查询词典 quadrature

The receiver includes: an LNA and downconverter; complete synthe- sizers and VCOs; direct conversion from IF receiver with variable gain control; quadrature demodulator; I/Q base- band amplifiers; and, on-chip baseband filters.

该接收器包括：一LNA和下变频器；完成桑特- sizers和压控振荡器，从中频可变增益控制直接转换接收器；正交解调器，I / Q基带放大器，以及片上基带滤波器。

Then by using FEM to calculate the direct and quadrature axis magnetic fields, the steady-state reactances x〓 and x〓 are determined with definition method and vector potential method when μ〓 equals ∞ and voltage equals 0.1U〓 and U〓 respectively.

接下来，以有限元为工具，在直轴和交轴磁场下，用定义法和矢量位法，分别确定μ〓=∞、0.1U〓和U〓状态下的稳态电抗x〓和x〓以及在额定负载下确定x〓和x〓的饱和值，并研究了直、交轴间的耦合电抗以及用路的方法确定稳态电抗。

Voltage control by means of an additional variable quadrature voltage component.

用附加可变横向电压分量的电压调节。

It is found that the two kinds of squeezing can be obtained at some conditions.and the interaction between atoms in BEC changes the period of fluctuation of light field and the amplitude of fluctuation of quadrature component.

由于BEC的独特物理性质及存在的广泛应用前景，BEC已成为一个十分活跃的理论和实验研究领域，实验上相继实现了原子激光，分子BEC等一系列重大进展[4~6]。

This paper aims to study some important problems of clutter modeling and simulation, which include as follow:According to the principle that each quadrature component of K-distributed clutter can be modeled, exactly or approximately, by a weighted sum of products of two independent Gaussian variables, a new method for modeling and simulation of correlated coherent K-distributed clutter is presented.

本文对海杂波的分析与建模中的几个关键问题进行了研究，主要包括以下内容：根据K分布杂波的两个正交分量可由两列相互独立的高斯矢量的加权乘积和精确或近似构成的原理，本文提出了一种新的相关相干K分布杂波建模与仿真方法。

The directions of orbital plane deflecting, during the same and the opposite direction revolving processes, under quadrature component effect, are opposite.

在这两个过程中正交分量作用的方向也是完全相反的，并且是不相等的。

In this paper, the flux oriented angle of stator flux oriented vector control is deduced by the voltage vector space angle of the direct torque control, and mathematical model is set up based on the direct and quadrature axis component of the stator current.

将直接转矩控制与定子磁链定向矢量控制相结合，利用DTC中电压矢量的空间位置角，推导出SFOVC中的磁链定向角，然后根据旋转坐标系中的d轴和q轴电流分量，建立定子磁链估计的数学模型。

The digital users signals comprising in-phase component and quadrature component are converted to analog baseband signals by digital-to-analog converters 104 and 114, which are followed by lowpass filters 106 and 116 for removing harmonics at unwanted frequencies.

包括同相分量和正交分量的数字用户信号通过数模转换器104和114转换成模拟基带信号，在数模转换器104和114的后面具有低通滤波器106和116，低通滤波器106和116用于去除在不期望频率处的谐波。

According to the characteristics of field dis tribution, a method to abstract quadrature component and amplitude of vertical magnetic field in near-field zone is proposed. Based on the dual-fre. quency combi nation wave theory, apparent resistivities with various forms at center and any point in near-field zone of current loop on stratified earth are defined.

根据场分布的特征，提出了在近区提取磁场垂直分量的正交部分和磁场垂直分量的振幅作为研究对象的方案；根据双频组合波理论，利用它们所对应的双频差，给出了载流回线中心点和近区任意点的视电阻率不同形式的表达式。

Because you can split a 256-level QAM signal into a 16-level ASK (amplitude-shift-keying) signal for the in-phase component and a 16-level ASK for the quadrature component, a symmetrical approach is feasible.

因为将256级QAM信号分离成同相成分的16级ASK信号和求积成分的16级ASK，对称的方法是可行的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。