水聲脈沖 的英文怎麼說

中文拼音 [shuǐshēngmàichōng]
水聲脈沖 英文
ping
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 水聲 : 1. [物理學]underwater sound2. （水發出的聲音） sound of water
  1. A device used underwater to produce pulses of sound, as for an echo sounder

    聲脈沖發送器置於水下產生聲脈沖的裝置，如迴音器中的裝置
  2. The experimental data are in good agreement with the calculated results of the model by analysis of the data of the laser pulse of different energy induced the laser plasma shock front by acoustics means. in addition, the calculated results of the model are in good agreement with the experimental data by optics means

    同時設計應用聲學方法對水中不同能量的脈沖激光作用下產生的激光等離子體沖擊波波前傳播過程進行測試及數據分析，對光學陰影方法探測的激光等離子體沖擊波近場波前傳播數據進行詳細分析，結果表明新模型計算結果與實驗測量值一致。
  3. Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials - pulse - tube method

    水聲材料縱波聲速和衰減的測量脈沖管法
  4. The length between each unit is 0. 16m, and the whole hydrophone is 0. 52m long. in a normal cistern, the directivity and sensitivity of the hydrophone is tested with an impulse method

    在非消聲水池中，用脈沖方法，採用測試信號頻率為4688hz ， 5度為間隔，測得其指向性。
  5. The primary task of this thesis is how to design a set of data gathering system, which can track record original wave forms of sound signals, the moment that sound impulse range pass gate limits, the data on the orientations of vector water - sensor in the buoy and the data obtained by gps

    本論文以整個系統的硬體設計為主要研究對象，主要任務是設計一套數據採集系統，完成對聲信號的原始波形及聲脈沖幅度過門限時刻、浮標上矢量水聽器的方位數據及gps數據的記錄。
  6. Then we analyze the static character of sbs to obtain the sbs gain factor and threshold under continuous wave and pulse. because there is no stokes seed in fiber hydrophone system, we analyze the sbs based on the noise initiation of sbs model. we use the finite differential time domain method to do the sbs numerical simulation in fiber

    由於光纖水聽器中的sbs是在沒有種子光注入下產生的，於是我們推導了噪聲激發模型下描述sbs的耦合波方程組，對該方程組使用時域有限差分法進行了數值模擬，並推導了連續光和脈沖光下的閾值。
  7. The forming mechanism of crosstalks in the tdm system was analyzed theoretically, and the relationship between crosstalks and the extinction ratio of optical pulse modulator used in the tdm system was investigated. the interchannel and intrachannel crosstalks in the wdm system were discussed separately, and the contributions to crosstalks were appraised from architecture ’ s alteration, the finite isolation between channels in multiplexers or demultiplexers, and nonlinear effects in the system. noises in the large - scale multiplexing system were studied theoretically, and all kinds of factors were considered that have relation to noises, phase resolution, and dynamic range of the system, such as multiplexing channel number, the length of the transmission fiber, using in - line erbium - dropped fiber amplifiers or not, and so on

    本文從理論上分析了光纖水聽器時分復用系統串擾的形成機理，分析了光脈沖調制器的消光比與系統串擾的關系;分別對光纖水聽器波分復用系統的異頻串擾和同頻串擾進行了理論分析，研究了光纖水聽器波分復用結構、波分復用器與解復用器隔離度等因素以及非線性效應對系統串擾的影響;對大規模光纖水聽器復用系統噪聲進行深入細致的理論分析，研究了系統噪聲、相位解析度、動態范圍與復用數目、傳輸光纖長度、中繼光纖放大器等諸多因素的關系。
  8. Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors. usually the target - receiver range can be got by the propagating time of a signal pulse. if this propagating time is larger than the pulse repetition period, it will mean that more than one signal pulse are on propagation

    主動水聲跟蹤定位系統通過測量脈沖信號的傳播時延可以測得目標相對接收機的距離，當此傳播時延大於系統同步周期時，時延測量就會呈現不確定性，可能相差若干個重復周期，導致定位解多值，稱之距離模糊現象。
  9. To improve the robustness of the algorithm, we propose a new method to control the local watermarking strength and develop a weighting process of watermark detection. compared with other well - known 3d model watermarking algorithm, our algorithm has following advantages : ( 1 ) it is able distribute information corresponds to a bit of the watermark over the entire model ; ( 2 ) its method to control the local watermarking strength is more better than other ones ; and ( 3 ) its weighting process of the watermark detection improves its robustness against a variety of attacks

    與目前國內外流行的三維模型水印演算法相比，我們的三維模型水印演算法具有以下優點： （ 1 ）每1比特水印信息在三維模型西北工業大學博士論文中的分佈更廣；我們提出的水印局部嵌入強度控制方法比其它水印局部嵌入強度控制方法更合理，適用范圍更廣泛，沒有病態情況存在；門）我們提出的雙脈沖加權水印檢測技術有效地降低了噪聲對水印檢測的影響，而其它的三維模型水印演算法都沒有考慮如何根據局部snr對水印的嵌入對象進行加權處理以減少噪聲對檢測水印的影響。
  10. Second discusses adaptive filter ' s application in measuring frequency of cw sonar pulse signal and in towed linear array sonar signal processing. simulation is made about adaptive filter ' s application. simulation result shows that adaptive filter is very powerful tool for underwater acoustic signal processing

    接下來本文討論了自適應濾波器在cw聲納脈沖信號測頻和拖曳線列陣聲納信號處理中的應用，並進行了模擬研究，模擬結果表明自適應濾波器是處理水聲信號的十分有效的工具。
分享友人
分享到 Line

分享到臉書