In this article, PLL theory, design of loop filter and phase noise theory are introduced at first.
本文先介绍了锁相环的工作原理，环路滤波器的设计并对相位噪声的理论进行了阐述。
Impact noise theory is used to study the noise properly from the type 1515 loom and to identify the noise source.
从撞击噪声形成机理出发，分析了1515型自动棉织机噪声的声学特性和主声源。
The mathematical model of traffic flow and traffic noise was established in this paper upon the fluid mechanics and noise theory.
利用流体力学与噪声理论建立了交通流和交通噪声数学模型。
A new method for testing the video signaltonoise ratio (SNR) of television tracking system was brought forward, in which 3D noise theory and digital image processing technique was adopted.
提出了一种采用三维噪声理论和数字图像处理技术对电视跟踪系统视频信噪比（SNR）进行测试的新方法，并给出了测试系统的结构框图和部分测试结果。
In this paper, the noise theory of monolithic multi-quantum-well passively mode-locked laser diodes (MLLDs) is discussed, and the phase variation curve with carrier population of MLLDs is found.
对多量子阱被动锁模半导体激光器的噪声理论进行了系统的分析，并给出了半导体激光器腔内相位随载流子浓度变化的关系。
Research is carried out on the discrete noise theory and calculation method, the calculation model of discrete noise and the approximate formula under small Mach number are verified by experiments.
对低马赫数叶轮离散噪声的机理及计算方法进行了研究，并推导了离散噪声的声压计算式、低马赫数下近似计算式和轴心线上的计算式，还实验验证了计算模型。
Additionally, the signal-to-noise theory tells us that anything that doesn't add to the message or function of a website (the signal) gets in the way and makes the design less effective (the noise).
此外，信号噪音的理论告诉我们，给网站(信号)的信息和功能添加额外的东西，只能令到网站设计效果更差(噪音)。
Information theory generalises this idea via theorems that capture the effects of noise with mathematical precision.
信息论用数学精度捕获噪声影响的定理概括了这一思想。
Claude Shannon the genius mathematician and engineer for Bell LABS who founded information theory showed how redundancy-repeating the message — compensates for noise.
克劳德·沙农是贝尔实验室的一个数学天才和工程师，他建立了信息加工理论，该理论认为多次重复弥补了噪音的影响。
Due to the basic theory of acoustics:the fundamentality reason of noise is vibrate.
由声学的基本原理可知：产生噪声的根本原因是振动。
The microwave solid state noise diodes are investigated based on the PN junction avalanche multiplication theory with tunneling penetration.
本文以带有隧道穿透的PN结雪崩倍增理论，研究了微波固体噪声二极管。
A method of sound detection under strong noise conditions is advanced applying the theory of differential amplifier and utilizing transducers having different sensitivities.
提出了应用差动放大理论和灵敏度不同的传感器来完成强噪声环境下微弱声信号提取的方法。
Based on discrete random vibration theory, recurrence formulas are developed to calculate the dynamic response of structures under white noise excitations.
基于随机振动的离散分析理论，推导出白噪声激励下结构动力响应的递推公式。
Based on self adaptive noise countervailing method and artificial neural network (ANN) theory, this paper proposes a new approach to the dynamic detecting harmonics.
基于自适应噪声对消技术及人工神经网络(ANN)理论，提出了一种谐波电流动态检测方法。
Speed is reduced, the pump flow rate will increase instead, and the noise of the pump will be lower, but certainly can't flow theory.
转速降低以后，泵的流量会反而增加，而且泵的噪音会降低，但肯定打不到理论流量。
The theory of symmetrical function is used to suppress additive stationary random noise; assumption is that the signal and the noise are mutually uncorrelated.
文中利用对称相关函数理论，分析了抵消平稳随机过程中与信号不相关的加性随机噪声的机理，并应用于线谱信号检测。
According to the theory of the algorithm, the noise elimination algorithm based on noise model can also be extended to the other compression algorithms such as DCT, DPCM, JPEG, SPIHT and MPEG.
从算法的理论基础来看，其中基于噪声模型的噪声清除算法对其他编码算法(如dct、DPCM、JPEG、SPIHT、MPEG等等)同样具有推广意义。
As an important method of data mining, rough set theory is a powerful mathematical tool to deal with uncertainty and noise.
约略集理论是一种能处理数据中不确定和噪音的有效数学工具，是数据挖掘的重要方法。
Singular value is extracted as to feature of cylinder explosive noise signal from Cover Matrix with singular value theory.
利用奇异值理论提取包含矩阵的奇异值作为气缸爆发噪声信号的特征。
A unified theory for calculating the noise radiation of an infinite elastic plate excited by turbulent boundary layer pressure fluctuations is presented.
本文提出一个统一的理论计算湍流边界层压力起伏激励下无限大弹性板的噪声辐射。
The theory of noise attenuation by patterns is the same whether applied to the shot or the geophone end of the wave trajectory.
应用组合方法压制噪声的原理，不论对炮点还是对栓波器波的轨迹终端都是一样的。
Relationship analysis method of gray system theory was adopted to compare and estimate municipal noise pollution situation in this paper.
采用灰色系统理论的关联分析法，对城市噪声污染状况进行综合比较评价。
Based on self adaptive noise countervailing method and artificial neural network (ANN) theory, an approach for harmonics detection and analysis is presented.
基于自适应噪声抵消方法和人工神经网络(ANN)理论，提出一种谐波电流检测分析方法。
Aiming at the traffic noise problem of Lhasa, the author USES artificial neural network theory and method to predict the equivalent consecutive sound level of traffic noise in Lhasa.
针对拉萨市道路交通噪声污染问题，运用人工神经网络理论和方法对拉萨市道路交通噪声的等效连续声级进行预测。
Through theory computation and analysis, the source of noise and transfer paths corresponding to every noise peak value are confirmed, the main aim to decreasing noise is pointed out.
通过理论计算和分析确定了噪声频谱图中各噪声峰值对应的噪声源及其传递路径，指明了压缩机降噪的主要目标。
Based on the Gaussian signal detection principle under Gaussian noise, the correlation detection is analyzed in theory.
从高斯噪声中高斯信号的检测原理出发，对相关性检测器进行了理论分析。
The smooth operator is inferred based on the Optimal Discrete Filter's theory, which can reduce the influence of noise, false edges and image error.
在最优滤波器理论基础上，推导出离散域的最优平滑算子，抑制了图像的分割错误、噪声和伪边缘的影响。
And derived the expressions of parameters in teeth vibration equation, which completed essentially the theory of noise prediction and CAD on gears of transmission systems.
导出了轮齿振动方程序中各参数的表达式。初步完成了传动系齿轮部分的噪声预估及CAD的理论研究工作。
So the adaptive theory has been introduce to realize the noise signal cancelling.
为此，作者通过引入自适应理论来实现铁道信号中噪音的对消。
According to air horn design theory, JQF low noise air horn device with partial acoustical enclosure has been designed.
按照声号筒设计原理，研究设计了JQ F型低噪声局部隔声罩风笛装置。
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