水聲測距 的英文怎麼說

中文拼音 [shuǐshēngcèjù]
水聲測距 英文
hydroacoustic ranging
  • 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...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 距 : Ⅰ名詞1 （距離） distance 2 （雄雞、雉等的腿的後面突出像腳趾的部分） spur （of a cock etc ）Ⅱ動詞...
  • 水聲 : 1. [物理學]underwater sound2. （水發出的聲音） sound of water
  • 測距 : range [distance] finding; distance measurement; ranging; stadiometry
  1. The main work of the first part includes : introducing some methods of underwater sound positioning and analyzing their performance, analyzing the theory of measuring direction and distance of the target by three elements symmetrical and dissymmetrical array, comparing the measuring error of two kinds of array, and giving the theory of the generic arrays and discussing the phase wrapping and the distance wrapping in passive ranging

    對被動測距技術的研究工作主要包括：簡單介紹了水聲定位的幾種方法，並對其性能進行了分析對比，分析了三元對稱陣和非對稱陣測向測距的原理，對兩種陣型的測向測距誤差進行了對比分析，還給出了一般陣型測向測距原理，最後還對被動測向測距中存在的相位模糊和距離模糊問題進行了探討。
  2. Use the probe bottom sonar system to make experiments in the national key laboratory noise elimination water pool. according to the experiment results, the probe bottom sonar system work in good order. it can accurately obtain the distance information

    在國家重點實驗室消聲水池進行探底聲納系統實驗，並根據實驗結果，證明了探底聲納系統工作正常，能準確的探測出距離信息。
  3. The underwater - radio buoy for use as obtaining the ocean " s acoustical parameters is a underwater acoustic signals record system which has long distance radio remote control and data transmit function. the technology key of the dissertation study is that under the requirements of the system the monitor and record equipment on the acoustic source vessel, the monitor and record equipment on control vessel command and control the work slate of the buoy system by radio data transmitting mode of short wave transmitter - receiver

    海洋環境參數獲取浮標監測系統屬于具有長距離無線電遙控?數傳功能的水下聲信號接收記錄系統，本論文研究目標的技術關鍵在於根據系統要求，指揮船和發射船監控記錄設備通過短波電臺以無線數傳方式，對浮標系統的工作狀態進行指揮和控制，浮標則通過同一短波通道向指揮船上報浮標方位、工作狀態、關鍵數據及非常狀態下的報警信號等。
  4. Range ambiguities and phase wrapping are the two main problems during acoustic ranging, direction finding, tracking and positioning. we mainly discuss range ambiguities

    距離模糊和相位模糊是水聲測距、測向、跟蹤定位中的兩大模糊問題，抗距離模糊是本文研究的主要內容。
  5. Passive ranging is one of the difficulties in the field of underwater sound signal processing

    被動精確測距一直是水聲信號處理中的困難之一。
  6. Development in the field of projector design is spurred on mainly by three motivating forces : the extensive research in underwater propagation establishes the advantages of increasing lower frequencies for long range detection, the advent of new active and structural materials leads to substantial improvements in transducer performance, applications of the computer technology

    發射換能器設計的發展主要有三方面的推動力：對水聲傳播的廣泛研究確立了低頻應用於長距離探測的優勢，新的驅動材料和結構材料的發展使得換能器在性能方面得到提高，計算機技術的應用。
  7. The usual measuring method, that is, to use the water temperature of 1 meter under water surface to adjust the spinning speed of the sounding device, will result in greater measuring errors. this article put forwards the mathematical model of water temperature with the vertical water temperature that was measured at the deepest site of six sections. after adjusting the sounding device w

    本文依據實測的6個斷面深泡點處的垂線水溫建立了水溫輔助測深數學模型，依據該模型即可得到保證回聲儀測深精度的水溫值，用該水溫值校正回聲儀后，便可得到斷面對應于各起點距處的水深值，從而解決了丹江水庫三維模型建立的關鍵問題。
  8. The 3d model needs three parameters, among them, the distance from the dam and the distance from the starting point of the section can be measured directly, and the depth of the water corresponding to the distance from the starting point of the section can be measured by the sounding device. however, because the reservoir is very deep, the measuring error of the water depth is greater

    而建立其三維模型需要三個參量，其中距壩里程、備斷面起點距可直接測得，而對應于各起點距的水深值因丹江口水庫較深，按通常的方法使用回聲儀測深，即以水下二米處的水溫校正回聲儀的轉速來測深有較大誤差。
  9. In the second part, the new method is compared with the old one in such aspects as system structure and signal processing methods. in the third part, the properties of dsss and lfm systems, especially the echo signal correlation processing of the systems are discussed. the last part are the respective analyses of water - pipe simulation experiment results and the trial results in zhong yuan oil field

    本文首先介紹了超聲測距的基本原理，分析了通道的聲傳輸特性；接著將傳統液位測量方法和新型液位測量方法的系統構成和信號分析處理方法做比較；然後對系統的發射信號（直接序列擴頻信號和線性調頻信號）的特點進行了研究，並著重討論了回波信號的相關處理；最後對水管模擬實驗測量結果和油田實地測量結果分別進行了分析和討論。
  10. 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。
  11. The performance of the system has been investigated both in the laboratory ' s pool and on sea trials in real ocean environments at xiamen bay coast. the results have indicated that the new generation of underwater acoustic voice communication system has the capability to overcome the severe multipath interference and has longer working range

    通過實驗室水池的實驗和廈門港淺海域的現場測試，證實了本研究實現的新一代水聲數字語音通信機確實有更遠的作用距離並且有抗強多途徑干擾的能力，達到預期的研究目標。
分享友人
分享到 Line

分享到臉書