角频率

The impact of both system frequency variation and dielectric loss angle variation on measured true value is analyzed.

探讨了系统频率变化和介损角变化对测量真实值的影响。

On the basis of theoretical analysis of target diffusion in range-velocity resolution cell, the array signal covariance matrix and noise covariance matrix are estimated from some different cells respectively. The processing results from experimental data in onshore HFSWR with Minimum Variance Distortionless Respose, MUltiple SIgnal Classification and pre-whiten MUSIC respectively show that super-resolution methods can provide better resolution than CBF.

鉴于 HFSWR 工作波长较长、常规波束形成角分辨力较差的缺点，基于目标在距离—多普勒平面分布的理论分析，本文利用相邻距离、多普勒频率单元信号估计阵列协方差阵，并分别利用 MVDR 、 MUSIC 、预白化 MUSIC 方法进行超分辩处理，实测的合作飞机目标数据处理结果表明超分辩方法能明显提高阵列角度分辨力。

The differences of major frequency-domain characteristics and the interior relationships between electrode and electrodeless lamps are compared.

有电极荧光灯电子镇流器的分析和设计是基于镇流器谐振环的频域基波近似分析，从中得到谐振环的谐振频率公式、阻抗角公式、输出电压和电流公式。

It is showed that the steady state distribution of the velocity just depends on the visco-elastic index of the cupula and the velocity is proportional to 〓, and the profile of the endolymph is parabolic, which is just like the Poiseuille fluid.

分别定义内淋巴液的平均角位移以及无量纲平均速度作为半规管系统的输出和输入，对于系统的频率特性进行了分析。

Theoretical analysis proves that,when the pixel number,pixel size and reconstructed wavelength of the hologram are certain,computer simulated algorithms of Fresnel diffraction integral fall into convolution algorithm,angular spectrum algorithm and direct Fourier trans...

通过对相位函数局域空间频率的分析，给出了判定算法适用范围的特征再现距离，并分析得出，再现距离大于特征再现距离时，适合用卷积法；小于特征再现距离时，适合采用角谱法；等于特征再现距离时三种方法都适用。

Time domain signal is transformed to the frequency domain signal by FFT. Dispersion curve is obtained from phase angle that is calculated by the frequency spectrum analysis. A compound dispersion curve is obtained from the dispersion curves intervale, and the representative dispersion curve is used to evaluate dimensions and quality of soil grouting body.

由FLAC所得不同点位的速度历时透过快速傅立叶转换后，得到频率域讯号，再经过频谱分析计算其相位角，得到其频散曲线，由不同间距的频散曲线集合成复合频散曲线，再绘制成一"代表性"频散曲线，以评估灌浆体品质及范围。

To evaluate the interaction effects of the three chemical components, Cochinchinenin A, Cochinchinenin B and Joureirin B, of dragon's blood resin, a new method of isobologram on the basis of the Loewe Additivity was established and could analyze the interaction effect of the three drugs with variable potency rations. By using this new method we assessed the interaction characteristic of the combined inhibition effects of three chemical components of dragon's blood resin on the evoked discharges of wide dynamic range neurons of spinal cord in rats.

为了评估龙血竭的3种化学成分剑叶龙血素A、剑叶龙血素B和龙血素B在活体动物实验中的相互作用特性，从经典的Loewe Additivity模型中推导出了在效价强度比变化的情况下判断3种药物的相互作用性质的等效图分析方法，以此分析了龙血竭的上述3种化学成分联合抑制大鼠脊髓背角广动力范围神经元诱发放电频率时的相互作用类型。

In the analysis of dynamics cutting angle, the following phenomenon is discovered first time: the minimize of dynamics clearance angle is not monotone decreasing with the vibration frequency , and appear peak value periodically, which exist is the disseparation region and approach the separation region.

在对振动钻削中切削刃上各点的动态角度的分析中，首次发现在振动钻削过程中动态后角的最小值不是随着频率或频转比的增大单调下降，而是周期性的出现波峰值，这些波峰值都出现在不分离区，而且是接近于分离区处，这是由振动钻削过程中的变速特性引起的。

In the actual application systems of measurement, a transient process is created in a RL circuit, and then the frequency and time constant of RL circuits can be accurately estimated using numerical differentiation methods.

深入研究和分析了具有电感和电阻的电流互感器和电压互感器的等值电路，在实际测量应用中人为地造成一个RL电路的暂态过程，采用数字微分算法能够快速准确地算出RL电路的频率和时间常数，进而计算出电流互感器和电压互感器的角差。

Synchronized phasor measurements is a new developing technology in power system dynamic stability monitoring. It can effectively characterize the dynamic behavior of power system, directly perceived features, it reduces memory requirement and facilitate the postprocessing with the ability of improving efficiency, it provides an effective on-line analytic method for people working on power system.

本文对电力系统同步相量动态测量系统的建立和应用做出了积极贡献，在系统评述前人研究成果的基础上，给出了视在相角和视在频率的定义，提出了在线快速相量测量算法，并将几种自适应测频算法进行了比较，建立了基于GPS的电力系统全网同步时钟，完成了相应的动态监测装置及其动模实验。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。