1) frequency component
频率成分
1.
The relationship among frequency components of multi-tone, perceptual cepstrum distance and subjective evaluation is studied for different frequency response curves through theoretical calculations and subjective experiments.
通过理论计算和主观实验,研究了多频声频率成分在不同频响曲线下与感知倒谱距离和主观评价之间的关系。
2.
Conventional methods which stimulate seismic records cannot increase frequency components and improve signal-to-noise ratio at the same time.
常规方法产生的地震记录难以在提高记录频率成分的同时提高记录的信噪比。
2) multi-frequency component
多频率成分
1.
In order to explain the advantages of GA identification method compared with spectral identification method and the feasibility of the application to multi-frequency component analysis of building oscillation signal,a set of simulated signal(without noise and with random w.
基于频谱分析的建筑物振动信号的多频率成分分析方法是一种近似方法,其误差较大,为此提出一种基于遗传算法的新方法——GA辨识法。
3) component frequency
部分频率，组成频率
4) prominent frequency ingredient
卓越频率成分
1.
Aiming at vehicle noise recognition, this paper abstracts some features, such as, spectrum gravity center, spectrum area and prominent frequency ingredient on the basis of making pre processing and AR spectrum estimation of tested four kinds of vehicle noises.
针对车辆噪声识别问题，在对实测的４种车辆噪声信号进行预处理和ＡＲ谱估计的基础上，提取了谱重心、谱面积和卓越频率成分等几个特征量。
5) fractional frequency synthesizer
分数频率合成器
1.
But,because of the technique modulates the instantaneous divide ratio,fractional frequency synthesizer suffers from fractional spurs.
分数频率合成器克服整数频率合成器的频率分辨步长和相位检测器工作频率设置之间的矛盾,可以在使用高频率的参考信号的同时获得高精度的输出信号频率,放松了对滤波器带宽的限制,但同时又引入了频率的分数噪声问题。
6) fractional-N frequency synthesizer
小数分频频率合成器
1.
All analysis of quantization noise for single-loop Δ-Σ modulator for the fractional-N frequency synthesizer is based on linearization assumptions.
以往对小数分频频率合成器中的Δ-Σ调制器的量化噪声大都建立在线性分析的基础上,这样得出的量化噪声近似为高斯噪声。
2.
A fractional-N frequency synthesizer with novel dividers is proposed.
提出了一种采用新型分频器的小数分频频率合成器。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条