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- Reduce tire/wheel unbalance and tire radiated noise. 减少车胎/轮不平衡性和车胎的辐射噪声。
- Abstract :A passive long wave cochlea model is applied to extract audial feature of naval vessel radiation noise. 摘 要 :为提取舰船噪声听觉特征,应用被动长波模型对舰船噪声进行了分析,得到噪声信号的二维时空分布。
- A separation method of naval ship radiated noise sources using measure data of radiated noise was introduced. 介绍一种从舰艇辐射噪声数据中分离辐射噪声源的方法.
- A method for extracting modulated information from radiated noise was discussed. 摘要讨论了一种从辐射噪声中提取调制信息的联合方法。
- Such damage can be caused by EMI or radiated noise from factory equipment surrounding the encoder. 这样的损坏可以是由编码器周围的工厂设备的电磁或放射性噪音所造成。
- Shielding is required because high impedance circuitry is susceptible to pickup of spurious radiated noise. 由于高阻电路容易拾取杂散的辐射噪声,所以需要采取屏蔽措施。
- The results show that the method can effectively separate the dynamic modulation from other parts of radiated noise, and extract harmonic features. 结果表明,该方法可以有效地实现动态调制分量与其他信号的分离,准确提取谐波特征。
- The simulation results are in accordance with the characteristics of the radiated noise at near distance in the foreign literature,which thus ... 仿真结果与国外文献提供的船舶水下辐射噪声近场特性吻合,验证了所建模型的正确性。
- Vibration characteristics of an engine oilpan are analyzed using FEM and radiated noise from the oilpan surface is researched. 利用有限元法分析某发动机油底壳的振动特性,对其表面辐射噪声进行研究。
- The result shows that these structural changes may help to lower the vibration of the oil pan, and finally reduce the radiated noise. 结果表明,改变加强板结构可以减小油底壳的振动,进而降低了发动机的噪声。
- Based on the physical causes and spectral characteristics of torpedo radiated noise line spectra, this paper researches on feature extraction of torpedo target . 基于鱼雷辐射噪声的物理特性和线谱特征,探讨了一种鱼雷目标特征提取方法。
- Low radiation noise based on its toroidal construction.? 环形结构辐射噪音低.
- A vector-hydrophone array simulator can generate the target radiated noise and the ambient noise.Its application can effectively shorten the developing cycle of a digital sonar. 模拟器可以模拟实际海洋环境中目标的辐射特性和噪声特性,应用模拟器可以有效地缩短声纳的研制周期。
- Designers say that the worst problem caused by a HANE's radiation is deep dielectric charging from the MeV-energy electrons. 设计人员指出,高空核爆辐射线所造成最大的问题,其实是拥有百万电子伏特能量的电子所形成的介电质电荷。
- The damage to the constant speed of Hawking s radiation done by motion layer around black holes is expounded and it is the important reason for the latter to remain undetectable. 本文论述了黑洞周围运动层对霍金辐射恒定速度的破坏,是后者至今仍无法探测到的重要原因。
- Compared with traditional DEMON analysis, the result shows that modulated information of radiated noise of naval ships can be extracted more quickly through wavelet and Hilbert transform. 其结果表明;相对于传统DEMON分析;利用小波以及希尔伯特变换可以更快更好地提取舰船辐射噪声的调制信息.
- The feature of radiated noise line spectra of underwater moving-target was extracted by the united spectra estimation method based on the traditional and modern spectra estimation. 基于经典谱与现代谱估计的联合估计法提取水下目标辐射噪声线谱特征,首先分别估计采集数据的功率谱,得到估算功率谱图;
- Our pressure vessel is licensed product. 我厂生产的压力容器是授权生产产品。
- They plotted the new position of each vessel. 他们标明每艘船的新位置。
- The vessel was ruined by a submarine. 那艘船是被潜水艇毁坏的。