acoustical holography
英
美
声全息术；传音照相术
双语例句
- The president had an audience with the Pope in the Vatican
总统在梵蒂冈谒见了教皇。 - 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 - The mathematical formulas and their physical meaning of the object-hologram-image transforms in acoustical holography
声全息成象过程中物全息图象之间变换的数学公式及其物理意义 - Pulsed argon ion laser and its application to acoustical holography
脉冲氩离子激光及其在超声全息中的应用 - 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。 - 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 - 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。 - This paper presents the acoustical holography method for the identification of moving sound source.
利用声全息方法分析运动声源的噪声辐射。 - Characteristics of the discrete real-space Green ′ s function and particularities of the discrete algorithm of the planar acoustical holography reconstruction convolution are analyzed.
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。 - Study on inaccurate problem of reconstruction result by planar near-field acoustical holography
平面近场声全息重建结果不准确性问题的研究 - The reconstruction of reflection coefficients using active Near-field Acoustical Holography is based on the theory of wave acoustics.
利用主动式近场声全息方法反演全向声反射系数，是一种基于波动声学理论的声学测量方法。 - Alias Error in Discrete Convolution of Reconstruction of Near-Field Acoustical Holography
声全息重构卷积计算中混迭问题的研究 - 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。 - The researches on near field acoustical holography ( NAH) are reviewed.
回顾近场声全息（NAH，nearfieldacousticalholography）理论与应用的发展历史及国内外研究现状。 - Study on statistically optimal cylindrical near-field acoustical holography
统计最优柱面近场声全息 - The statistically optimal planar near-field acoustical holography ( SOPNAH) was introduced, a simple and effective method was proposed to choose the wave number vector.
为此，引入了统计最优平面近场声全息（SOPNAH）技术，并提出了一种确定波数矢量的新方法。 - The application of FFT-based planar near-field acoustical holography ( FFT-based planar NAH) is mostly restricted by its required size of holographic plan.
基于空间傅里叶变换的平面近场声全息（FFT-basedplanarNAH）技术对全息面尺寸的要求，在很大程度上限制它的应用范围。 - Using acoustical holography, some interesting results are shown about the different noises of a high speed vehicle, such as engine noise, tire noise and aerodynamic noise.
它能够用来分析汽车在高速运动过程中发动机的噪声、轮胎噪声和空气动力学噪声。 - The principle of statistically optimal planar near-field acoustical holography and the sound field separation technique
统计最优平面近场声全息原理与声场分离技术 - 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 - The research of near-field acoustical holography
近场声全息成像方法的研究 - Unequally spaced sampling is also useful in other forms of imaging system besides acoustical holography.
非均匀取样成像对各种取样成像系统取样方式的选择都具有参考价值。 - The results proved that the acoustical holography is an effective method in identification of noise source on a moving vehicle.
通过低速和高速实验表明该方法是一种有效的方法，能够快速、准确识别运动车辆的噪声。 - As an efficient and powerful way of sound field analysis, the planar near-field acoustical holography ( NAH) has been widely applied to study the sound field and the vibration modes and radiating field of vibrating object.
平面近场声全息作为一种有效的声场分析方法被广泛用于声场分析和振动体的振动模态及其辐射声场的研究。 - Some interesting results are obtained about the noise of a vehicle, which show acoustical holography is an effective method for noise source identification and have obvious advantages in some aspects.
利用声全息分析方法对一辆汽车进行了噪声分析。结果显示声全息方法也是一种有效的噪声源识别手段，在一些方面还有较大的优越性。 - In view of the actual condition, this paper paid more attention to the cylinder acoustical holography algorithm in half-free space that is more applied.
针对于实际工况，重点研究了半自由空间中柱面声全息的算法，使声全息理论更加贴合实际。 - For more completely perform fault diagnosis for machineries by using sound signal, a more efficient fault feature extraction technique based on acoustical holography is needed.
为了能更全面地利用噪声信号对机械设备进行故障诊断，需要一种更有效的故障特征提取技术。 - Near-field acoustical holography technology can be used for recording radiated acoustic field and vibration mode of vibrating object effectively, and reconstruction results are not bound by Rayleigh criterion& which avoids the impact of vibrating frequency for reconstruction resolution.
近场声全息技术可以更好的记录声源和振动体的辐射声场和振动模式，重构结果不受瑞利判据约束，从而避免了声源或振动体频率对重构分辨率的影响。 - Since the early-1980s birth, near field acoustical holography ( NAH) has become a powerful tool of the reconstruction of three-dimensional space sound field and noise source separation and identification.
自从20世纪80年代近场声全息技术诞生以来，这项技术已逐渐成为重建三维空间声场和识别噪声源的有力工具之一。 - It can reconstruct the sound field accurately and can be the supplementation of STSF. Finally, to confirm the solution proposed by this article, a near field acoustical holography experiments are carried out.
最后，为了检验本文提出算法的有效性，进行了近场声全息水池试验。