从对噪声源、噪声传播的控制以及防护设施方面提出技术和对策。
It also raises technical methods and countermeasures to control the noises sources, noises transition as well as prevention and protection facilities.
从对噪声源、噪声传播的控制以及防护设施方面提出技术和对策。
It also raises technical methods and countermeasures to control the noises sources, noises transition as well as prevention...
研究了影响目标噪声传播的因素：空气温度、湿度、风速、风向及大气中的雨雪等。
Study on several factors influent the targets acoustic signal's transmission such as: air temperature, air humidity, wind velocity, wind direction, rain and snow.
因此了解单台或多台热泵的噪声传播特性，探讨热泵机组群噪声防治的方法，具有一定的普遍现实意义。
Therefore to understand a single pump or more transmission characteristics of the noise, heat pump unit base to explore ways to control noise, has a practical significance in general.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
镇海3 0 0MW燃气—蒸汽联合循环发电工程采用计算机技术对噪声传播进行模拟和预测，优化了隔声屏障的设计。
Computer technology was used to simulate and forecast the noise spread in Zhenhai 300mw gas steam combined cycle power generation project. The design of sound barrier was optimized.
石头的外部噪声会被内部感知，它在盒形模块中传播并且音量会因为本身的金属结构而扩增。
The outside noise of the stones is perceived inside, it resonate in the box-shaped modules and it's amplified by the metal structure itself.
但是电力线信道上存在的各种噪声、衰减和多径传播等问题，这些都大大提高了通信的难度。
But the noises, the attenuation and the multipath propagation inhering in the powerline make it very difficult to realize such kind of communication system.
在传播途径上降低噪声。
在调制信号前采用数据预编码，对接收信号进行相应译码，以消除信道中噪声引起的差错传播。
Error propagation caused by noise can be avoided by precoding the data at the transmitter prior to modulation and decoding operation of received signals.
建筑打桩施工的噪声和振动，由于在实际传播过程中的未知因素很多，难以建立较高精度的物理预测模型。
Physical prediction model is difficult to establish for noise and vibration in building construction due to unknown factors encountered in the actual propagation process.
本文讨论了与电波传播电路计算有关的各种因素，例如噪声、干扰和衰落，以及对它们的处理方法。
The various factors, such as noise, interference and fading, relating to radio wave propagation circuits, as well as the methods dealing with the factors are described.
这也是建立螺桨噪声向舱内传播模型的重要依据。
This is also an important basis to establish transmission Mode of Propeller noise to cabin.
本文研究了借助于系统地调控结构声传播性态以达到降低工程结构噪声目标的方法。
The paper discusses noise reduction in technical structures by means of systematically manipulating structure borne sound propagation.
考虑低空传播以及直接采样系统中adc器件的噪声，分析了低空探测时影响观测范围的主要因素。
The propagation at low altitudes and the ADC noise in the RF direct sampling system taken are considered, and the main factors which affect the coverage of low altitude detection is analyzed.
冲床在工作过程中辐射出的冲压噪声及其传播过程非常复杂。
The noise from punch press and its propagation is very complicated.
暗孤子对在这种系统中传播时，其亮背景会产生自激的噪声。
Selfexcited noises will grow on bright backgrounds of dark-soliton pairs when they are propagating in the system.
在分析了铁路振动与噪声及其传播规律的基础上，列出了减小铁路振动与噪声影响的方法。
Based on the analyses of the vibration and noise oft he trains and its propagation law, the methods for reducing the influence of them are put forward in this paper.
简要介绍了换流站换流阀的传导噪声的产生、传播方式以及对邻近的电力线载波通道的影响。
This article briefly introduces the produce of transmitting noise caused by converter valves, noise propagation mode, and its affection to adjacent power line carrier channels.
该方法基于传播算子思想，直接利用阵列接收信号估计噪声相关矩阵，得到一种快速TCT聚焦矩阵。
Based on the propagator method, noise correlation matrix is constructed by array signals and a fast TCT focusing matrix is developed.
分析了低空目标声源的产生机理、目标辐射噪声在大气中的传播特性以及影响其传播的几个主要因素。
The mechanism of the produce of target noise, its transmission characteristics in air and several main factors that influence the sound transmission are analyzed.
建立了目标噪声信号传播和衰减的数学模型。
Build target acoustic signal's transmission and attenuation math model.
本文分析了液压系统流量、压力脉动与噪声的关系，对系统的流体噪声产生与传播进行了一些探讨；
This paper has analyzed the relationship of flow, pressure pulsation and noise in hydraulic system, and has inquired into generation and propagation of fluid noise in the system.
介绍了客车地板传播噪声的途径和衰减噪声的措施。
The noise propagation ways and noise abatment measures by the floor in passenger cars are described.
本文试从船舶噪声的特性和传播途径分析，提出控制船舶噪声的措施。
From the ship's noise characteristics and transmission, the paper put forward the noise control measures for the ship.
该方法充分利用数据点间的相关性和位置信息，对数据点和噪声点采取不同的处理方式，避免了噪声的传播。
The correlation and relative location between data point is made the best use of, and data point and noise point is treated with different way, through which noise transmission is avoided.
检测量子效率(DQE)可被用来精确描述图像噪声通过成像系统的传播特性。
The detective quantum efficiency (DQE) can be used to accurately describe the image noise transfer characteristics through many imaging systems.
在风洞实验的基础上，提出了气流噪声向汽车内部传播的理论模型。
Proposes a theoretical model for aerodynamic noise transmitting towards interior cab of an automobile on the basis of the wind experiment.
具体地讨论了在热传导条件下色散关系的特殊性质和相应的等离子体低频噪声的传播形态。
The characteristics of the dispersive relation and the propagation of plasma low frequency noise are discussed in details.
由于各种噪声的影响，以及声发射信号传播过程的复杂性，又给声源的识别带来一定的困难。
Because of the noise and complex of AE signal transmission characteristic, the recognition of AE source is very difficult.
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