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- The underwater acoustic properties of polyurethanes were introduced. The recent research progress of underwater acoustic materials of polyurethanes was reviewed. 介绍了聚氨酯材料的水声特性,并重点评述了聚氨酯水声吸声材料、水声透声材料和水声反声材料的研究进展。
- Development and application of underwater acoustic materials used in the warships 舰船用水声材料的发展和应用
- Measurement for Low-frequency Properties of Underwater Acoustic Materials in a Standing Wave Tube 水声材料低频声性能的驻波管测量
- Data Acquisition and Inverse-Filter Application in Performance Measurements for Underwater Acoustic Materials 水声材料性能测量中的数据采集与反滤波应用
- Laboratory for Underwater Acoustic Measurement. 消声水池实验室。
- Underwater acoustic materials 水声材料
- Broadband measurement of sound insulation for underwater acoustical materials 水声材料宽带隔声测试方法研究
- Scattering is one of the fundamental problems of underwater acoustic, in which the influence of target shape, size and materials had been studied. 对目标声散射特性的研究是水声工程中对水下目标的形状、大小和材质进行判断识别研究的基础。
- It is an oceanographic ship that gathers underwater acoustic data, using sonar. 这是一只海洋研究船,用于收集海底声音资料,供声纳兵使用。
- In 2000,American navy successfully sends E-mail through the link of the underwater acoustic channel. 在2000年,美国海军成功通过水声链路并接入Internet 网络发送E-mail,这具有重要的战略意义;
- In networked underwater acoustic warfare (NUAW), enemy s information are mainly from underwater acoustic network (UAN). 网络化水声对抗中,水声网络将是对抗双方信息的重要来源。
- The results provide directive information for equipment operation of underwater acoustic warfare in formation of ship. 研究结果可为水声对抗器材在舰艇编队条件下的作战使用提供科学依据。
- The model of a multibeam underwater acoustic detection system based on pseudo-noise sequence is presented. 并给出了数值仿真实现,分析了信噪比、多址干扰及发射波束数等对信道估计算法性能的影响。
- Target echo signals are the main information source in underwater acoustic detection system. 目标回波信号是水声探测系统主要的信息来源。
- Direct sequence code division multiple access( DS/ CDMA) as a technique for underwater acoustic networks is attracting attention from researchers. 直接序列码分多址(ds/DMA)一种受关注的水下声通信网多址接入方案。
- Investigation on low-frequency measurement method of sound insulation for underwater acoustical material 水声材料低频隔声测试研究
- The method of counterwork effectiveness of the UACE has an important reference value for researching the UACE and the underwater acoustic countermeasure system. 该效果评估方法对水声对抗器材及水声对抗系统的研究有着重要的参考价值。
- Therefore, how to use passive SONAR to check signal and estimate the parameters of aim become a active theme in the underwater acoustic domain. 因此,如何利用被动声纳进行目标检测以及估计目标参数成为水声信号处理领域内非常活跃的一个课题。
- The acceleration responsivity is a significant parameter for a fiber-optic hydrophone used in underwater acoustic detection. 摘要对用于水声探测的光纤水听器,加速度相移灵敏度是一个重要的参数。
- Data collected at sea shows that the AOB is a versatile,robust and easy to use tool for a variety of broadband underwater acoustic applications. 在海洋中采集的数据显示AOB是一种通用的、坚固耐用的和易于操作的装置,可用于各种宽带水下声学应用。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries