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   underwater 在 船舶工业 分类中 的翻译结果: 查询用时:0.01秒
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underwater     
相关语句
  水下
    Numerical analysis and active control simulation of underwater structural acoustic radiation and transmission
    水下结构声辐射和声传输的数值分析及主动控制模拟研究
短句来源
    Theory and Its Applications of Ship Dynamic Responses to Non-contact Underwater Explosions
    舰船非接触水下爆炸动力学的理论与应用
短句来源
    Research on Higher-Order Statistics Based Underwater Moving Target Dynamic Spectrum Feature Enhancement
    基于高阶统计量的水下目标动态谱特征增强研究
短句来源
    Structured Light Sensor and Underwater 3D Inspecting System
    线结构光视觉传感器与水下三维探测
短句来源
    The Study on Similitude of Under water Complex Elastic Shell-structure
    水下复杂弹性壳体的相似性研究
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  水中
    NUMERICAL CALCULATION OF UNDERWATER ACOUSTIC RADIATION BY STRUCTURE VIBRATION
    结构振动的水中声辐射计算
短句来源
    Cepstrum Used in Underwater Target Recognition
    倒谱在水中目标分类中的应用
短句来源
    Free vibration of longitudinal stiffened cylindrical shell under water
    水中纵向加肋圆柱壳体的自由振动
短句来源
    Auditory feature extraction of noise radiated from an underwater target
    水中目标辐射噪声的听觉特征提取
短句来源
    Experimental Study on Noise Suppressing of Underwater Bubble Screen
    水中气泡幕对噪声的屏蔽效果研究
短句来源
更多       
  水下
    Numerical analysis and active control simulation of underwater structural acoustic radiation and transmission
    水下结构声辐射和声传输的数值分析及主动控制模拟研究
短句来源
    Theory and Its Applications of Ship Dynamic Responses to Non-contact Underwater Explosions
    舰船非接触水下爆炸动力学的理论与应用
短句来源
    Research on Higher-Order Statistics Based Underwater Moving Target Dynamic Spectrum Feature Enhancement
    基于高阶统计量的水下目标动态谱特征增强研究
短句来源
    Structured Light Sensor and Underwater 3D Inspecting System
    线结构光视觉传感器与水下三维探测
短句来源
    The Study on Similitude of Under water Complex Elastic Shell-structure
    水下复杂弹性壳体的相似性研究
短句来源
更多       
  水声
    Blind Equalization Algorithms Using Higher-Order Statistics for Underwater Acoustic Channel
    基于高阶统计量的水声信道盲均衡理论与算法
短句来源
    Study on Principle and Method of Broadband Underwater Acoustic Array Signal Processing
    宽带水声阵列信号处理的原理及方法研究
短句来源
    Theoretical and Experimental Study on Underwater Anechoic Coating
    水声吸声覆盖层理论与实验研究
短句来源
    Long Base Underwater Navigation System
    长基线水声应答器导航系统
短句来源
    ANALYSIS OF DOPPLER FREQUENCY DRIFT FOR MEASUREMENT OF FISHERIES UNDERWATER ACOUSTICS
    对渔业水声测量中多普勒频移的分析
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      underwater
    Implementation of an OFDM underwater acoustic communication system on an underwater vehicle with multiprocessor structure
          
    Aimed at the real-time processing requirement of the OFDM algorithm, an underwater acoustic communication system with real-time processing capability is carried out.
          
    An improved hypothesis-feedback equalization algorithm for multicode direct-sequence spread-spectrum underwater communications
          
    In underwater acoustic communication, because the available bandwidth of the channel is severely limited, the direct-sequence spread-spectrum scheme can only be realized at low bit rates.
          
    However, in this case, due to the rapid time-variability of the underwater channel, and the influence of inter-symbol interference (ISI) and inter-channel interference (ICI), the conventional rake receiver may fail to function.
          
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    With the recurreence method, a program for the solution of the basic equations of a flexible cable immersed in a uniform stream is given and examples about underwater towing and deep-sea mooring cables are calculated.Moreover a normalization analysis, by means of which all shapes of such cables can be reduced to a curve depending only on one parameter, is treated.The curve thusobtained is similar in geometry with the true shape of the cable, Their similitude ratio depends on the tension in the cable.Thereby,...

    With the recurreence method, a program for the solution of the basic equations of a flexible cable immersed in a uniform stream is given and examples about underwater towing and deep-sea mooring cables are calculated.Moreover a normalization analysis, by means of which all shapes of such cables can be reduced to a curve depending only on one parameter, is treated.The curve thusobtained is similar in geometry with the true shape of the cable, Their similitude ratio depends on the tension in the cable.Thereby, with the aid of"The Normalization Graph of Cable"provided in this paper, the authors have discussed some practical problems, such as lessening the drift radius at mooring and increasing the depth of submersion of a towing body, and proposed a manual method with which under various boundary conditions the geometical shape and tension of a flexible cable can be easily calculated.It is found that the calculated results fitted the sea trial data well.

    本文得出了用递推法解均流中悬索基本方程组的程序,并给出在水下拖索与深水锚索方面的计算实例。进而作了悬索的归一化分析。借此,一切悬索可归并成仅依赖于一个参量的曲线,该曲线与悬索真实形状几何相似,其相似比依赖于索内张力。 借文中所提供的“归一化悬索图”讨论了诸如提高拖曳器潜深、缩短锚距等实际问题。并提出了利用该图方便地手算任何边界条件下悬索几何形状及其张力的方法。 计算结果与实测符合较好。

    The mechanical type propeller dynamometer is unable to satisfy the requirements of the automatic measurement for the ship model tests.The R. P. D. is presented in this paper. Except the usual ship model test, it is possible to carry out measurement of tests for the underwater model and multi-propeller shaft model.The principle, structure and characteristic of the R. P. D. are described in this paper.In addition, the open water test data measured by the R. P. D. in the three towing tanks are compared with...

    The mechanical type propeller dynamometer is unable to satisfy the requirements of the automatic measurement for the ship model tests.The R. P. D. is presented in this paper. Except the usual ship model test, it is possible to carry out measurement of tests for the underwater model and multi-propeller shaft model.The principle, structure and characteristic of the R. P. D. are described in this paper.In addition, the open water test data measured by the R. P. D. in the three towing tanks are compared with the results obtained by the mechanical type dynamometer. It is shown that the performance of the R. P. D. is stable and reliable.

    机械式螺旋桨动力仪已不能满足船模试验自动化测量要求。本文提出的变磁阻式螺旋桨动力仪除用于水面船模试验外,并可用于水下模型及多桨轴模型试验。评述了变磁阻式螺旋桨动力仪的原理、结构和性能;列举了该动力仪在三个不同尺度水池中与机械式螺旋桨动力仪作敞水试验的比测结果。试验结果表明,仪器的性能稳定可靠。

    This paper gives a description of the long base underwater navigation system about its outline, working principle, operation on the sea and the method of real time data processing. By making some necessary approximations, the algorithm used for this system is able to avoid solving directly system of nonlinear equations without losing the expected accuracy. The method of the data-arrangement and the real time signal processing will enable the system to adapt itself to practical signals. Some data obtained...

    This paper gives a description of the long base underwater navigation system about its outline, working principle, operation on the sea and the method of real time data processing. By making some necessary approximations, the algorithm used for this system is able to avoid solving directly system of nonlinear equations without losing the expected accuracy. The method of the data-arrangement and the real time signal processing will enable the system to adapt itself to practical signals. Some data obtained directly on the sea and their analysis are included in the paper and the possible applications of the system in expectation are mentioned as well.

    本文给出一种长基线水声应答器导航系统的工作原理,系统设备概况,海上实施及数据的实时处理方法。该系统所采用的算法由于作了某些必要的近似处理,避免了直接解非线性方程组同时又满足了精度要求。一整套数据整理及实时处理方法,使系统对于海上实际信号有较好的适应性。文中列出了部份海上试验的数据並作了分析,也对该系统的可能应用范围作了简要展望。

     
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