噪声源

AC算法的盲分离技术识别发动机的外部噪声源

Identification of Engine Surface Noise Source via Blind Separation Technique of AC Algorithms

W是一个零均值的白噪声源。

W is a zero mean white noise source .

AD－200轻型飞机舱内噪声源传声途径识别

Cabin noise source-path identification for ad-200 ultralight aircraft

基于Kalman滤波的反辐射导弹跟踪噪声源研究

The research of anti-radiation missile tracking noise source based on Kalman filter

1／f噪声源及MOS器件中的1／f噪声

1 / f Noise Sources and 1 / f Noise in MOSFET

Z源变换器通过改变噪声源阻抗抑制高频共模噪声

Z-Source Converter High Frequency Common Mode EMI Noise Suppression for Switching Converters by Impedance Control

宽带HFC网络回传通道噪声源的分析

The Analysis of Noise Source of Upstream Channel in Broadband HFC Network

它的主体是由一组高精度数字式微波IQ矢量调制器和一个噪声源组成的网络。

The set-up is a circuit network composed of a number of highly accurate microwave IQ vector modulators and a noise generator .

并编写了偏相干函数和小波函数噪声源识别的MATLAB程序，量化了各噪声源的贡献，使得各噪声的贡献清晰、明确。

Also , the partial coherence function and wavelet function of noise source identification MATLAB program were written . The contribution of various noise sources were quantified , making the noise contribution clearly .

采用基于SST湍流模型的宽频带噪声源模型得到了珠江城商务写字楼风洞口周围的噪声分布。

Broadband noise source model based on the SST turbulence model is used in the numerical simulation of the aerodynamic-induced noise distributions around the Pearl River Tower .

根据二端口器件的本征H参数和噪声源配置，推出了En-In模型的表达式方程。

According to the intrinsic H-parameters and noise source configuration of the two-port device , the E_n-I_n model equations are determined .

高速混合电路中的主要噪声源和EMC设计方法都有新的重要特点，传统的EMC设计方法已难以满足实际需要。

In high-speed hybrid circuits , the main EMI sources and EMC design techniques have new striking features , and conventional EMC design techniques can not meet the practical needs .

本文介绍了一种密封式匹配负载，以及将它置于冷、热态作为一种噪声源在低噪声FET放大器及毫米波混频器测试中的应用。

A sealed coaxial matched load at hot or cold condition used in the measurement of low-noise FET amplifier and millimeter wave mixer is described .

设计了具体的自适应线性相位任意时延FIR滤波器对舰船螺旋桨所辐射的高频噪声源进行了定向和定位。

Based on a adaptive arbitrary time-delay linear phase FIR digital filtering algorithm , a simulation experiment of determining the bearing and range of high-frequency noise source at a ship 's stern is done .

对于小目标，由于所利用的信息通常只有目标位置观测值和灰度值，我们用H无穷滤波器作为预测滤波器对其运动进行分析和跟踪，以适应多种应用环境下噪声源和外界干扰的不确定性。

For small target , since the target information utilized is only the observed location and gray information , we take H infinity filter as the prediction filter for motion analysis and tracking to adapt the uncertainty of noise source and exotic disturbance in multi-application environment .

通过分析噪声源经过地环路产生对负载骚扰的原因及途径，指明了抑制地环路电磁骚扰的几种有效途径及其应用，为提高系统的EMC能力提供参考。

The reasons and ways the noise source interferes with loads through ground loop are analysed , several valid methods and application of ground loop EMI are also given , which are the reference on improving the system EMC capability .

根据星点模型和质心误差计算模型量化分析了窗大小、星点模型方差、噪声源对APS亚像素质心定位的影响。

Based on the model of star point and error calculation mode , the deviation of sub-pixel centroiding due to the size of window , the variance of spot and the noises of APS are analyzed theoretically .

构建了基于外光反馈的混沌光通信系统模型，通过引入Langevin噪声源，建立了包含自发辐射噪声特性的主从式速率方程。

A chaotic optical communication system based on external optical feedback is constructed . By introducing the Langevin noise sources , the master-slave rate equations including spontaneous emission noise characteristics are deduced .

针对各噪声源采取了不同的降噪处理，使整车加速噪声明显降低，最大降低了5dB（A）。

The complete vehicle accelerating noise is obviously reduced by taking different measures , the maximum reduction value is 5dB ( A ) .

漏磁（MFL）检测信号常被多种噪声源污染，极大地降低了漏磁信号中缺陷信号的可检测性。

Magnetic flux leakage ( MFL ) testing signals obtained from oil pipelines are usually contaminated by various sources of noises , and therefore the detectability of defect signals in MFL data is considerably reduced .

通过测试EMI噪声源的最大和最小差模源阻抗和共模源阻抗，计算出差模和共模噪声源的大小，并以此为依据设计EMI滤波器。

The implementation of this method is to measure the maximum and minimum differential mode ( DM ) and common mode ( CM ) EMI noise impedance , and consider them in calculating the magnitude of DM and CM noise and designing the EMI filters .

APS星跟踪器探测灵敏度同APS噪声源、填充因子、量化效应、频谱响应和恒星的光辐射特性有关，其中，APS噪声和APS对恒星辐射的响应特性是主要影响因素。

The detection sensitivity of APS ( Active Pixel Sensor ) star tracker is related to APS noise source , fill factor , quantization effect , spectra response and star light radiation behavior . APS noise source and the stellar response of APS are the main influence factors .

结构噪声源识别的能量流分析方法

Energy flow analysis method of identification of structure borne sound source

用于汽车运动噪声源识别的随机阵列生成法

Random Array Generation Method for Identifying Noise Source of Moving Vehicles

用声模态技术识别内燃机噪声源

Noise source identification of internal combustion engine using sound mode technology

船用柴油机表面噪声源识别分析

Identification and analysis of surface noise sources of marine diesel engine

声强法识别大型客车主要噪声源

Identification of Main Noise Source of Coach with Sound Intensity Method

舰船辐射噪声源纵向分布的研究

Study on Longitudinal Distribution of Ship ′ s Radiated Noise Sources

近场声全息方法识别噪声源的实验研究

Experimental Research on Noise Source Identification Using Near-Field Acoustic Holography Method

基于小波变换的客车车内振动噪声源识别

Noise and Vibration Source Identification in Light Bus Based on Wavelet