negative frequency
英 [ˈneɡətɪv ˈfriːkwənsi]
美 [ˈneɡətɪv ˈfriːkwənsi]
网络 负频
双语例句
- New signal processing method with negative frequency contribution for Coriolis mass flowmeter
计及负频率影响的科里奥利质量流量计信号处理方法 - For rectangular window FFT interpolation algorithm, the negative frequency components of harmonic components have a greater impact on the fundamental calculation error.
采用加矩形窗FFT插值算法，谐波的负频分量对谐波计算的误差影响较大。 - We are everyday now in a blundering magnetic field, very much negative frequency is affecting us.
我们现在每天都在一个浮躁的磁场中，很多负面频率在影响我们。 - The precisions of ratio rectifying method is very rough when it was applied to the case of low frequency component, of which the reason was that the contribution from negative frequency not taken into the model.
采用比值法校正低频成分的参数精度比较低，其原因是模型中忽略了负频率成分的贡献。 - Especially, in the solution of pulse spectrum, the negative frequency form of NLS equation should be solved by the negative frequency form of Fourier transformation, while the positive frequency form of NLS equation is solved by the positive frequency form of Fourier transformation.
尤其在脉冲频谱的求解问题中，如果采用负频形式的非线性薛定谔方程则必须选取负频形式的傅里叶变换；如果采用正频形式的非线性薛定谔方程则必须选取正频形式的傅里叶变换。 - The income level of farmers have the positive correlation with the capital demand and have the negative correlation with the frequency of borrowing.
农户收入水平与资金需求数量呈正相关关系，与借贷频率呈负相关关系。 - Effect of negative radio frequency bias and plasma discharge current on formation of c BN film
射频负偏压与放电电流对cBN薄膜形成的影响 - Quadrature demodulation can distinguish positive and negative frequency so it can overcome position uncertainties on imaging data space.
正交解调能够区分正负频率，克服图像数据空间定位的不确定性。 - Three techniques are combined in this power supply, namely, current source driving, negative resistance frequency modulation and floating bridge. The obvious advantages are its powerful circuit functions, simplicity and compactness of the converter circuits, especially its high reliability.
此电路同时采用了电流源驱动、负阻调频、浮动桥路等三项技术，电路功能强，在变换器电路的简单化、小型化、特别是提高可靠性方面，都显示了明显的优点。 - The amplitude of negative frequency components of multiple analytical band pass filter is zero, which can greatly reduce the demand for character of digital filter, increase the maximum multiple of Zoom analysis and improve the accuracy of Zoom spectrum analysis.
复解析滤波器的负频率部分幅值为零，能够大大降低对数字滤波器特性的要求，提高细化分析的最大倍数和细化谱分析的精度。 - Trade cost effects trade frequency to enlarge the negative correlation between trade frequency and stock expect return.
交易成本作用于交易频率，强化交易频率与股票预期收益率的负相关性。 - Correspondingly, the dielectric dispersion which has a negative power relationship with frequency has also been found in a certain frequency domain.
与之对应，在一定频域内存在与频率成负幂次关系的介电色散。 - Quantum noise in negative frequency feedback semiconductor lasers
负频反馈半导体激光器的量子噪声 - The average value per ten minutes is bigger than 60, and the negative lightning frequency is bigger than the positive one in the mature stage.
在雹云成熟阶段，闪电频数每10min平均值>60次，负闪电频数大于正闪电。 - The decay of second-order soliton caused by third-order dispersion can be aggravated by positive initial frequency shift, and restrain by negative initial frequency shift;
正的初始频移可以加剧由三阶色散效应引起的衰变；负的初始频移可以抑制由三阶色散效应引起的衰变； - One strain of toxigenic type D Pm was isolated from pigs on three AR negative farms which frequency was 1/ 13.Bb were isolated from pigs of different age ranges, which positive detectable rate was 47.8% ( 196/ 412).
从此10个猪场的不同年龄猪的鼻腔均分离到支气管败血波氏杆菌，此菌阳性检出率为47.8%（196/412），其感染率与萎缩性鼻炎的发生率无关。 - The influence of negative frequency feedback on the noise performance of optical phase-locked loop ( OPLL) is presented. And the minimum phase noise variance is given.
