"The high frequencies make the bats' sonar beam very focused and short-ranged, " he said.
“高频率声波使得声音束很集中，周期很短。”他说。
The orientation of the sonar beam was considered in the active dipping sonar sensor model to complete the target movement analysis such as differentiating orientation.
在主动式吊声模型中，考虑声纳的波束方向，便于对目标进行定向等运动分析。
Sea Bat 7125-e - High resolution multi beam sonar, the S410 Deepwater hydrographic and broadband echosounder, and the PDS2000 Software package.
“海上蝙蝠”(Sean Bat) 7125-E高精度多波束声纳，S410深水水道测量和宽带回波器，PDS2000软件包。
The multiple beam sonar system for terrain survey has met the system's requirement via the results of pool static experiments.
通过水池的初步静态实验，我们研制的多波束地形探测声纳系统已经达到了了系统的设计要求。
The normal sonar system rotates its beam, either continuously or under the operator's control, and the position of maximum response to a particular echo is taken as the bearing of the target.
普通声纳系统旋转它的电波，可连续或根据运营商的控制，以及对特定回波的最大响应状态被记录为与目标间的联系。
Modern sonar systems generally use hydrophone arrays and advanced signal processing techniques to improve their detection and localization abilities, and beam forming plays an important role.
现代声纳系统普遍采用水听器基阵和一定的信号处理来提高对目标的检测和定位能力，而基阵的波束形成则在其中起着核心作用。
In this thesis, two key-techniques of high-resolution imaging sonar are studied: beam-forming and acoustical image processing.
论文对高分辨率成像声纳的两个关键技术：波束形成技术和水声图像处理技术进行了研究。
As be known, it is the base work for sonar designer to study beam pattern, and also make very important actions in naval tactics.
声纳指向性研究是声纳设计的基础，同时也是影响声纳战术运用的重要环节。
The algorithm is fast and accurate with a strong anti-jamming capability, which can be used for echo signal analysis and processing in real-time multi-beam sonar systems.
通过实时提取信号的幅度及形状的综合特征计算出信号的时延。该方法具有较强的抗干扰能力，算法快速、准确，适合于多波束声呐系统的回波信号实时分析处理。
The algorithm is fast and accurate with a strong anti-jamming capability, which can be used for echo signal analysis and processing in real-time multi-beam sonar systems.
通过实时提取信号的幅度及形状的综合特征计算出信号的时延。该方法具有较强的抗干扰能力，算法快速、准确，适合于多波束声呐系统的回波信号实时分析处理。
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