noise prediction 中文意思是什麼

noise prediction 解釋
噪聲級分析儀
  • 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〉...
  • prediction : n. 1. 預言，預告。2. 被預言的事物。3. 【氣象學】預測，預報。
  1. One is recommended by the chinese transportation ministry and is specified in " assessment criteria for environmental impact from road construction projects, jtj005 - 96 " ( to be referred as prediction model from transportation ministry ). the other is recommended by the national environmental protection bureau and is published in " the general guidelines for environmental assessment technologies ? ound environment, hj / t2. 4 ? 995 ". this model is the high way noise prediction model from the united states federal high way authority ( fhwa )

    本論文針對當前我國道路交通噪聲預測中應用得極為廣泛的兩種模式：我國交通部在《公路建設項目環境影響評價規范（試行） （ jtj005 ? 96 ） 》推薦的模型（以下簡稱為交通部預測模型）和國家環境保護總局發布的《環境評價技術導則?聲環境[ hj t2 . 4 ? 1995 ] 》推薦的美國聯邦公路管理局（ fhwa ）公路噪聲預測模型（以下簡稱為fhwa預測模型） ，在進行預測時的比較研究。
  2. The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power, this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment, and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain, not on chip power

    在干擾估計抵消濾波中，以往的非線性濾波要求干擾抵消濾波后擴頻信號功率遠大於殘余噪聲功率，進而假設碼片判決的誤碼片率基本為零，這一要求對軍用擴頻通信是不利的，而且也不符合擴頻通信利用擴頻增益降低誤碼率的原則。
  3. Vehicle noise prediction and panel acoustic contribution analysis

    車內噪聲預測與面板聲學貢獻度分析
  4. The methods will not only make a key tool for noise prediction, but also play a role for noise control of the propeller in engineering project

    整個方法對船舶螺旋槳噪聲預報提供了工具，對螺旋槳的噪聲控制及低噪聲設計也有重要的工程價值。
  5. ( 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。
  6. Development of noise prediction method on fluid induced pressure oscillations in cavities

    流動誘導空腔振蕩預測方法的改進
  7. Prediction of noise induced by interaction between turbulent flow and propeller blades

    船舶螺旋槳葉片與艉部湍流場互作用噪聲的預報研究
  8. Come to the road vehicle breakdown, circadian variation and variation week. use of equivalent continuous a levels and the cumulative percentage of the level of traffic noise test evaluation, proportional prediction right sontu street next five years, the traffic noise trend forecast

    運用等效連續a聲級及累計百分數聲級對測試的交通噪聲進行評價，採用比例預測法對雄楚大街未來5年交通噪聲的發展趨勢進行預測。
  9. Then, sage adaptive filtering usually used in kinematic gps navigation and positioning and its shorcoming are analyzed. the weights of measurement residuals and state correction residuals are modified according to the self - correlation property of colored noise and robust estimation. the procedure of weighte d prediction of covariace matrix not only resists the influence of outlying kinematic model errors, but also controls the effects of measurement outliers

    然後，分析了目前常用於有色噪聲處理的sage自適應濾波及其在動態gps導航定位應用中的缺陷，並依據有色噪聲的自相關特性和抗差估計調整觀測殘差和狀態改正數的權比，再通過加權預報控制殘留在其中的異常對協方差矩陣自適應估計的影響。
  10. Development of traffic noise prediction and control methods

    地理學視角中的交通噪聲污染特徵及解決途徑
  11. A survey and recent progress of wheel / rail noise prediction arc summarized

    摘要綜述了目前國內外輪軌噪聲的預測研究的概況及新進展。
  12. It offers us the basis of the wheel / rail impact noise prediction

    建立輪軌沖擊噪聲激擾時域輸入模型，為輪軌沖擊噪聲的預測提供了基礎。
  13. Japan and some countries of europe do a great deal of work at the aspect of noise prediction

    日本和歐洲在噪聲預測方面做了大量工作。
  14. The exploitation of this software makes complicated noise prediction calculation convenient

    本噪聲預測軟體的開發，使復雜的噪聲預測計算更加簡便。
  15. Industrial - process control valves - part 8 - 3 : noise considerations ; control valve aerodynamic noise prediction method

    工業過程式控制制閥.第8 - 3部分:噪聲的考慮.控制閥的氣動噪聲預測法
  16. Industrial - process control valves - part 8 - 3 : noise considerations - control valves aerodynamic noise prediction method

    工業過程調節閥.第8部分:噪聲考慮因素.第3節:調節閥氣動噪聲預測法
  17. Due to the complexity of noise prediction calculation, the train running noise was taken as line sound source to predigest the model in fore prediction commonly, by this way, the error of the result and the fact value was relatively great

    由於噪聲預測計算的復雜性，在以前的預測方法中一般都是將列車運行噪聲作為線聲源，以使預測模型簡化，這樣得到的結果與實際值之間誤差較大。
  18. Acoustics - recommended practice for the design of low - noise workplaces containing machinery - sound propagation and noise prediction in workrooms

    聲學.低噪聲機械工作間設計的推薦實施規程.工作室中聲傳播和噪聲預測
  19. Acoustics. recommended practice for the design of low - noise workplaces containing machinery. part 3 : sound propagation and noise prediction in workrooms

    聲學.含機械設備的低噪音工作場所用推薦操作規程.第3部分:工作間的聲音傳播和噪聲預測
  20. Industrial - process control valves - noise considerations - control valve aerodynamic noise prediction method - control valve aerodynamic noise prediction method

    工業流程式控制制閥.噪聲.控制閥氣動噪聲預測法
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