Frequency response analyzer is used to measure the amplitude-frequency characteristic and phase-frequency characteristic of the networks.
频率特性分析仪用于测试网络的幅频和相频特性。
The position of knee point of Phase-frequency characteristic mean value curve is invariant, but the kurtosis of the curve near the knee point decreases.
刚度与质量参数随机时相频特性均值曲线的拐点位置不变，只是拐点附近曲线陡峭度减小。
It can measure the magnitude characteristic, phase characteristic and limiting frequency of a system.
它能直观的测试一个系统的幅频特性、相频特性和截止频率。
Besides amplitude, phase and Doppler frequency, polarimetric information is the fourth characteristic in the radar echo.
雷达回波信号中，除幅度、相位和多普勒频移外，还存在第四特征——极化信息。
And how to control phase screen parameters and improve low frequency characteristic are also described in detail.
对相位屏的方差、低频特性进行了有效控制和改善。
In frequency analysis of rotating arc signal, the phase of harmonic characteristic reflects the initial Angle between weld direction and seam's direction.
在旋转电弧信号的频域分析中，其特征谐波的相位反映了焊缝方向与焊接方向的初始夹角。
The analyses of frequency characteristic of the system demonstrate that the noise in effective frequency band is eliminated and the phase of the system is approximately linear.
并对系统的频率特性进行了分析，表明基于该技术的微加速度计系统在工作频段内噪声能够得到有效的消除，且具有近似的线性相位。
Moreover, this paper analyzes and compares the phase -frequency characteristic and probes into the improvement of it's performance.
此外，对其相频特性进行了分析和比较，并对进一步提高其性能进行了探索。
By the aid of the phase shift-frequency characteristic, the conformal transformation and the perturbation theory, a new kind of compact, broadband waveguide phase shifter is developed.
借助相移-频率特性、保角变换和微扰理论，研制出了新型的宽带移相器。
The traditional method for amplitude-phase frequency characteristic calculation is first to solve the numerator polynomials and denominator polynomials of a transfer function.
频域计算的传统方法是先求出传递函数的分子多项式和分母多项式。
The traditional method for amplitude-phase frequency characteristic calculation is first to solve the numerator polynomials and denominator polynomials of a transfer function.
频域计算的传统方法是先求出传递函数的分子多项式和分母多项式。
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