1) low frequencies noise
噪声点功率谱幅值
2) noise power spectrum
噪声功率谱
1.
We individually test their modulation transfer function(MTF),noise power spectrum(NPS),noise equivalent number of quanta(NEQ)and detective quantum efficiency(DQE).
我们对我院现有的德国西门子公司NEUOSTARPLUS血管造影系统和北京万东医疗装备股份有限公司CGO -2100C血管造影系统的调制传递函数 (MTF) ,噪声功率谱 (NPS) ,噪声等价量子数 (NEQ )和检测量子效率 (DQE)分别进行了测试。
2.
In this paper the screening methods widely used in optoelectronic coupled devices (OCD) are analyzed,and a new screening method by use of measuring noise power spectrum of OCD is proposed.
本文针对目前用于光电耦合器件筛选方法的不足，提出了用测量光电耦合器件噪声功率谱的方法来筛选掉噪声值大的器件，给出一批光电耦合器件的测量统计结果及在不同工作点时的噪声功率谱，并给出相应的筛选标准。
3.
The system function block diagram and software design were introduced,which can measure the noise power spectrum in frequency-domain,and show the time waveform,also perform the time-domain analysis.
介绍了系统功能框图和软件设计,不仅能够测量光电耦合器的噪声功率谱,而且还能显示时域波形,并完成时域分析。
3) noise power density spectrum
噪声功率密度谱
1.
Based on quantum theory of light, the noise power density spectrum and its timespectrum formula of the intensity fluctuation of a two-mode laser are derived.
采用光场的量子理论导出了自由运转双模激光场强度起伏的噪声功率密度谱及其时谱公式，重点分析讨论了双模激光场的量子统计特性及其拍频噪声的时谱特性和频率调谐特性。
4) reshaping of noise spectral
噪声功率谱整形
5) Noise Power Spectrum Estimation
噪声功率谱估计
6) noise power
噪声功率
1.
An Analysis of the Video Noise Power and the Weighted Compression;
电视视频噪声功率与加权压缩分析
2.
This paper gives the ASE noise of fiber Raman amplifier with forward coupled equation,getting the losing of noise power brought by ASE noise,analyzing the relation between ASE noise power and attenuation of signal,as well as the length of fiber transmission.
通过此简化模型 ,得出了由ASE噪声引起的噪声功率损失 ,进而分析了ASE噪声功率与信号的衰减及传输距离的关
3.
In light of the fact that the noise power is affected by the change of the channel order,a novel algorithm is proposed.
根据噪声功率随信道阶数的变化特点,提出一种新的阶数估计算法。
补充资料：幅值裕度
分子式：
CAS号：
性质：相角交界频率ωL(即开环频率特性相角ψ(ωL)=－180°时的频率)上。开环频率特性幅值。
CAS号：
性质：相角交界频率ωL(即开环频率特性相角ψ(ωL)=－180°时的频率)上。开环频率特性幅值。
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