水下信標 的英文怎麼說
中文拼音 [shuǐxiàxìnbiāo]
水下信標
英文
subsea beacon-
The dissertation tries to combine signal processing and information fusion with the application background of under - water recognition so as to improve the reliability and accuracy of eradiate noise recognition system
本文試圖把現代信號處理技術與信息融合技術相結合，應用到具體的水下目標識別領域，以提高水下目標被動識別系統的準確性和可靠性。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水下目標特徵提取方法? ?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水聲信號分維特性的特徵提取方法。6 an algorithm of kurtosis signal - to - noise ratio ( ksnr ) based the mot - radiated noise polyspectrum feature extraction is presented
6提出了基於峰度信噪比的水下h標輻射噪聲的多譜特徵提取演算法。Compared with the same kind of systems, it resolved ambiguities on software rather than hardware with two representative approaches, one is to resolve ambiguities by majority rule and the other by a given reference to the target location
基於現代信號處理技術以及對系統信息的充分利用，軟體方法消除距離模糊變得可行，這是本文所依託的項目? ? 「水下目標跟蹤系統」的關鍵技術及主要特色之一。The dissertation is mainly including four section : the first is the experiments done in the tank, which will supply the reliable information of imaging data ; the second is image edge detection by the use of the art of the zernkie moments, which is used to detect the liner and threaded edge of the object, the third is the underwater camera calibration technique, the forth is automatic positioning the location of the camera by used of the art of cross - ratio, the result of which is satisfied
本文工作分為四個部分：第一部分是水槽實驗部分，它為后續的工作提供了可靠的圖像數據信息；第二部分是基於zom距的直線、曲線邊緣提取技術及相關的與處理技術；第三部分，水下攝像機標定技術研究，基於改進的tsai演算法，採用逐步分解的標定策略。並探討了一種相對簡單的、靈活的標定技術；第四部分是攝像機定位技術研究，採用具有平移不變性的交比進行攝像機定位，模擬試驗的最大誤差不超過2 ，效果還是令人滿意的。It is based on the above reasons, the leading system of flood, windstorm, drought control and the construction of water conservancy information engineering and the principle of theory and practicality are combined. based on the continuous development the following contents are researched in this paper : 1. the flood occurred law on major rivers and flood problems and flood control measure
正是基於這種考慮，本論文結合廣州市三防指揮系統工程和廣州市水利信息化工程的建設，本著理論性與實用性相結合的原則，從可持續發展的角度，重點研究以下內容： 1 、廣州市主要河流洪水發生的規律及存在問題與防洪措施； 2 、廣州市現有防洪措施的防洪標準與可靠性； 3 、洪水預報與調度系統的方法與技術路線； 4 、現代防洪管理。A conception of phase dynamic coupling is defined. the foc of the mot - radiated line spectrum signals is theoretically derived
在研究中，定義了相位動態耦合的概念，推導了水下運動目標輻射線譜信號的四階累積量表徵公式。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，作物在水脅迫下產生的聲發射信號與蒸騰量等水分指標的一致性較好，對水分虧缺反應敏感，是一個良好的灌水指標。Standard guide for presentation of water - level information from ground - water sites
地下水位點水層信息的標準指南It is well known that array processing technique is a main branch of underwater acoustic signal processing and multi - target parameter estimation
陣列處理是水下聲信號處理的重要組成部分，是進行水下目標參數估計的重要環節。The passive recognition technology of underwater targets is always a hot topic in the field of underwater signal processing
水下目標被動識別技術一直是水聲信號處理領域研究的熱點。A method of underwater target dimension identification was proposed by special bearing distribution data of body target echo based on identification theory of a target bearing method
摘要闡述基於目標方位走向法的目標識別理論，提出利用體目標回波的空間方位分佈信息識別水下目標尺度信息的方法。The target locating is a classic and important problem of the underwater signal processing. based on the theory of array signal processing, the paper is devoted to the study of the theories and application technologies of doa estimation and underwater array signal processing in a systematic and detailed way, especially on the design of the digital multi - beamforming system
目標定向技術是水下信號處理研究的經典問題和重要方向，本文以目標定向和陣列處理理論為基礎，從實際應用出發，系統研究了水下目標定向和陣列信號處理的相關理論和實現技術，包括陣列信號處理的基本理論，數字多波束系統的設計。During underwater signal processing, parameter estimation and target identification are two kinds of important problems
在水下信號處理中，參數估計和目標識別是兩類非常重要的問題。These years wavelet theory has been widely applied in underwater signal processing. whereas its excellent time - frequency localization, this dissertation takes continuous wavelet transform ( cwt ) as research tool and devoted to systematic research and deep exploration of two aspects in underwater signal processing field - estimation of parameters and target classification and identification
近年來小波分析在水下信號處理方面的應用得到了長足的發展，鑒于其良好的時頻局部化特點，本文將基於連續小波變換的時頻分析作為工具，就參數估計和目標識別兩方面的問題做了系統研究和深入探討。This is caused by the complexity of underwater target radiated noise and the variety condition of the sea
這是由於水下目標輻射信號和海洋環境的復雜性、多變性造成的。This paper studies mainly on the cross - components in the underwater target echoes signal processing
本文以時頻分析中的交叉項為主線，系統的研究了交叉項在水下目標回波信號處理中的應用。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
水下目標模擬器是水下目標跟蹤定位系統的實驗室檢驗設備，主要任務是模擬水聲多途信號和水下目標的運動軌跡。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
水下三維聲成像聲納通過獲取水下目標的三維聲信息，並在此基礎上提取出目標的三維切片聲圖像，實現對探測目標的三維識別和分類，從而完成聲視覺的任務。Underwater target echoes are typically nonstationary signals and time - frequency analysis is effective to deal with nonstationary signals
水下目標回波信號是典型的非平穩信號，時頻分析是分析非平穩信號的有效工具。分享友人