本文研究了负频反馈（NFFB）对光锁相环（OPLL）噪声性能的影响，给出了最小相位噪声方差。 - Negative refractive index materials are artificial materials with permittivity and permeability both negative within certain microwave frequency band.
负折射率媒质是一种人造媒质，在某一微波波段内其介电常数和磁导率同时为负值。 - The results show that the effective permittivity and permeability were simultaneously negative in certain frequency range, when the direction of the electric field is parallel to the periodically arranged wires and the magnetic field is parallel to the axis of the rings in the periodic arranged SRRs.
实验证实了当电磁波的电场方向与金属条方向相同，磁场方向与金属谐振环的轴向方向相同时，在一定的频率范围内，介质的等效介电常数和等效磁导率同时为负数； - A new signal processing method for Coriolis mass flowmeter is proposed, which is based on the recursive DTFT algorithm and considers the contribution of negative frequency.
基于DTFT递推算法，提出了一种计及负频率影响的科里奥利质量流量计信号处理方法。 - There is a slight negative dispersion in frequency range of seismic wave while there exists high positive dispersion in high frequency range;
在地震波频域内存在轻微的负频散，高频区域则有较强的正频散； - Influence of Negative Frequency Feedback on the Noise Performance of OPLL
负频反馈对光锁相环噪声性能的影响 - Stratified and Rational Distributed Sampling method was recommended to determine the rational sampling quantity of soil nutrients which showed obviously negative frequency distribution.
对于明显偏峰分布的土壤养分来说，建议采用最适分配法确定合理取样数量。 - Because the contribution of negative frequency is neglected in the algorithm, long convergence process exists when calculating phase difference between two signals of Coriolis mass flowmeter using sliding Goertzel algorithm.
采用滑动Goertzel算法计算科里奥利质量流量计信号的相位差时，存在较长的收敛过程，其主要原因之一是忽略了负频率成分的贡献。 - This novel structure inherits the advantages of the DFT modulated filter banks, such as efficiency in computation, great ease in design, and partition of positive and negative frequency components for signals.
这种新型结构的复调制滤波器组继承了一般DFT调制滤波器组的优点，例如：计算的有效性，设计的简单，信号的正负频率分量可以分割到不同的子带进行处理等等。 - As compared with cosine modulated filter banks, DFT modulated filter banks own an unique advantage that it can split positive and negative frequency components into different subbands for independent processing and thereby are suited to analyze and process complex-valued signals.
与余弦调制滤波器组相比较，DFT调制滤波器组有一个独特的优点，即它可以将信号的正负频率分量分割到不同的子带而独立处理，因而特别适合于处理复值信号。 - City Living space is not obvious economic benefits interaction space to think, lack of attention to its specific design and planning, have a negative impact on the frequency and quality of the lives of urban residents exchanges.
本文就城市住居空间中经济效益并不明显的交往空间进行思考，发现其在具体的设计规划中缺乏重视，对城市居民生活中交往活动的频率与质量带来负面影响。 - Modeling method based on the instantaneous value of the data follows the TVA load model structure. The instantaneous value of the data modeling and model validation, including the negative sequence component and frequency information, improve the utilization of the measured information.
基于瞬时值数据的建模方法，沿用了TVA负荷模型结构，但建模及模型验证时均采用瞬时值数据，包含了负序分量和频率信息，提高了实测信息的利用率。 - In recent years, several weak/ negative damping low frequency oscillations and forced power oscillations have happened in China due to insufficient system damping or external successive and cyclic disturbances. Additionally, there are forced power oscillations caused by strong modal resonance.
近年来，我国电网除了发生由系统阻尼不足引起的弱／负阻尼低频振荡和由外部持续、周期性小扰动引起的强迫功率振荡之外，还多次发生了由强模式谐振导致的强迫功率振荡。 - While the belief that "learning words by memorization" shows negative correlation with high frequency vocabulary test.
而学习单词靠死记硬背这个观点与词汇量水平却呈负相关。