查询词典 quadrature

This quadrature approach is of theoretical and practical value for the application of Radar and EW.

该正交采样技术利用多速率信号处理方法，可对ADC基带采样率内的任意带通信号得到其调制复包络输出，并具有很好的镜像抑制，在雷达和电子对抗信号处理中具有其实际的理论和应用价值。

Commonly used methods of quadrature coherent detection are summarized, as well as their

建立雷达系统的各个模块后，对整个雷达系统的高重频工作模式进行了仿真测试，表明该系统能够有效地抑制杂波、检测目标。

In SiGe BiCMOS process, there are a 5.2GHz CMFB micromixer, a 5.7GHz up-conversion micromixer using LC current combiner, a 5.2GHz LC current combine up-converter with lumped element rat-race and a 5.2GHz image rejection double quadrature down-converter.

其中SiGe BiCMOS制程包含了5.2GHz共模回授微混频器电路、5.7GHz 使用LC电流合成器之升频微混频器、整合集总元件Rat-race的5.2GHz LC电流合成升频器与5.2GHz镜像消除双正交四相位降频器等电路。

This invention discloses a data retransfer method based on bit conversion which is to exchange positions forming bits, according to selected exchange way before quadrature amplitude modulation to each retransferred data.

本发明公开了一种基于比特变换的数据重传方法，该方法的关键是在每次重传数据进行正交振幅调制之前，对数据内各组成比特的位置按照选定的变换方式进行调换；该方法还进一步包括：a。

Outputs are single-ended quadrature A and B channels with up to 512 lines per rev plus an index pulse.

输出是单端A和B正交高达每信道512线转速加上索引脉冲。

Finally, by using a semi-open quadrature rule, the singular integral equations were transformed to algebra equations.

最后，由位错密度函数得到各裂纹分支端的应力强度因子值。

The results of the studies indicate that the fluctuations of two quadrature components of light can be squeezed periodically, and this squeezability is related to the initial state of the system.

数值计算结果表明，光场的两个正交分量的均方涨落均呈现周期性的压缩，其压缩程度与系统的初始状态有关；光场光子的统计性质也依赖于系统的初始状态，光场两模之间的相关是一种非经典相关。

To demonstrate the applicability of the proposed broadband quadrature hybrid, a continuous phase shifter which is based on the vector sum method is tested.

为了证明所提出的正交宽频混合器的可应用性，我们用一个利用向量加法的连续相移器去证明其潜力。

In this paper, the domain decomposition method is used for the elliptical boundary problems on a pentagonal region. In every sub-domain, we solve the partial differential equations with TDQ method, namely, triangular differential quadrature domain decomposition method.

为求解五边形上的椭圆型微分方程边值问题，我们借助了区域分裂法(domain decomposition method，简称DDM)，将大区域分成几个小区域，在每个小区域上，用TDQ方法，这种方法我们称之为三角微分求积区域分裂法(triangular differential quadrature domain decomposition method，简称TDQDDM)。

Quadrature including the trapezoidal method, abnormal integral triple integral,...

包括梯形求积法，反常积分，三重积分，龙贝格方法，辛卜生方法等6种方法。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。