查询词典 constructive interference

Based on this, aim at the disadvantage on Wigner Distribution and Fractional Fourier Transform that can't restrain noise interference effectively when be used to detect Linear Frequency Modulated signals interfered by heavy noises, we proposed a improved WD. Simulation results show that this method can restrain noise interference effectively and improve the ability of LFM signals detection. On the other hand, in multi-component cases, WD suffers from the cross-terms, which may impair some of the auto-terms. In order to separate original multi-component signals into components and reconstruct them separately, we can use the method of optimal filtering in fractional Fourier domain. But this method also has a problem that if signals have aliasing in the fractional Fourier optimal domain as well, the reconstructed signals will be distorted. In this thesis, a novel method of quasi Fourier transform is proposed in order to solve the problem of multi-component signal reconstruction, and have good results.

在此基础上，针对Wigner分布和分数维傅里叶变换在处理高噪声背景下线性调频信号检测的问题时存在不能有效抑制噪声干扰的缺点，提出了改进Wigner分布的办法，该方法能够抑制噪声，提高信号的检测能力；针对Wigner分布在处理多分量非线性调频信号时存在干扰项的缺点，以及分数域最优滤波方法在处理多分量非线性调频信号分离重构问题时存在的局限性，该局限性表现为在对最优分数域上也有信号分量重叠的情况进行处理时重构信号发生畸变，提出了新颖的类傅里叶变换的方法，该方法对在最优分数域上也有信号分量重叠的情况也能处理，得到的重构信号失真很小。

There is some narrow band interference in the received signal which will severely damage the application. The experiments indicate that the interference can be cancelled by adaptive trap filter very well.

利用开发出的测量系统对接收中存在的干扰进行了研究，针对实际中出现的干扰，采用自适应陷波滤波算法，能较好的克服该干扰。

In order to understand the patterns of water infiltration in furrow irrigation,based on lab experiment under furrow infiltration,a two stage infiltration model of furrow interference infiltration was founded and the reduced infiltration characteristics of furrow interference infiltration to furrow free infiltration was researched.

为进一步探明沟灌灌水沟的水分入渗规律，通过室内沟灌入渗试验，分析了沟灌交汇入渗的入渗规律，建立了沟灌交汇入渗的二阶段入渗模型，研究了沟灌交汇入渗相对与沟灌自由入渗的减渗特性。

Young's two slits interference of discrete double light source is numerically simulated,and the curve of visibility, curve of light distribution and interference pattern are solved with different type of line and line width.

对分立双谱线光源的杨氏双缝干涉进行模拟，求解出不同线型和线宽时干涉条纹的可见度曲线、光强分布曲线和干涉图样，用直观的计算机图形说明了分立双谱线的线型和线宽对干涉条纹的影响。

Through surveys the He-Ne laser wave length, the sodium lamp, the white light interference experiment, the discussion stripe change and two plane mirror's inclination angle and the parallelism relations, quick observation white light interference skill and principle.

通过测量He-Ne激光波长，钠光、白光干涉仪的实验，讨论条纹的变化与两个平面镜的倾角与平行度的关系，快速观察白光干涉仪的技巧和原理。

The reason for imposing this ban was to prevent interference to television reception (which is susceptible to interference from CB radio due to the compact environment in Hong Kong).

这个禁令最主要的原因是防止因本地挤迫环境及人烟稠密而引起电视的干扰。

Interpath interference which arises due to non-zero cross and auto correlation of more than one spreading code is suppressed by estimating a transmitted signal stream, or a plurality of such signal streams in the case of a plurality of multipath components, respreading this estimated signal and subtracting non-orthogonal interference contributions from a received signal.

通过估计发射信号流或者存在多个多径成分时的多个信号流、将所估计的信号再扩频、并从接收信号中减去非正交干扰分量，抑制不止一个扩频码的非零互相关和自相关引起的径间干扰。

At the same time, we studied the influence of quantum interference on the squeezing spectrum of the resonance fluorescence emitted from a V-type three-level atom and a -type four-level atom which are driven by coherent fields. We showed that quantum interference can greatly enhance squeezing in the components of phase quadratures at atomic frequency and change the squeezing spectrum .

同时，我们还研究了量子干涉对V型三能级和型四能级原子共振荧光压缩谱的影响，结果表明，量子干涉可显著加强原子跃迁频率分量的相位压缩效应和改变压缩谱的形状。

Two interferometric complementarities—between path distinguishability and the visibility of single-particle interference fringes and between the visibilities of one- and two-particle interference fringes— have been experimentally testified in NMR macroscopical ensemble, which is the experimental demonstration of quantum properties of NMR ensemble system. Meanwhile, the experimental results also provide the quantum mechanical foundation.

在宏观的NMR系综中，实验验证了两种干涉互补性：量子态演化的路径可区分度和单粒子干涉条纹可见度以及单粒子干涉条纹可见度和两粒子干涉条纹可见度之间的互补原理，这是NMR系综量子特性的实验演示，为NMR量子信息处理提供了量子力学基础。

However, although it has the reliability which like on states high, antijamming ability stronger, but works as production environment is too bad, electromagnetic interference specially intense, or installs uses is improper, possibly creates the program error or the operation mistake, thus produces inputs by mistake and causes outputs by mistake, this will be able to create the equipment out of control and the disoperation, thus will not be able to guarantee PLC the normal operation, will have to enhance the PLC control system reliability, on the one hand will request PLC to produce the factory to enhance the equipment the antijamming ability; on the other hand, in the request design, the installment and the use maintenance cause highly takes, coordinates to be able in every way to consummate solves the problem, effectively strengthens the system the resistance to interference.

然而，尽管有如上所述的可靠性较高，抗干扰能力较强，但当生产环境过于恶劣，电磁干扰特别强烈，或安装使用不当，就可能造成程序错误或运算错误，从而产生误输入并引起误输出，这将会造成设备的失控和误动作，从而不能保证PLC的正常运行，要提高PLC控制系统可靠性，一方面要求PLC生产厂家提高设备的抗干扰能力；另一方面，要求设计、安装和使用维护中引起高度重视，多方配合才能完善解决问题，有效地增强系统的抗干扰性能。

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。