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- The cyclostationary near field acoustic holography (CYNAH) technique is proposed for cyclostationary sound fields in previous papers. 摘要与普通近场声全息理论相比，循环平稳近场声全息理论可以更好地用于分析循环平稳声场。
- near field acoustic holography (NAH) 近场声全息
- Near Field Acoustic Holography Based on the Distributed Source Boundary Point Method 基于分布源边界点法的近场声全息技术
- A Study on Noise Sources Identification Using Near Field Acoustic Holography Method and Its Numerical Simulation Analysis 噪声源识别的近场声全息方法和数值仿真分析
- near field acoustic holography 近场声全息
- REVIEW AND OUTLOOK OF RESEARCHES ON NEAR FIELD ACOUSTICAL HOLOGRAPHY THEORIES WITH APPLICATION 近场声全息理论与应用的研究现状与展望
- scanning near field acoustic microscope 扫描近场声显微镜
- ZHANG Guxiang,HE Zuoyong,ZHANG Bing.Near-field acoustic holography on underwater sound sources. 张德俊;夏献华;鄢锦;程建政;王群;朱念秋.;近场声全息成像方法的研究
- Previous HRTF measurement were lack of near field data. 以往在实际测量头相关传输函数时，缺乏近场数据。
- In order to eliminate Doppler effects in moving sound source identification by acoustic holography,a wavelet transform based method was presented. 在声全息法识别运动声源理论的基础上,建立了基于小波变换消除多普勒效应的方法。
- Therefore, there are no problems such as parameters interpolation, singular integration etc. in WSA based acoustic holography, which are inherent to BEM based NAH. 因而 ;基于波叠加法的声全息就不存在边界面上的参数插值和奇异积分等问题 ;而这些问题是基于边界元法的声全息所固有的 .
- The distributed source boundary point method(DSBPM) based nearfield acoustic holography(NAH) is used for identifying and localizing noise sources of the roots vacuum pump. 采用基于分布源边界点法的近场声全息技术对运转状态下的罗茨真空泵进行了噪声源识别和定位研究。
- The calibration results using MFCT close to the results by near field. 与近场校正结果比较，两者相近。
- According to the principle of near-field acoustic holography (NAH), the system of data acquisition and analysis needed in holographic experiments have been constructed. 根据近场声全息(NAH)的原理,建立了全息实验所需要的采集、分析系统。
- The beam quality is good and the near field is avoid of filamentation. 在光的场形上，远场的角度可达到绕射极限的角度。
- The application of probabilistic analysis approach in the near field modeling of ocean outfall. 概率分析法在污水海洋排放近区模拟中的应用。
- The cylinder"s RCS of TM and TE,as well as the near field distribution are presented. 利用这个等效网络分析了多个分层偏心介质圆柱对TM和TE波的散射截面。
- This method is especially fit for the situation of multifocus focusing in the near field. 该方法尤其适用于多焦点近场聚焦的场合。
- The electric field intensity decay is 40 dB per decade of distance in near field of a magnetic dipole. 磁偶极之近场辐射电场强度随距离每增十倍衰减四十分贝。
- This paper presents a new technique named acoustical holography that can be used for analysis and study of noise. 本文介绍了一种用于噪声分析研究的声全息技术。
