spectrum are presented.
给出了采用AD985 4芯片构成的低相噪频率综合源的硬件组成以及系统实测的相位噪声、杂散技术指标。
This scheme uses smooth wave instead of discontinuous wave, so the wave in time field is continuous phase and has good frequency spectrum characteristics.
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。
In this paper, the frequency spectrum and the bandwidth of the frequency shift signal with continuous and discontinuous phase are analyzed.
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。
Studied two conditions of acoustic signals when it was single-phase gas and two-phase flow in the pipeline from sound spectrum, acoustic energy, peak frequency and amplitude.
分别从声波频谱，声波能量，峰值频率，以及幅值等方面对管道内为单相气体和两相流体两种状态下的声波信号进行了研究。
The simulation model is validated through waveform or frequency spectrum comparisons of two original pulse signals and restructured signals utilizing phase information.
通过对两种原始信号与利用相位信息进行重构得到的信号进行波形或频谱的比较，验证了这种多比特相位量化仿真模型的正确性。
We have mainly researched two FM signal demodulation techniques called Frequency Spectrum Separation and Phase Lock Loop in the first part.
一次解调中研究了频谱分离法和锁相法两种实现鉴频的技术。
After the chatter frequency is idenrified through the power spectrum of the chatter signals dy carrying out FFT, the best phase difference and the related tooth cutting period are calculated.
然后根据颤振系统与切削周期的能量关系，计算出最优相位差及相应的切削周期；
In the research and design of signal source, the key technology of the nature of broad spectrum, the same initial phase, and multi-frequency synchronization sending has been researched.
在信号源的研究与设计中针对信号源的广谱性质、起始相位同步、多频同步发送等关键技术进行了研究与设计。
In the research and design of signal source, the key technology of the nature of broad spectrum, the same initial phase, and multi-frequency synchronization sending has been researched.
在信号源的研究与设计中针对信号源的广谱性质、起始相位同步、多频同步发送等关键技术进行了研究与设计。
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