ship noise 中文意思是什麼

ship noise 解釋
船舶噪聲
  • ship : n 1 船；大船；海船；艦〈作陰性看，代名詞用 she her〉。2 三桅船；全裝帆船。3 船形物。4 〈俚語〉賽...
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. For ship mounted sonar, the transducer received not only the required signal but also the ship noise. for distant signal, the ship noise is a strong interference

    在船用聲吶環境中，基陣所接收的除了可能有的目標信號外，還存在本艦噪聲，它對于遠方的目標信號是一個強大的干擾源。
  2. While he was in the act of getting his bearings, mr bloom, who noticed when he stood up that he had two flasks of presumably ship s rum sticking one out of each pocket for the private consumption of his burning interior, saw him produce a bottle and uncork it, or unscrew, and, applying its nozzle to his lips, take a good old delectable swig out of it with a gurgling noise

    當他剛站起來時，布盧姆先生曾注意到，他兩邊兜里各露出一瓶看來是水手們喝的那種朗姆酒，為的是暗地裡灌進他那灼熱的胃。布盧姆先生瞧見他這會兒正四下里打量，並從兜里掏出一隻瓶子，拔開或是擰開塞子，將瓶口對準嘴唇，咕嘟咕嘟地痛飲了一通，津津有味。
  3. Upbuild the signal model for ship noise, deduce the relationship between sound pressure and particle velocity in plane wave

    建立本艦噪聲的信號模型，推導了平面波聲場聲壓和振速的相關性。
  4. For phase space reconstruction of ship - radiated noise, using auto correlation function and mutual information to select the delay - time, and using false nearest neighbors method to select the embedding dimension

    從自相關函數及互信息嫡兩個方面討論了相空間重構中延遲時間的選擇。
  5. But this is not a problem for ship structure which is thin and good ductibility. the basic equation of statistical energy analysis is deduced in this paper, the shipboard noise of 295, ooodwt vlcc is calculated based on sea, the factor effect on the noise of shipboard is discussed and some measurement to reduce the noise level is suggested

    根據統計能量分析方法的基本原理，以實船為例進行了船舶機械設備等噪聲聲壓水平的估算和船舶艙室噪聲預示，並對影響船舶艙室噪聲水平的各種因素進行了分析，提出了減小船舶艙室噪聲水平的方法。
  6. The results show that the self - adaptive filter can be used to detect line spectrum, the wavelet transform and the fourier transform can be used to detect the ship noise in modulating the anisotropic noise field

    結果表明：自適應濾波對于各向異性噪聲場中的線譜檢測有良好的效果；而小波變換和短時傅里葉變換對各向異性噪聲場中的艦船噪聲調制信號檢測有良好的效果。
  7. ( 4 ) establish the grey model on the basis of the actual sound pressure level of 27000dwt bulk carrier superstructure cabin as a sample and extend the grey model through comparing the prediction values with the actual values, aiming to predict the noise level of superstructure cabin of 74500dwt bulk carrier and 5618teu container ship

    （ 4 ）以27000噸散裝貨船上層建築艙室噪聲的實際測量值為樣本，建立灰色預測模型，通過預測值和實測值的對比分析對模型進行推廣，並分別對74500噸散裝貨船和5618箱集裝箱船的上層建築艙室噪聲進行預測。
  8. The multiscale modulation spectrum analysis based on the mulitresolution analysis of noise caused by ship propoller cavitation

    螺旋槳空化噪聲的小波多尺度調制譜分析
  9. A new method for feature extraction in ship noise

    基於多重分形的艦船噪聲特徵提取
  10. Study on target recognition based on simulation model of ship radiated - noise

    基於艦船噪聲模擬模型的目標識別研究
  11. A new method of line - spectrum extraction of ship radiated - noise based on part imitate was proposed in this paper

    摘要提出了一種基於分段擬合的提取艦船噪聲信號功率譜中線譜特徵的方法。
  12. 2 ) the ship - radiated noise is studied by means of hos that includes bi - spectrum and tri - spectrum on the basis of analyzing the properties of the noise. then some features are extracted from bi - spectrum and tri - spectrum

    在對艦船輻射噪聲深入分析的基礎上，利用雙譜、三譜對艦船輻射噪聲進行了研究，指出了應用高階統計量的雙譜、三譜分析艦船噪聲的優越性。
  13. In this paper, many features of ship ' s radiated noise are extracted by the means of techniques in modern signal process, and the theory of information fusion is used for calculating basic belief assignment and identification and classification of targets

    本文應用現代信號處理技術的多種手段主要研究了艦船噪聲的多種特徵信息提取，應用信息融合理論重點研究了可信度分配、目標識別分類的信息融合實現等技術。
  14. It can be learned by analyzing the ship radiated noise signals using nonlinear methods that the ship radiated noise signals are n ' t rigid fractal signals, but there are positive maximum lyapunov exponents, this indicates that the ship radiated noise signals are nonlinear

    通過對艦船輻射噪聲進行混沌特徵分析，結果表明，艦船噪聲不具有嚴格分形性，但具有正的最大lyapunov指數存在，這說明艦船噪聲信號中有非線性成分存在。
  15. The ship radiated noise is analyzed and its 4 features are extracted from the envelop spectrum. the envelope of ship noise waveform can be demodulated utilizing hilbert transform, and the spectrum components with line rotation frequency of propeller shaft are extracted effectively by bispectrum, 1 ( 1 / 2 ) spectrum and 2 ( 1 / 2 ) spectrum analysis

    對于通過希爾伯特變換解出的艦船輻射噪聲包絡信號進行高階統計量分析，有效地提取出了艦船噪聲的雙譜、 11 / 2維譜、 21 / 2維譜等方面的特徵。
  16. ( 5 ) mfpic ( matched field postbeamformer interference canceller ) is proposed to cancel tow ship ' s noise. the advantage of mfpic is that it can be used to cancel the tow ship ' s noise for all arrival directions. furthermore, this new approach can be used to detect weak target, which has the same bearing angle of a strong interference

    （ 5 ）將平面波波束形成后干擾抵消與匹配場處理技術進行有機結合，探索性地提出了拖線陣聲納本艦干擾的匹配場抵消方法和匹配場處理后的干擾抵消方法，為本艦多途干擾抵消、水面強干擾抑制和水下弱目標檢測提供了新的技術途徑。
  17. We can compensate the phase difference and subtract at the direction of ship noise, then the noise can be cancelled. the merit o f this method is simple, stable and efficient. the main contents are : 1

    首先介紹了噪聲抵消的一般方法，並且結合拖曳陣本艦噪聲的抵消問題研究了自適應法和雙線列陣相減法對本艦噪聲的抑制模型及原理。
  18. The examples of suppressing ship noise interference are also given in this paper

    文中給出了壓制船干擾的實例。
  19. ( 2 ) introduce the basic knowledge of acoustics, the main sources of ship noise, the transmit route and characteristic, aiming to provide the basic knowledge of noise

    （ 2 ）對噪聲的基礎知識、船舶的主要噪聲源及其傳播途徑和特點進行闡述，為后續的噪聲預測提供理論依據。
  20. With the development of technology, the enhancement of people " living standard and the need of military strategy, the problem of ship noise controlling has received an increasing attention

    隨著科學的發展，人們生活水平的進一步提高和軍事戰略的需要，船舶的噪聲及其控制問題已日益受到人們的關注。
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