The invention relates to a noise attenuation for an internal combustion engine.
本发明涉及用于内燃机的噪音衰减。
T-X and F-X prediction filtering methods are common noise attenuation techniques.
和F-X等预测滤波方法都是常用的噪声衰减技术。
Noise attenuation of seismic data processing is one of the key questions that can not be ignored.
噪声衰减是地震资料处理中的关键问题之一。
The results well agree with data obtained from the noise attenuation performance test of the exhaust muffler.
模拟结果与消声器消声性能的试验测试数据具有较好的一致性。
This paper introduces an image processing technique into seismic data processing as a noise attenuation technology.
实际资料处理结果表明本文提出方法的去噪应用效果显著。
The panels are lightweight and environmentally sound (they are totally recyclable) and provide some noise attenuation.
这些板材具有轻质、环境友好(可完全重复利用)和隔声吸音的性能特点。
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。
The noise attenuation characteristics of complex muffler are investigated by 3D finite element analysis based on the study on simple muffler.
在利用三维有限元法研究简单结构的消声器的声学消声性能基础上，对于复杂结构的消声器进行了声学性能预测。
In a digital common-mode noise attenuation system for switching power converters, one of the key issues is the estimation of common-mode noise.
在电力电子开关变换器数字化共模噪声抑制系统中，一个重要环节就是共模噪声的评估。
The acoustic character controlled by the active noise attenuation system in ducts has been analyzed in detail on premise of semi-infinite ducts.
在假设半无限长管道的前提下，详细分析了噪声有源控制系统作用下的管道声场特性。
AFCN (adapted fuzzy cluster neural network) is introduced to keep up trade-off between noise attenuation and detail preservation in image processing.
为了获得滤除噪声和细节保留两方面更好的平衡，提出了一种自适应模糊聚类神经网络。
Under the circumstances of having the same intensity, the method achieving better efficiency of noise attenuation is the method of better amplitude fidelity.
在相同去噪强度的情况下，获得较高去噪效率的方法就是保真性好的方法。
A new approach named swell noise attenuation, which is based on spatial median filter arithmetic, can be adopted to suppress such a noise with some limitations.
基于空间中值滤波算法的巨浪噪声衰减技术对于此类噪声的衰减效果良好，但其应用存在一些限制条件。
Noise attenuation section should be in place where is wide, relatively light discrepancy in elevation, and where the earth's surface vegetation of present position is representative.
噪声衰减断面应选在开阔、高差较小的地方，所处位置地表植被具有代表性。
This paper presents a new adaptive multilevel median filter based on direction information measure to solve the contradiction between noise attenuation and image details-preserving (edge-preserving).
针对图像滤噪中滤除噪声和保护细节(边缘)的矛盾，本文提出一种新的基于方向信息测度的自适应多级中值滤波器。
To counter the characteristic of suppress jamming and center of mass jamming, this paper establishes the models of noise jamming, signal power attenuation and center of mass jamming.
针对压制干扰和质心干扰的特点，分别建立了噪声干扰模型、信号功率衰减模型和质心干扰模型。
Computer simulations also validate that the good attenuation effect can be obtained in the active self noise canceler if the signal component in the reference input is small.
同时，计算机仿真说明，只要参考输入中信号分量较少，自噪声有源抵消器仍然可以达到较好的降噪效果。
But whether it can reach the prospecting aim by study for inversion of attenuation by earth absorption and by decreasing high frequency noise?
但是否可以通过研究反演大地吸收衰减和减少采集的高频噪声达到勘探的目的呢？
The rocket exhaust plume causes the effects of noise, smoke, flame and heat radiation, environment pollution and signal attenuation, etc. So it is important to study exhaust plume.
火箭羽流会造成噪声、烟雾、热辐射、环境污染和信号衰减等多种效应，因此研究排气羽流问题至关重要。
This paper analyzes the impedance, noise and attenuation characteristics of PLC channel and introduces the PLC channel model which will help us understand PLC further.
文中分析了电力线信道的阻抗、噪声、衰减特性，据此给出了电力线信道模型，有助于深入理解低压电力线通信的特点。
With displacement operator method the total quantum noise is obtained, and a quantum channel model with attenuation and noise is proposed.
用位移算符方法计算量子噪声的累加，同时建立了有衰减和噪声时的信道的量子模型。
Through this paper, the low-voltage power line network and channel characteristics are researched. The noise and attenuation characteristics of power line channel are measured and analyzed.
本文首先分析了低压电力线网络的特点及信道特性，对电力线信道的噪声和复衰减特性分别进行了测量及分析。
But, there exists serious noise and channel attenuation in power line and they affect the quality of communication seriously.
但由于电力线路存在着强噪音、信道衰减等原因，严重影响了通信质量。
First, power line Communication is introduced. The noise and attenuation characteristics of power line channel are measured and modeled.
首先，介绍了电力线通信，测量并分析了电力线信道的噪声和复衰减特性，并分别进行了建模。
First, power line Communication (PLC) is introduced. The noise and attenuation characteristics of power line channel are measured and modeled.
首先，介绍了电力线通信(plc)，测量并分析了电力线信道的噪声和复衰减特性，并分别进行了建模。
Noise is one of important errors in attenuation measurement, especially in the large attenuation measurement.
在微波大衰减测量中，噪声是一项主要误差来源。
Noise is one of important errors in attenuation measurement, especially in the large attenuation measurement.
在微波大衰减测量中，噪声是一项主要误差来源。
应用推荐