查询词典 constructive interference

For the problem that the suppression of co-channel interference and suppression of noise can't be balanced in signal-to-jamming and noise ratio maximization method for the linear precoding of multiuser multiple-input multiple-output downlink systems, an improved scheme that the term of noise variance is modified as a piecewise linear function is proposed, in which the balance between suppression of co-channel interference and suppression of noise can still be maintained even when the noise variance is a small value through piecewise modifying the term of noise variance, and thus the bit error rate and capacity of the systems are further improved.

针对多用户多输入多输出系统下行链路线性预编码的信干噪比最大化方法中，共信道干扰抑制和噪声抑制不能有效平衡的问题，提出将其中的噪声方差项修正为以噪声方差为变量的分段线性函数的改进方案。该方案通过对噪声方差项的分段修正，在噪声方差的值较小时依然能够保持共信道干扰抑制和噪声抑制间的平衡，从而使系统的误比特率性能和容量得到进一步提高。

Topics covered include, the properties of light and its interaction with mineral grains: reflection, refraction, polarisation, interference phenomena, extinction, colour and pleochroism. Refractometry inclusive isotropic, uniaxial and biaxial optics and the interpretation of interference figures. Transmitted light petrography in the identification and familiarisation with major rock forming minerals in grain mounts and thin section.

讲稿内容涉及到光学属性分析与矿物交叉面相互反应，具体内容有反射、折射、偏振、光干涉现象（包括等方性、单轴、二轴光学及干涉数据解释）、岩石记述学、矿物的光学属性鉴定等方面。

Interference fit: results in an interference between the two assembled parts--the shaft is larger than the hole, requiring a force or press fit, an effect similar to welding the two parts.

过度配合：在两个装配在一起的零件之间或者存在着过盈，或者存在着间隙的配合——轴可以小于或大于孔，但仍在规定的公差内。

A specially designed prismoid that generates interference of four beams with binary symmetry is fabricated and optical interference field is observed with an optical microscope.

实验上用光学显微镜拍摄了双模结构的光场分布。

This paper studies the application of smart antennas to the downlink in the FDD-CDMA. We estimate thedownlink channel covariance matrix and the relative interference to users of the other cells by using the uplink data., and present a method for downlink beamforming , i. e., we obtain the minimum relative interference to other users while the constanttransmitting power is guaranteed.

本文研究了智能天线在FDD-CDMA中的下行链路的应用，利用上行链路接收数据，估计了下行链路的信道相关矩阵和对其它小区用户的相对干扰总量，给出下行链路的波束形成方法，即在保证一定的有效发送功率的同时，使得对其他小区的用户干扰最小。

A fast high precision multichannel MSC1210- based system for measurement of the coil resistance of electromotors is introduced in this paper. The fundamental of the system is discussed. The hardware and software designing as well as the major characteristics of MSC1210 is introduced. Better anti interference measures are considered in software and hardware designing to reduce the exterior influence. And the error analysis of the system is carried out. The system has the merits of high precision,low noise,strong anti interference,convenient operation and so on.

文章阐述了以一种新型单片机MSC1210为核心的多通道、高精度、快速测量电动机绕组电阻的测量系统及其基本原理，介绍了MSC1210单片机的主要特性及系统的硬件设计和软件设计，采用了软件和硬件抗干扰技术以减小外部干扰对系统的影响，并对该系统进行了误差分析，具有准确度高、噪声低、抗干扰能力强且操作方便等优点。

The open design methods, user-friendly according to our own needs, for various extensions, and includes common interfaces. mainly covers the right ring tone detection circuit design, automatic Abstract hook, Transceivers serial communication theory, AT89C51 control circuit characteristics of the structure and principle C language of communication microcontroller programming software design; Due to the communication process interference factors exist, Therefore, the circuit design using the interference method.

采用开放式的设计方法，便于用户根据自身需求，进行各种扩展，包含常用接口，主要包括对振铃音的检测电路的设计，自动摘挂机，收发器串行通信的设计，控制电路AT89C51单片机和固态继电器，用C语言实现单片机下的软件编程，由于考虑到通信过程中存在干扰因素，所以对电路采用抗干扰设计的方法。

Yang's interference is chronically thought as the interference of energy and so on, this book comprehensively investigates relative experiments, integrates issues, clarifies thought, make conclusions, and never bring forward self hypothesis and construct model in addition to surprise the scientific circle, so the success of this book attributes to the senior physicists, it is their sweat experiments which settle the basis of this book.

Yang 的干涉被习惯性说成是能量的干涉等等，本书就是全面考察相关实验，梳理问题，理清思路，归纳总结，并没有提出自己的假设和另造模型去惊讶科学界，因此本书的成就归功于前辈物理学家们，是他们的辛勤实验奠定了本书的基础。

Furthermore, due to human activity and the formation of the electromagnetic field radiation on cells in the life course and its "self-feeling" to carry out gross interference, especially in recent years, such interference is increasing.

再说，由于人类活动而形成的电磁场辐射对细胞的生命过程及其"自我感觉"进行粗暴干涉，尤其是近些年来这种干涉越来越大。

Based on Matlab, simulation program of grating diffraction is complied. By changing adjustable parameters, computer simulations of white light interference and diffraction experiments (i. e., grating diffraction, single slit and double-slit diffraction, double-beam and multi-beam interference experiments) can be achieved.

基于Matlab软件编写出白光光栅衍射仿真程序，通过改变可调参数实现白光干涉、衍射实验（包括：光栅衍射、单缝及双缝衍射、双光束及多光束干涉等）的计算机仿真。

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。