基本解释：近程声场
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The influence of elementary parameter change on the crossing-coupling of acoustic coupling array, and the near-field acoustic pressure of the elementary transducer are analyzed theoretically.提出对声对接阵阵元参数进行控制,以达到提高声对接阵系统精度的目的,并对由于阵元参数改变而引起对接基阵各个阵元之间的交叉耦合的影响以及阵元的近场声压进行了理论分析和计算机仿真计算,结果证明该方法是有效的。
In order to counteract verification method s weakness of sealed coupler, we research a new verification method for frequency weighting character and frequency record of sound level meter s low frequency part, making use of some special characters of near sound field on the piston sound source s axis.利用活塞声源轴上近声场一些特殊性质,探索声级计低频段频率计权特性和频率响应新的检定方法,以弥补封闭偶合腔检定方法的不足。
Study on the Surface Noise Prediction for Aircraft Cruise飞机巡航近场噪声经验预测方法研究
Study on Sound Source Identification Based on Patch Near-field Acoustical Holography基于局部近场声全息的噪声源辨识研究
Active Noise Control Using Near-Field Strategy in Local Free Space采用近场误差策略的自由场局部有源噪声控制
Experimental research on near field pressure fluctuation and far field aerodynamic noises in a cross flow fan贯流风机近场压力脉动与远场噪声的试验
The near field focused beamforming method for ship rediated noise舰船噪声源近场聚焦波束形成定位方法
Fault Feature Extraction Technique Based on Patch Near-Field Acoustical Holography基于局部近场声全息的机械噪声源特征提取技术
Acoustic-Based MVDR Algorithm for Vector Array Applying for Near-Field Noise Source Location Method基于MVDR算法的声矢量阵噪声源近场定位方法研究
Acoustics--Determination of sound power levels of noise sources using sound pressure--Engineering method in an essentially free field over a reflecting planeGB/T3767-1996声学声压法测定噪声源声功率级反射面上方近似自由场的工程法
Two Dimensional Near Field Sources Localization Based on Third-Order Cyclic Moment in Multiplicated Noise乘性噪声背景下基于三阶循环矩的二维近场源定位方法
The loud noise from the nearby factory chafed him.附近工厂的噪声使他烦燥。
Asymptotic representation for PDF of Alpha stable distributionAlpha稳定噪声PDF的近似估计
Acoustics--Guidelines for the design of low-noise workplaces--Noise control strategiesGB/T17249.1-1998声学低噪声工作场所设计指南噪声控制规划
The Change of Acoustic Stapedius Reflex Amplitude with the Stimulation of the Wide Band Noise in Sound Field声场下噪声刺激对镫骨肌声反射幅值的影响
distributed emission crossed-field noise-generator分布发射式正交场噪声发生器
Standard of aircraft noise for environment around airportGB9660-1988机场周围飞机噪声环境标准
Measurement of aircraft noise around airportGB/T9661-1988机场周围飞机噪声测量方法
injected-beam crossed-field noise generator注入式正交场噪声发生器
SOUND FIELD STRUCTURE AND MEASUREMENTS OF SHIP SELF-NOISE舰船自噪声场结构及其实验研究方法
