水聲信標 的英文怎麼說

中文拼音 [shuǐshēngxìnbiāo]
水聲信標 英文
acoustic beacon
  • : 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...
  • : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
  • 水聲 : 1. [物理學]underwater sound2. (水發出的聲音) sound of water
  1. Through the inspecting, the author selected three methods of eradiate noise ' s feature extraction. the methods include the pedigree, e - filter, fractal. in those methods, the pedigree is based on frequency field, the e - filter is based on the energy field and the fractal is based on time field

    本文作者經過考察,採用了三種前期研究中較為有效的下目特徵提取方法? ?基於功率譜估計的線譜特徵提取方法、基於小波分析的不同頻段內能量特徵提取方法和基於號分維特性的特徵提取方法。
  2. 6 an algorithm of kurtosis signal - to - noise ratio ( ksnr ) based the mot - radiated noise polyspectrum feature extraction is presented

    6提出了基於峰度噪比的下h輻射噪的多譜特徵提取演算法。
  3. Compared with the pressure hydrophone, vector transducer can provide both the information about pressure ( scalar quantity ) and particle velocity ( vector quantity ) of the sound field, which offers more possibilities for signal processing. so vector transducer and its signal processing have attracted the attention of researchers both native and foreign. in this thesis, a method of correlation equations for pressure gradient transducer is presented, and the estimation of multi - signal parameters with single vector transducer is given

    與傳統的聽器相比,矢量聽器既能獲得場中的壓這一息,又能獲得場中質點振速這一矢量息,這為其號處理帶來更大的空間,因此矢量聽器及其相應的聯合息處理技術日益成為國內外科技工作者們研究的熱點。
  4. It has shown that a good agreement between acoustic emission and transpiration, and the ae signal is a good water stress index for irrigation control

    試驗結果表明,作物在脅迫下產生的發射號與蒸騰量等分指的一致性較好,對分虧缺反應敏感,是一個良好的灌
  5. 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監測系統屬于具有長距離無線電遙控?數傳功能的號接收記錄系統,本論文研究目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,對浮系統的工作狀態進行指揮和控制,浮則通過同一短波通道向指揮船上報浮方位、工作狀態、關鍵數據及非常狀態下的報警號等。
  6. The acoustic pressure information and particle velocity information are used to study the direction of the arrival estimation by analyzing strong linear spectrum of the single target basing on cross spectrum method

    摘要利用矢量聽器收集到的壓和振速息,研究基於互譜法分析單目的強線譜來進行目方位估計。
  7. The underwater acoustic signal is the main information for the underwater detection and identification system, so it is very important to get the acoustic signal efficiently

    摘要號是下探測系統實現對中目遠程探測識別的主要息之一,有效獲取號是一個十分重要的問題。
  8. It is well known that array processing technique is a main branch of underwater acoustic signal processing and multi - target parameter estimation

    陣列處理是號處理的重要組成部分,是進行下目參數估計的重要環節。
  9. The passive recognition technology of underwater targets is always a hot topic in the field of underwater signal processing

    下目被動識別技術一直是號處理領域研究的熱點。
  10. Mechanical, light industry commercial electrical appliances and daily mechanical, communication and information special field, environmental engineering air emission, noise

    機械輕工家電及日用機械通息專項環境工程廢:規劃咨詢編建議書編可研招咨詢
  11. First please make sure the useful signal has very good snr before you input it to amplifiers chain, then you can calculate how much gain and nf you need to get the targeted signal amplitude and noise level, based on this you can choose the right components to design amplifiers chain

    后才將其輸入放大器鏈,接著計算獲得目號振幅和噪平所需的增益與nf的大小,最後根據這些數據選擇合適的器件設計放大器鏈路。
  12. This thesis discusses on the post - processing of sonar signal which includes the search and location of the target, the pattern recognition and the neural networks classification, and also carries out a process of the sea test data with the post - process - programs to verify the validity of the pattern recognition with bp neural network, which helps to develop the sonar image processing and the image processing of other fields

    本文在完成課題中的顯示控制任務同時,對號後置處理,包括目的搜索定位以及模式識別和神經元網路識別等內容,進行了論述,並利用後置圖像處理程序對正樣機海試數據進行處理,驗證了bp神經元網路下模式識別方法在圖像處理方面的有效性,有助於納圖像處理以及其他領域圖像處理的發展。
  13. That the system can stably track targets at lake test shows the signal micro - structure extraction is effective and can be implemented for engineering application

    在湖上試驗中,該系統能穩定地跟蹤,這說明號微結構的提取方法是有效的,適合工程化應用。
  14. Finally, the study gives itself plan about information fusion of position system and underwater signal, tallying the measured data of time, position and depth with ground mark

    最後,對定位系統與號之間的息融合問題給出了自己的方案,使得時間、方位、深度的測試數據與地面記有良好的吻合。
  15. Pvdf piezoelectric membrane is used as sensitive element for measuring the scalar pressure of the underwater sound field

    壓通道採用pvdf壓電薄膜作為敏感元件,以拾取場中的息。
  16. 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,完成對號的原始波形及脈沖幅度過門限時刻、浮上矢量聽器的方位數據及gps數據的記錄。
  17. The underwater wget sdriulator is developed for the underwater tuget tracking system. lts functon is to simulate acoustic muhi - channel signals and underwater taiget ' s dring tracks as if the buoy receiver is receiving data frorn the real world

    下目模擬器是下目跟蹤定位系統的實驗室檢驗設備,主要任務是模擬多途號和下目的運動軌跡。
  18. 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

    主動跟蹤定位系統通過測量脈沖號的傳播時延可以測得目相對接收機的距離,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。
  19. The acoustic 3d imaging sonar can obtain the 3d slice images by the receiving sound signals. so the underwater intelligent robot can identify and classify the detected target. in this paper, the hardware system of the underwater receiving unit of the acoustic 3d imaging sonar is researched and implemented

    下三維成像納通過獲取下目的三維息,並在此基礎上提取出目的三維切片圖像,實現對探測目的三維識別和分類,從而完成視覺的任務。
  20. 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數字語音通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
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