推算抽樣法 的英文怎麼說

中文拼音 [tuīsuànchōuyàngfǎ]
推算抽樣法 英文
estimation sampling
  • 推 : 動詞1 （向外用力使物體移動） push; shove 2 （磨或碾） turn a mill or grindstone; grind 3 （剪或削...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 推算 : calculate; reckon; reckoning; prediction; calcu-lating
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  1. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  2. We believe the principle reasons are : there is disparity in the conception of the domestic tourist, sampling methods are not universal ; the totality surveyed or calculated is inconsistent

    認為其主要原因是：國內旅遊者的概念理解存在差異；抽樣調查方法不統一；推算的總體不一致等。
  3. The multiresolution method is extended and applied to random vibration control system, thus a multiresolution random vibration control algorithm is created, which provides a satisfied solution to the poor control precision problem at low frequency that was pointed out and remained unsettled for many years. the control algorithm has been successfully implemented on dactron ' s shaker control system, showing great improvement in low frequency control precision, with a little more computation resource consumed. high resolution octave analysis is another successful application of multiresolution spectrum estimation theory

    在多抽樣率信號處理理論和多分辨譜估計理論的基礎上，本文進而將多解析度思想推廣到隨機振動控制理論中，提出了多分辨隨機振動控制演算法，解決了振動控制界多年來懸而未決的低頻控制精度問題，並在dactron公司laser ~ （ tm ）和comet ~ （ tm ）等多種振動控制產品中得到了成功的應用，在計算量增加不大的前提下取得了令人滿意的控制效果。
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