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- acoustic holography system 水声全息系统
- 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。
- 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
- 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。
- 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。
- Experimental results show that this method can get better filter effect and real-time measurement of conoscopic holography system. 实验证明,此算法能够很好地滤除噪声干扰,并满足锥光全息系统的测量实时性要求。
- The study provides some theoretical and experimental guidance for the design and operation of a digital holography system. 这一研究为数字全息系统的设计和操作提供了一定的理论和实验指导。
- Application of Time Slice to Imaging System Using Acoustic Holography 全息摄影的图像系统中时间片的应用
- near field acoustic holography (NAH) 近场声全息
- 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。
- This paper presents the acoustical holography method which can be used to identify noise source on a moving vehicle. 本文提出利用声全息原理,对运动状态下的汽车噪声源进行识别的方法。
- In order to overcome the windowing effects and wraparound errors, statistically optimal planar near_field acoustical holography (SOPNAH) is used. 为了克服窗效应和卷绕误差 ;引入了统计最优平面近场声全息技术 .
- ITERATIVE NEAR-FIELD ACOUSTIC HOLOGRAPHY WITH K-SPACE FILTER 波数域滤波迭代近场声全息
- Characteristics of the discrete real-space Green's function and particularities of the discrete algorithm of the planar acoustical holography reconstruction convolution are analyzed. 摘要分析了实空间离散格林函数的特点和平面声全息重构卷积计算的特殊性,推导了在重构条件下二维循环卷积与重构卷积的关系。
- Research of the DMD in a Digital Synthetic Holography System 数字合成全息系统中空间光调制器DMD的研究
- Wavelet based acoustic holography method for moving sound source identification 基于小波分析的声全息识别运动声源的方法
- Research on acoustic holography method for the identification of sound source 用于声源识别的声全息重建方法的研究
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。